
STUDER REVOX - Service Manuals
162 manuals available for download
STUDER REVOX represents a legendary heritage in professional audio and HiFi equipment, with a comprehensive catalog of technical documentation spanning decades of innovation. Whether you need a detailed service manual for maintenance and repair, an owner's manual for operation, or a workshop manual with complete schematics and parts lists, our extensive collection covers the full range of STUDER REVOX devices. Each PDF download provides authoritative troubleshooting guides and technical specifications to support both professional technicians and dedicated enthusiasts. Access authentic repair documentation and maintenance guides that ensure your STUDER REVOX equipment operates at peak performance.

A700 Remote Control Tape Drive Operating Instructions
Operating instructions for the Revox A700 remote control unit, a specialized remote control system designed for synchronized slide presentations. This workshop manual covers remote operation of tape transport functions including rewind, fast forward, play, stop, and record modes. It explains slide synchronization control with sync-pulse recording capabilities, allowing you to advance slides in perfect timing with stereophonic audio playback. The manual details auxiliary functions such as repeat, automatic advance, and pause modes for flexible presentation control, and provides comprehensive technical guidance for simultaneous recording of sync-pulses alongside stereophonic sound tracks on both 4-track and 2-track recorders. Also included are sync-pulse cancellation procedures, detailed technical specifications for slide advance pulse recording, and a complete electrical schematic diagram of the remote control unit showing timer selector and pilot head connections. Essential service documentation for anyone operating or maintaining this professional slide-tape synchronization equipment.

A700 Slide Synchronizer Kit - Installation & Schematic
Installation and schematic guide for the Revox A700 Slide Synchronizer Kit (model 1.067.255). This workshop manual provides complete assembly instructions for both 2-track and 4-track recorder configurations, a detailed component list, wiring diagrams, and circuit board layout with labeled test points and voltage specifications for troubleshooting and verification. Essential reference for technicians setting up or servicing this synchronization module.

C115 Professional Cassette Tape Deck Service Manual
Service and operating instructions for the Revox C115 professional cassette tape deck, a rugged studio workhorse designed for broadcast and professional audio applications. This workshop manual covers complete operating procedures, detailed assembly and disassembly steps, functional description of all subsystems, alignment and calibration procedures essential for maintaining transport accuracy and audio fidelity, and full technical specifications. Includes practical guidance for routine maintenance and troubleshooting to keep the deck in broadcast-ready condition. Text presented in German, English, and French. An invaluable reference for technicians maintaining or restoring these reliable machines.

PNVU A80 RC/B67 Service Instructions Manual
Service instructions and operating manual for the Studer PNVU A80 RC and B67 pilot tone systems. This workshop manual covers the operating principles of pilot tone recording, including the STUDER follow-up system and NEO-PILOT system architecture. Detailed sections address mechanical adjustments, pilot tone amplifier calibration for both B67 and A80 models, and functional descriptions of digital-analog signal processing, tachometer signal conditioning, and tape deck interfacing. Technical specifications, dimensional drawings, and step-by-step adjustment procedures enable technicians to diagnose and service these professional audio synchronization systems. Essential reference for anyone maintaining precision tape transport control equipment. Table of Contents: - Operating principles of the pilot tone system - STUDER follow-up system - Advantages - The NEO-PILOT system - Application - Technical specifications - Dimensions - General - Operating controls - Pilot signal connections - Pilot tone recording - Procedure - Follow-up system - Start with synchronous operation - Procedure - Faulty start - Procedure - Digital-Analog Signal Processing - Input stage - Tacho signal - Frequency converter 50 to 60Hz, 60 to 50Hz - Meters - Tape deck signals - Follow-up system B67/A80 - Pilot signal system - Follow-up system - Mechanical adjustment B67/A80 - Check the height and verticality of pilot head - Check tape motion - Check tape tension - Pilot tone amplifier adjustment B67 1.167.719 - Preliminary adjustment and checks - Record adjustment - Reproduce adjustment - Adjustment of pilot track on tape - Reproduce adjustments with test tape - Record adjustments - Crosstalk_reproduc - Countercheck measurements - Pilot tone amplifier adjustments A80 PCB 1.080.932 - Positioning of the bridge connectors

Revox A50 Amplifier and A76 FM Tuner Operating Instructions
Operating instructions for the Revox A50 amplifier and A76 FM tuner, presented in German, English, and French. The manual covers setup and operation procedures including overview diagrams with detailed component identification, installation guidance, and connection schematics for complete Hi-Fi system integration. Detailed sections address speaker wiring configurations, turntable and phonograph connection, FM tuner setup, auxiliary input configuration, and proper grounding practices. Technical specifications, maintenance recommendations, and fuse rating information support safe operation and troubleshooting.

Revox A50 Amplifier Service Manual with Schematics
Service manual for the Revox A50 amplifier covering circuit diagrams, technical specifications, troubleshooting procedures, adjustment instructions, and a complete parts list with component values. This comprehensive workshop manual includes multi-language documentation in German, English, and French, providing technicians and experienced users with detailed guidance for diagnosis, repair, and maintenance of the A50 amplifier.

Revox A50 and A78 Schematic Diagrams
Complete schematic diagrams for Revox A50 and A78 amplifiers. Three pages of detailed electronic schematics showing circuit layouts, component interconnections, and signal flow paths throughout both models. The diagrams detail power supply sections, input selector circuits, tone control stages, and output amplifier stages with speaker outputs. Covers A50 serial numbers 110-699. Essential reference for service technicians performing repair work and maintenance on these classic amplifiers.

REVOX A700 Complete Schematics Set
Complete electrical schematics and circuit diagrams for the REVOX A700 tape recorder — an essential repair manual for technicians servicing this professional-grade machine. The package covers tape transport control circuits, solenoid driver sections, motor control circuits for both spooling and capstan drive, power distribution board layout, relay switching board, and full audio signal path circuits with component-level PC board diagrams. Technical drawings are provided in German, English, and French, making this service documentation accessible to workshop technicians across regions. Whether troubleshooting tape path issues, motor drive faults, or audio signal problems, these schematics provide the detailed circuit topology needed for accurate diagnosis and repair.

Revox A700 Instruction Manual
Instruction manual for the Revox A700 reel-to-reel tape recorder—a professional-grade machine built for both studio and field recording. This service manual covers setup and preliminary controls, connection procedures, tape speed selection, proper reel loading technique, and the motor mechanism that drives the transport. You'll find detailed sections on mechanical fast-forward and rewind operation, playback modes, and the full range of recording functions including mono, stereo, and dedicated REC controls. The guide walks through input connections and selector configurations, output routing to headphones and external amplifiers, and all the regulators and trim adjustments needed for optimal performance. Maintenance procedures and warranty terms are included. Essential reference for anyone operating, maintaining, or troubleshooting this classic tape transport.

Revox A700 Remote Control Operating Instructions
Operating instructions for the Revox A700 remote control unit. This guide covers remote connection procedures for the A700 tape recorder, synchronization functionality with slide projectors using impulse recording on dedicated tape tracks, detailed function descriptions for both primary and auxiliary controls, slide advancement triggering, and tape transport operation via remote. Includes electrical schematic diagram and relay switch circuit for technical reference and troubleshooting.

Revox A700 Service Manual - Tape Recorder
Comprehensive service manual for the Revox A700 tape recorder, an essential reference for technicians and experienced operators maintaining this professional-grade reel-to-reel machine. The manual provides detailed technical specifications, systematic dismantling instructions, and thorough coverage of the transport mechanism to help diagnose and resolve mechanical issues. Includes precise guidance on electrical adjustments and calibration procedures necessary for proper tape path alignment and audio performance. Complete replacement parts list with part numbers enables efficient component sourcing during repairs. Functional electronics descriptions explain the signal path and circuit operation, supported by full schematic diagrams and wiring lists for troubleshooting and component-level repair. Presented in German, English, and French for international technical reference. An indispensable workshop resource for anyone servicing Revox A700 machines. Table of Contents: - General - Technical Specifications - Dismantling - General - Removal of Cover Panels - Removal of Audio Mixing Section - Removal of Cross Member with Tape Transport Control and Capstan Speed Control - Removal of Mains Transformer - Removal of Head Assembly - Removal of Tape Tension Control Circuits - Removal of Left-hand Tape Tension Sensor Assembly - Removal of Right-hand Tape Tension Sensor Assembly - Removal of Capstan Motor - Removal of Brake Assembly - Removal of Spooling Motors - Removal of Tape Lift Solenoid - Removal of Pinch-Roller Mechanism - Removal of Tape Timer - Removal of Amplifier Compartment for Sound Head Electronics - Removal of Spooling Motor Control and Capstan Motor Control - Removal of Power Transistors - Removal of Capstan Motor Speed Control - Removal of Tape Transport Control - Re-assembly - Removal of Components from Audio Mixing Section

Revox A700 Tape Recorder Operating Manual
Operating manual for the Revox A700 tape recorder, covering complete operation of this professional-grade reel-to-reel machine. Details the tape transport mechanism, recording and playback controls, audio mixer functions including input selection and level control, operating modes for mono and stereo recording, tape speed selection, automatic tape stop functionality, specialized recording techniques, remote control operation, and routine maintenance procedures. Supplied in German, English, and French.

Revox A700 Variable Speed Control Operating Instructions
Operating instructions for the Revox A700 variable speed control unit, presented in German, English, and French. This workshop manual covers setup and operation of the external motor speed controller, detailing crystal-referenced speed stability, remote speed control methods, and practical guidelines for both playback and recording. The instructions include a pitch-to-speed relationship graph for precise frequency adjustment, along with a complete wiring diagram and electronic schematic showing the transistors and integrated circuits that form the control circuit. Essential reference for technicians and operators working with this professional tape machine accessory.

Revox A720 FM Tuner Preamplifier Operating Instructions
Operating instructions for the Revox A720 FM Tuner Preamplifier — a comprehensive owner's manual covering setup, operation, and maintenance. The guide details operating modes and system wiring configurations for integrating the unit with other audio components, explains all front and rear panel controls and their functions, covers input and output connections for source and amplifier linking, describes antenna connection options optimized for FM reception, walks through level matching and gain adjustment procedures, documents remote control operation, and provides cleaning and care procedures to maintain performance. An essential reference for owners looking to get the most from this high-end audio component.

Revox A720 Instruction Manual
Italian instruction manual for the Revox A720 integrated amplifier. This service manual provides comprehensive guidance on setup and operation, covering all front and rear panel controls including the input selector, volume regulator, and balance control. Detailed sections address the reproduction mode selector, tone controls, and filter settings for tailored audio playback. The manual explains binaural button functionality, tape recorder controls, and output selection for flexible connectivity. FM tuning operations, station selection buttons, stereo button, and noise filter adjustment are fully documented. Additional sections cover tape monitoring, level adjustments for optimal performance, and a technical appendix with specifications and troubleshooting reference. An essential resource for owners seeking to maximize their Revox A720's capabilities or perform routine maintenance.

Revox A720 Remote Control Operating Instructions
Operating instructions for the Revox A720 remote control unit. Details the 20-contact REMOTE CONTROL socket connection and explains all wireless command functions: station selection, volume control, balance adjustment, and loudness (physiologic volume compensation). Covers FM station preselection setup and remote control activation and deactivation procedures. Includes wiring schematics for the remote control unit and main amplifier interconnections, essential reference material for proper installation and operation of this premium audio remote system.

Revox A720 Remote Control Operating Instructions
Operating instructions for the Revox A720 remote control unit. This owner's manual covers connection procedures and setup between the remote control and compatible Revox audio equipment, detailing all remote control functions including station selection, volume and balance adjustments, loudness contour equalization, and FM station tuning. The guide includes text in both German and English, with a technical schematic diagram on the final page for reference during installation and troubleshooting.

Revox A720 Service Manual and Disassembly Instructions
Complete service manual for the Revox A720 FM tuner and audio preamplifier, providing technicians and experienced users with thorough repair and maintenance guidance. The workshop manual covers systematic disassembly of the tuner's mechanical and electrical assemblies, including the top and base covers, wooden side panels, front panel fascia, button rail assembly, and illuminated pushbutton mechanisms. Detailed lamp and fuse replacement procedures ensure safe component renewal. The manual includes comprehensive circuit descriptions across all major functional blocks: the RF front end, audio amplification stages, stereo decoder section, and local oscillator with frequency synthesizer architecture. Alignment and calibration instructions guide users through proper setup using standard test equipment, with specific procedures for IF filter alignment, RF circuit tuning, and stereo decoder optimization. Performance measurement protocols and complete technical specifications are provided to verify correct operation after service work. Essential reference for restoring and maintaining this classic Revox tuner to factory specifications. Table of Contents: - General - Dismantling - Removal of Top Cover - Removal of Base Cover - Removal of Wooden Side Panels - Removal of Front Panel - Removal of Push Button Rail - Replacement of Lamps in Illuminated Push Buttons - Replacement of Mains Fuse - Replacement of Power Supply Fuses - Circuit Description - RF Section - Audio Section - Alignment Instructions - Test Equipment - Additional Tools and Filters - Checking of Supply Voltages - Frequency Indication - Alignment of IF-Filters, IF-Amplifier and Center Tuning Discriminator - Alignment of Local Oscillator and Synthesizer - Alignment of RF-Circuits - Fine-Tuning of IF-Filters - Alignment of Stereo Decoder

Revox A722 Instruction Manual
Italian-language instruction manual for the Revox A722 stereo power amplifier. This service documentation covers initial power-on verification procedures, remote control switch operation and setup, manual front-panel controls, speaker connection terminals, acoustic diffuser deployment, output power limiting features, headphone jack usage, and configuration for connecting slave amplifiers. The technical specifications section provides continuous power output ratings, frequency response curves, harmonic distortion figures, input impedance values, and detailed component specifications. Documentation includes front and rear panel diagrams plus comprehensive connection schematics for both Type 0 and Type 1 amplifier variants, differentiated by serial number threshold of 1000. Connection diagrams detail the 13-contact input configuration and 14-position speaker output layout, with notes on available modifications for alternative remote or manual control operation.

Revox A722 Power Amplifier Operating Instructions
Operating instructions for the Revox A722 stereo power amplifier, covering essential setup and operation of this professional-grade audio component. The manual walks through pre-connection safety checks, power switch operation, and detailed guidance on both 5-contact and phono input sockets. Instructions cover loudspeaker outputs with group selector switches for flexible speaker configuration, output power limitation controls, and headphone jack operation. Includes wiring diagrams for manual on/off switching circuits and socket connection details, plus technical specifications for reference. Presented in German, English, and French, this workshop manual serves as the essential reference for proper installation, operation, and troubleshooting of the A722 amplifier.

Revox A722 Schematic Set
Complete schematic set for the Revox A722 stereo amplifier, providing detailed circuit documentation for service and repair. Includes block diagram overview, mains transformer assembly (A2), connection board (A3), left power amplifier board (A4), right power amplifier board (A5), and switch board (A6). Electronic schematics depict transistor circuits, relay control logic, and speaker protection circuitry—essential references for troubleshooting and restoration of this classic Studer Revox amplifier.

Revox A740 Stereo Power Amplifier Operating Instructions
Operating instructions for the Revox A740 stereo power amplifier, a professional-grade service and owner's manual available in German, English, and French. Covers essential operations including power-on procedures, input configuration via phono sockets and XLR-type connectors, input selection and level adjustment via input attenuators, dual speaker outputs for speaker groups A and B with independent group selectors, headphone monitoring via dedicated jack, and real-time signal monitoring through peak program meters. Details overload protection and loudspeaker safeguard circuits designed to prevent amplifier and speaker damage. Includes comprehensive front and rear panel diagrams with full component identification to aid troubleshooting and setup. A practical reference for technicians, installers, and experienced users maintaining or operating this classic studio and hi-fi amplifier.

Revox A740 Stereo Power Amplifier Service Manual
Revox A740 stereo power amplifier service manual with complete technical specifications, dimensions, and step-by-step disassembly procedures. Covers electrical adjustments and measurement instructions needed for ongoing maintenance and troubleshooting. Features detailed front and rear panel layouts with full component identification, internal circuit photographs for reference during service work, and comprehensive technical data including rated output power, frequency response, distortion figures, and all key performance parameters. This workshop manual is essential for anyone servicing or maintaining this classic solid-state amplifier. Table of Contents: - General - Technical data - Dimensions - Dismantling - Removal of top cover - Discharging the filter capacitors - Removal of power stages - Removal of front panel - Lamp replacement for meter illumination - Replacement of main fuse - Adjustment of voltage selector - Replacement of power supply fuses - Removal of output stages and preamplifier circuit boards - Removal of power supply - Removal of meter amplifier - Removal of filter capacitor - Removal of rotary switches - Circuit description - Description of block diagram - Description of fail-safe circuits - Description of peak program meter amplifier - Electrical Adjustments - Test equipment - Adjustment of stabilized supply voltages - Adjustment of quiescent current - Level check - Calibration of the peak program meters

Revox A76 FM Tuner Service Manual
Revox A76 FM Tuner Service Manual – comprehensive workshop reference for technicians and experienced enthusiasts. This technical guide covers complete assembly procedures, detailed functional descriptions of all major circuit blocks (HF input stage, intermediate frequency processing, demodulator, multiplex decoder, display interface, and power supply architecture), systematic adjustment and calibration methods, measurement protocols for critical performance specifications, full technical data, and complete circuit diagrams. Essential for understanding signal flow, troubleshooting reception issues, performing maintenance, and executing precise tuning alignments on this classic FM tuner. Table of Contents: - General Information - Assembly - Removing the Front Panel - Assembly from the Housing - Installing the Scale Plates - Functional Description - Operating Elements - Control Panel - HF Input Section - Intermediate Frequency Section - Demodulator Section - Auxiliary Carrier Regeneration - Multiplex Decoder - Display Section - Power Supply - Matching Instructions - Measuring Instruments - Additional Devices and Filters - Control of Frequency Spacing - ZF Filter, Matching - Display Discriminator, Matching - Control of Selection Curve - HF Section (front end), Matching - ZF Amplifier, Matching - Control of Symmetry of CENTER TUNING Instrument - Control of Limitation

Revox A76 FM-Stereo Tuner Service Manual
Complete workshop manual for the Revox A76 FM-Stereo Tuner, delivering everything needed for professional service and repair. Covers systematic disassembly procedures including front panel removal, cabinet access, and dial cord lacing techniques. The circuit description section walks through the RF input stage, IF amplifier section, demodulator, subcarrier regeneration circuitry, multiplex decoder, and indicator circuits with full technical detail. Alignment procedures are presented with explicit test equipment requirements, allowing technicians to verify and optimize tuner performance across key metrics: input sensitivity, selectivity, image rejection, distortion, signal-to-noise ratio, stereo separation, and frequency response. Includes complete technical specifications and full schematic diagrams. Essential reference for anyone servicing or restoring this classic tuner. Table of Contents: - General Information - Construction - Removing the Front Plate - Construction from the Wood Case - Installing the Scales - Function Description - Operating Elements - Circuit Boards - HF Input Section - Intermediate Frequency Section - Demodulator Section - Auxiliary Carrier Regeneration - Multiplex Decoder - Display Section - Power Supply - Alignment Instructions - Measuring Devices - Additional Devices and Filters - Checking Frequency Spacing - ZF Filter, Alignment - Discriminator Display, Alignment - Checking the Selection Curve - HF Section (Front End), Alignment - ZF Amplifier, Alignment - Checking the Symmetry of the CENTER TUNING Instrument - Checking the Limiting

Revox A77 Dolby B Version Service Manual
Comprehensive service manual for the Revox A77 tape recorder equipped with Dolby B noise reduction. This workshop manual provides detailed technical specifications and functional descriptions of the record and playback signal processors. Complete calibration procedures and service instructions guide maintenance of this professional-grade machine. Technical content includes frequency response characteristics, block diagrams, and full electronic schematics for the record processor, playback processor, and Dolby B electronics. Measurement data and precise alignment procedures ensure correct operation of the integrated Dolby B-Type noise reduction system, making this manual essential for technicians performing maintenance or troubleshooting.

Revox A77 PTT Circuit Diagrams and Schematics
Professional circuit diagrams and electrical schematics for the Revox A77 tape recorder, an essential workshop manual reference for technicians servicing this classic reel-to-reel machine. Covers all critical signal paths and control circuits: input amplifier stage (1.077.700), playback amplifier (1.077.796), oscillator (1.077.795), speed control regulation (1.077.725), switching board (1.077.499), recording amplifier (1.077.780), recording relay (1.077.715), and final amplifier with loudspeaker driver (1.077.851). Each schematic includes detailed component layouts and wiring interconnections, showing tube and transistor placements with full electrical reference data. Indispensable for troubleshooting, alignment, and restoration work on the A77.

Revox A77 S.T.T.A. Model - Schematic Diagrams and Parts List
Technical schematic documentation and parts reference for the Revox A77 S.T.T.A. tape recorder. This service manual provides complete circuit diagrams for the trigger circuit, threshold adjustment circuitry, and tape drive mechanism—essential for technicians performing repair and maintenance work on this classic machine. The detailed parts list covers all electronic components including transistors, resistors, and capacitors with full specifications. Printed circuit board layouts and component identification guides for both the tape drive control and trigger circuit boards enable accurate troubleshooting and component replacement.

Revox A77 Slide-O-Matic Service Manual and Operating Instructions
Service manual and operating instructions for the Revox A77 Slide-O-Matic automatic slide presentation synchronizer. This workshop manual provides detailed circuit diagrams with tubes and transistors, component layouts, wiring schematics, and control panel instructions available in English, French, German, and Italian. Includes schematic drawings of the control unit with complete connection details for projectors and tape recorders. Essential reference for maintenance, troubleshooting, and repair of this precision synchronization equipment.

Revox A77 Stereo Tape Recorder Service Manual
Complete service manual for the Revox A77 stereo reel-to-reel tape recorder. This workshop repair manual covers general specifications, full dismantling and reassembly procedures, and detailed mechanical component servicing including the headblock assembly, tape guide system, braking mechanisms, pressure roller, and capstan motor. The electronics section addresses amplifier circuits, oscillator design, power supply topology, and drive control systems. Includes electrical adjustments, measurement procedures, accessory information, and a comprehensive troubleshooting guide. Technical data, dimensional drawings, schematic diagrams, and component layout references support technicians through every repair and maintenance task. Table of Contents: - General - Front Panel Rear Panel - Dismantling - Removal of Housing - Removal of Cover Panel - Removal of Front Panel - Removal of Power Switch - Removal of Brake Unit - Removal of Reel Motors - Removal of Capstan Motor - Removal of Control Board - Removal of Power Transformer - Removal of Amplifier Cards - Removal of Potentiometer - Removal of Switch Board - Removal of Frame (Removal of Rotary Switches) - Mechanics - Headblock - Tape Guides - Head Mounting - Tape Tension - Brakes (Stop) - Brake Torque Measurement - Brake Adjustment - Pressure Roller - Pressure Measurement - Pressure Solenoid Readjustment - Exchange of Pressure Roller - Pressure Lever Readjustment - Capstan Motor - Removal of Capstan Axis, Ball Bearings - Exchange of Reel Motor Bearings - Lubrication - End-of-Tape Switch - Electronics - Switch Board and VU-Meter Board - Input Amplifier - Record Amplifier - Oscillator - Record Relay - Playback Amplifier - Power Amplifier (Loudspeaker Amplifier) - Power Supply - Drive Control - Photoelectric End-of-Tape Switch - Speed Regulation, Capstan Motor - Electrical Adjustments and Measurements - Demagnetizing - Tape Speed - Pick-up Head - Adjustment - Tacho Adjustment - Tacho Adjustment with Cathode-Ray Oscilloscope

Revox A77 Stereophonic Magnetophone Type ORF Prototype Test Report
Prototype evaluation and technical specifications for the Revox A77 Type ORF stereophonic tape recorder, dated May 1972. This test report documents mechanical performance characteristics including tape speed stability, flutter measurement, and speed consistency across operating conditions. Electrical performance data covers output signal levels, frequency response curves, and harmonic distortion analysis under various recording and playback scenarios. The report includes comprehensive recording chain characteristics, parasitic signal analysis to identify noise sources and interference, and detailed performance tables with measured results. Technical documentation features response curves across the audio spectrum and a simplified schematic diagram illustrating the transistorized circuit design, dual playback heads, and separate output amplifier configuration. Essential reference material for understanding the A77 Type ORF engineering specifications and performance verification methodology from the prototype testing phase.

Revox A77 Tape Recorder Operating Instructions
Operating manual for the Studer Revox A77 reel-to-reel tape recorder. This comprehensive workshop guide covers everything from initial setup through advanced recording techniques, making it essential for both operators and service technicians. Detailed sections walk you through switching on the unit, selecting tape speeds, loading blank tape, and using the tape counter to navigate your recordings. The manual explains all operating modes, identifies every input and output connector, and provides precise guidance on setting record levels for optimal audio capture. You'll find thorough instructions for playback functions, the automatic tape stop mechanism, and a full range of specialized recording techniques including duoplay recording, simultaneous multitrack recording, echo effects, and advanced multiplay methods. The troubleshooting and maintenance section covers tape editing procedures, proper handling of magnetic recording tape, and care routines to keep the machine running reliably. Remote control operation and slide synchronization features are fully documented with equipment diagrams and detailed control illustrations throughout. An indispensable reference for anyone operating or maintaining this professional-grade tape recorder.

Revox A78 Amplifier and A76 FM Tuner Operating Instructions
Operating instructions for the Revox A78 amplifier and A76 FM tuner. This workshop manual covers control descriptions, installation guidelines, speaker connection diagrams with coding disc positions, tuner connection details, phonograph and auxiliary input connections, technical specifications, and maintenance information. Complete documentation in German, English, and French for this high-end audio equipment.

Revox A78 Amplifier Service Manual
Complete service manual for the Revox A78 amplifier, covering everything needed for professional maintenance and repair. The documentation walks through functional operation and detailed circuit analysis for each stage—input, filter, tone control, driver, and power output—so technicians understand how the signal path flows. Technical specifications and performance data are included alongside a systematic troubleshooting guide to diagnose faults quickly. Adjustment procedures detail calibration steps with precision requirements. Full schematic diagrams show all component values and placements, supported by a comprehensive parts list that includes capacitor marking references for accurate replacement. Exploded mechanical views clarify assembly and disassembly sequences for internal components.

Revox A78 Amplifier Service Manual
Service manual for the Revox A78 amplifier—a comprehensive repair and maintenance guide for technicians and experienced users. Covers functional operation of the amplifier, detailed circuit descriptions for both audio and control sections, systematic troubleshooting to diagnose common faults, step-by-step adjustment procedures for optimal performance, complete technical specifications, and full schematic diagrams with component part numbers clearly identified. The parts list includes exploded views of internal construction for straightforward component location and replacement. Everything needed for professional servicing, repair, and preventive maintenance of the A78.

Revox A88 Trainer Operating Instructions
Operating instructions for the Revox A88 Trainer language laboratory system. This manual covers equipment operation, program recording and distribution, student and teacher console functions, and tape unit management for classroom language instruction. Detailed instructions address control layouts, operation sequences, and practical workflows for educators and language lab technicians managing multi-student audio setups.

Revox Agora B Active Loudspeaker Operating and Service Instructions
Complete operating and service manual for the Revox Agora B active loudspeaker system. Covers placement and positioning for optimal acoustic performance, operational controls and indicator lamps, connection procedures for preamplifiers and power amplifiers, and full technical specifications. The service section includes detailed disassembly instructions, internal switch board configuration, wiring diagrams, and connector pinout details for various amplifier integration scenarios. An essential reference for installation, operation, maintenance, and professional servicing of this high-fidelity active speaker.

Revox Agora B MKII/Slim Line Service Instructions
Service instructions manual for the Revox Agora B MKII and Agora B Slim Line loudspeaker systems. This workshop manual provides technicians with detailed MOS component handling procedures, functional descriptions supported by block diagrams, and comprehensive board-level schematics for both the basis board and power amplifier board. The manual includes alignment instructions, adjustment procedures for optimal performance, and complete technical specifications covering acoustic and electrical data. Text is presented in German, English, and French, making it accessible to service professionals across different regions. Essential reference for workshop maintenance and repair work on these integrated speaker amplifier systems.

Revox Autolocator C-Series Operating Instructions
Operating instructions for the Revox Autolocator C-Series tape locator system. This owner's manual covers control functions, tape transport controls, locator functions, and memory features for precise cue-point management on reel-to-reel tape machines. Details audio channel control, display indicators, and technical specifications essential for setup and daily operation. Includes device connection diagrams showing RS-232 and punch in/out connectors, plus dimensional drawings for installation planning.

Revox B126 Complete Circuit Diagram Schematic
Complete circuit schematic for the Revox B126 tuner, spanning two pages with detailed component layouts and signal interconnections across all major subassemblies. Covers the LCD display board (1769.253.00), left and right keyboard modules (1769.215.00 and 1769.202.00), mains power section (1769.450.00 220V), decoder board (1769.421.00), CD drive assembly (1769.117.00), and microprocessor PCB (1769.406.20). Essential service reference for board-level diagnostics, component-level repair, and troubleshooting interconnect faults.

Revox B126/B226-S Compact Disc Player Service Manual
Complete service manual and technical repair guide for the Revox B126/B226-S compact disc player. Covers functional descriptions, step-by-step disassembly procedures, alignment and calibration instructions, electrical schematics and component groups, comprehensive spare parts listing, and full technical specifications. Text provided in German, English, and French. Essential reference for technicians performing maintenance, troubleshooting, or component-level repairs on this professional-grade CD player. Table of Contents: - General - Disassembly Instructions - Functional Description - Alignment Instructions - Diagrams - Schemas - Spare Parts - Technical Specifications

Revox B150 Amplifier Operating Instructions
Operating instructions for the Revox B150 integrated audio amplifier—a comprehensive owner's manual covering installation, setup, and all connection options for tuner, CD player, tape decks, turntable, and auxiliary sources. Details the main and secondary control panel functions: speaker selection, headphone output, balance adjustment, and tone shaping with bass and treble controls. Includes troubleshooting guidance for error messages, overload conditions, and fault warnings to help identify and resolve common operational issues. Essential reference for installation, daily operation, and maintenance.

Revox B150 Complete Circuit Diagram
Complete circuit diagram and schematic documentation for the Revox B150, a professional-grade reel-to-reel tape recorder. This multi-page service technical reference includes detailed views of the rear panel, left and right sides, and front panel showing electronic circuitry with full component layouts and signal interconnections. Essential for technicians performing maintenance, repair, or circuit-level troubleshooting on this Swiss-built audio equipment. The diagrams show component placement and electrical routing across the deck's amplifier and transport control circuits.

Revox B160 Complete Circuit Diagram
Complete circuit diagram for the Revox B160 audio receiver, an essential service reference for technicians and experienced enthusiasts maintaining or troubleshooting this classic tuner-amplifier. The schematic documentation spans two pages and breaks down the entire signal path and power distribution architecture across multiple functional modules: the power supply unit (1726.235.00) showing voltage regulation and transformer-based DC generation, the microcomputer control board (1726.275.00) governing tuning and display functions, the FM tuner front-end unit (1726.255.00) with RF and IF circuitry, the optional RDS decoder unit (1726.280.20), and the audio output stages. Detailed component layouts and interconnection diagrams let you trace signal flow, identify component values and part numbers directly from the circuit board, and perform targeted repairs or subsystem verification. Invaluable for warranty work, restoration, or understanding the B160's design topology.

Revox B160 FM Tuner Operating Instructions
Operating instructions for the Revox B160 FM tuner, presented in German, English and French. This workshop manual covers complete setup—antenna and audio output connections, power-on procedures—and detailed operation of the main control panel, including STATION SCAN, P-TYPE SCAN, ENTER and DISPLAY functions. You'll find guidance on storing and retrieving preset stations, manual and automatic frequency tuning, frequency step configuration, and fine-tuning reception parameters for optimal signal quality. Warranty terms and full technical specifications are included.

Revox B200/200-S Operating Instructions
Operating instructions for the Revox B200/200-S audio/video controller, providing comprehensive guidance on setup and operation of this professional-grade control unit. Details installation procedures, connection configurations for standalone operation without EasyLine multi-room expansion, operating modes, and function control operation. Includes timer programming, language selection options, wiring diagrams, and complete technical specifications with connector pinouts. This manual serves as the primary reference for technicians and installers setting up and troubleshooting the B200/200-S control system.

Revox B203 Timer Controller - User Guide and Technical Documentation
User and technical manual for the Revox B203 Timer Controller, an interactive switcher-timer-PC interface designed for seamless integration with professional Revox audio equipment. Covers simplified operation in easy-mode switcher functionality, event timer programming supporting up to five independent scheduled events, and RS-232 serial PC connectivity for remote command and monitoring. Technical documentation includes system architecture diagrams, wiring schematics with complete connector pinout assignments, and detailed command and feedback format protocols for serial communication. This service manual serves technicians and operators who need to configure, operate, or troubleshoot the B203 in broadcast and studio environments.

Revox B203 Timer Controller Operating Instructions
Operating instructions for the Revox B203 Timer Controller, a precision timing device for professional studio and broadcast applications. Covers installation procedures, front and rear panel layout, configuration of Serial Link, RS232, B206 Transceiver compatibility, and parallel remote control wiring. Details battery installation and power setup, fundamental operation sequences, SELECT mode for device parameters, EXIT mode navigation, TIME mode for date and time configuration, and TIMER activation/deactivation routines. Includes specifications for the B203-C Consumer and B203-IND Industrial variants, with practical operating notes for system integration.

Revox B208 Remote Control Operating Instructions
Operating instructions for the Revox B208 infrared remote control, engineered to control the Revox Compact Disc Player 'The Signature'. This manual details all essential playback control functions: play, pause, next and previous track selection, direct track navigation via numeric keypad (0-9), disc scanning with the index function, forward and backward search, and integrated volume adjustment. Also includes battery replacement guidance—the remote requires a standard 9V battery (IEC R122) for operation.

Revox B209 Multi-Room System Installation Guide
Installation guide for the Revox B209 multi-room audio system. This workshop manual provides comprehensive technical documentation for deploying a complete multi-room installation, covering system architecture and design principles, detailed setup procedures for primary and secondary room configurations, connection panel specifications and MODE PRESET switch configuration, B208 remote control operation and integration, wiring schematics for the connector box assembly, B209 unit connection protocols, full multi-room system diagrams with worked examples of main room and remote room layouts, cable and bus specifications for audio and data distribution, I/O adapter selection and installation, power cube routing and connection, DIN connector pinouts and connector plate assembly details. Also includes accessory ordering information and equipment specification forms for parts procurement.

Revox B215 Cassette Tape Deck Service Instructions
Complete service manual for the Revox B215 cassette tape deck, covering maintenance, repair, and technical adjustment. This workshop manual includes detailed disassembly procedures, mechanical tape transport adjustments, and step-by-step audio alignment guidance. Sections on general information, circuit descriptions, and replacement parts equip technicians with the knowledge needed for routine servicing and troubleshooting. Comprehensive mechanical tape transport schematics and audio circuit schematics support hands-on repair work. Text presented in German, English, and French. Technical specifications and parts lists ensure accurate component identification during maintenance and restoration. Table of Contents: - General - Assembly - Laufwerkeinstellungen (Drive Settings) - Circuit Description - Audio Settings - General - Disassembly - Tape Transport Adjustments - Circuit Description - Audio Alignments - Generalities - Disassembly - Mechanism Adjustment - Circuit Description - Audio Adjustments - Tape Transport Schematics - Audio Schematics

Revox B215/B215-S Cassette Tape Deck Operating Instructions
Operating instructions for the Revox B215 and B215-S cassette tape deck, covering all essential functions for professional and home studio use. The manual walks through general setup, front and rear panel controls and connections, recording and playback techniques, both manual and automatic level setting for optimal tape performance, tape type selection for different formulations, and infrared remote control operation. Includes a block diagram of the audio section to aid in understanding signal flow. Text presented in German, English, and French, making this a valuable reference for multilingual operators. Whether setting up the deck for the first time or troubleshooting routine operation, this guide provides the technical depth expected from Revox/Studer professional equipment.

Revox B215/B215-S Cassette Tape Deck Operating Instructions
Operating instructions for the Revox B215 and B215-S cassette tape deck. This manual covers essential pre-use checks and mains connection setup, then walks through all playback and recording controls—from tape speed adjustment to real-time counter operation and address memory functions for precision cueing. Detailed guidance on the Dolby noise reduction system and headphone output configuration ensures optimal sound quality for both playback and recording. The manual explains balance adjustments, loop-mode operation for continuous replay, and includes a functional block diagram of the audio section along with complete technical specifications. An indispensable reference for anyone operating or troubleshooting these professional-grade cassette decks.

Revox B225 CD Player Service Manual
Service manual for the Revox B225 CD player, providing comprehensive technical documentation in both German and English. Covers operating instructions, detailed circuit descriptions, complete electrical schematics, spare parts list with component identification, and full technical specifications. Includes step-by-step adjustment procedures, precise component locations on circuit boards, and essential technical data for maintenance and repair work. An authoritative reference for technicians servicing the B225 transport mechanism, optical pickup assembly, and signal processing electronics. Table of Contents: - How to use this manual - DEUTSCH: Table of contents and chapter 1 to 4 in German language - ENGLISH: Table of contents and chapter 1 to 4 in English language - CHAPTER 5: Schematics - CHAPTER 6: Spare parts list - CHAPTER 7: Technical specifications
Revox B225 Compact Disc Player Operating Instructions
Operating instructions for the Revox B225 compact disc player, a precision audio component designed for high-fidelity playback. This manual covers initial setup, detailed control element identification, mains connection procedures, audio output configuration for integration into existing hifi systems, and step-by-step programming of your CD player. Includes technical specifications and clearly labeled front and rear panel diagrams with numbered control references to guide you through operation and connection. An essential reference document for owners setting up and maintaining this professional-grade compact disc player.

Revox B225 Compact Disc Player Operating Instructions
Operating instructions for the Revox B225 compact disc player, covering essential playback controls and advanced programming features. Part I details direct access functions including power, load, stop, play, next track, and repeat modes, alongside special controls for display selection, track and time navigation, pause, autostop, calibration tone output, and volume adjustment. Part II addresses programming capabilities: track and time information display, program entry and playback in custom track order, musical excerpt selection, loop, pause, alarm, and power-off functions, program page management, editing, and track deletion. Includes full remote control system documentation. Essential reference for daily operation and creative playlist assembly.

Revox B226 Compact Disc Player Operating Instructions
Operating instructions for the Revox B226 compact disc player. This owner's manual covers all front panel controls and their operation, along with connection procedures for amplifier hookup, power supply integration, and serial link configuration. The guide walks through disc insertion technique, music track selection methods, and a full range of special playback functions—search, pause, stop, autostop, and loop modes—explaining how each feature works in real-world listening scenarios. Display readout conventions are clarified so you understand what the player is communicating at any moment. Maintenance and care guidelines help preserve your discs and protect the player's optical components over years of use. Essential reference for owners who want to master all capabilities of this professional-grade CD transport.

Revox B226 Compact Disc Player Service Instructions
Complete service manual for the Revox B226 compact disc player, designed for technicians performing maintenance and repair work on this professional-grade CD transport. The documentation provides comprehensive disassembly procedures, detailed functional descriptions of the decoder PCB 1.769.420, servo PCB 1.769.400, and CD-drive board 1.769.116, along with step-by-step alignment instructions to restore accurate playback. Includes measurement points for audio performance verification, electrical circuit diagrams for troubleshooting and component-level repair, a complete spare parts list with part numbers, and full technical specifications. Essential reference for service workshops and experienced repair technicians working with Revox B226 players. Table of Contents: - General - Disassembly Instructions - Functional Description - Alignment Instructions - Schematics - Diagrams - Spare Parts - Technical Specifications

Revox B226-S Compact Disc Player Operating Instructions
Operating instructions for the Revox B226-S compact disc player, a professional-grade component designed for reliable daily use in studios and listening environments. This owner's manual covers complete installation and power connection setup, detailed control panel operation including play, pause, track navigation, and index selection functions. Explains specialized playback features such as scan mode, autostop, loop repeat, and programming modes for customized disc playback. Includes safety guidelines, optional infrared remote control B208 integration, and full technical specifications to support troubleshooting and system integration. Essential reference for understanding all operating modes and maintenance of this precision CD transport.

Revox B226-S Complete Circuit Diagram
Complete circuit diagram and schematic for the Revox B226-S compact disc player. This technical document covers all major circuit boards and subsystems: LCD display board (1.769.455.00), left and right keyboard control boards (1.769.215.00 and 1.769.202.00), mains power section rated for 220V operation, decoder board (1.769.422.00), CD-drive mechanism circuit, microprocessor PCB (1.769.407.20), and IC 16 EPROM (1.769.403.00). Includes transistor-level circuit detail throughout. Essential reference for technicians performing repairs, alignment, or in-depth troubleshooting on this model. Suitable as a workshop manual for authorized service centers.

Revox B240-S Preamplifier Operating Instructions
Operating instructions for the Revox B240-S preamplifier, presented in German, English, and French. This service manual details the functional differences between the B240-S and B250-S models, with comprehensive coverage of front and rear panel controls, input/output connections, and full technical specifications. Includes a quick-reference operating supplement for rapid troubleshooting and daily use. Essential documentation for owners and technicians working with Studer Revox professional audio equipment.

Revox B240-S Preamplifier Schematic Diagrams
Schematic diagrams for the Revox B240-S preamplifier, a comprehensive service and repair reference covering the complete signal path from input to output. This technical documentation includes the mains transformer circuit, primary and secondary distributor printed circuit boards, and detailed schematics for the input-output unit with discrete transistor amplifier stages serving all input channels: Phono MC, Phono MM, CD, Tape 2, Tape 4, Tuner, and recording inputs. Also covers the output unit, line amplifier assembly, and MOS component handling guidelines essential for safe servicing. Essential for technicians performing maintenance, troubleshooting, or component-level repairs on this classic preamplifier.

Revox B242 Complete Circuit Diagram
Complete circuit diagram for the Revox B242 stereo power amplifier, an essential service manual for technicians and repair professionals. The schematic provides detailed coverage of the mains power section, independent left and right channel signal paths, and all internal circuit boards including the power supply assembly (1.724.240), dual power amplifier boards for left and right channels (1.724.280), input amplifier board (1.724.260), and level meter board (1.724.250). Each section includes full component layout, value annotations, and interconnection routing, enabling thorough troubleshooting, component replacement, and circuit analysis. Indispensable for maintenance, repair, and restoration work on the B242.

Revox B250 Amplifier Operating Instructions
Operating instructions for the Revox B250 integrated amplifier. This manual guides you through installation and configuration of audio signal paths from tuner, CD player, tape deck, and phono turntable inputs, as well as connections to active speakers and monitor outputs. It details the main control panel layout and functions, auxiliary controls and adjustments accessible under the front cover flap, complete technical specifications, troubleshooting procedures, and a comprehensive button function reference with indexed device diagram for quick identification of all controls.

Revox B250 Complete Circuit Diagram
Complete circuit diagram for the Revox B250 audio amplifier. This multi-page schematic breaks down the transistor-based amplification stages and supporting circuitry across the rear panel, left and right channels, and front control section. Essential reference for service technicians, repair work, and detailed troubleshooting of the B250's audio path and control electronics. Ideal for anyone performing maintenance or diagnosing circuit-level faults in this classic Studer Revox amplifier.

Revox B250-S Amplifier Operating Instructions
Operating instructions for the Revox B250-S amplifier, presented in German, English, and French. This owner's manual covers everything needed to set up and operate the unit, from initial installation through daily use. The guide walks through configuring audio signal sources including tuners, CD players, tape decks, turntables, and active speakers, then explains all main control panel functions such as input selection and volume adjustment. You'll also find detailed coverage of auxiliary features like tone controls, speaker balance adjustment, and impedance settings. The manual includes a complete reference for every button and control function, connectivity diagrams for linking various audio components, technical specifications for the amplifier, and a troubleshooting section to help diagnose and resolve common issues.

Revox B250/B250-S/B150 Amplifiers Service Instructions
Service instructions for Revox B250, B250-S, and B150 amplifiers covering maintenance and repair. Includes detailed operating elements and connections for front and rear panels, assembly guidance, step-by-step disassembly procedures, functional descriptions, and complete operating instructions. Comprehensive front and rear panel diagrams with numbered components, internal chassis layout schematics, and full technical specifications. Essential workshop reference for technicians servicing these professional-grade audio amplifiers. Table of Contents: - General - Disassembly Instructions - Functional Description - Alignment Instructions - Schemata and Positions Lists - Diagrams and Positions Lists - Mechanical Spare Parts - Technical Specifications

Revox B251 Integrated Amplifier Operating Instructions
Operating instructions for the Revox B251 integrated amplifier, covering setup, installation, and daily operation. Details signal input selection, volume control, tone adjustment, balance settings, and display functions. Includes guidance on speaker connections, headphone outputs, and optional tape transport control via the B201 infrared remote system. This owner's manual provides everything needed to configure and operate the amplifier safely and effectively.

Revox B251 Service Instructions Manual
Service manual for the Revox B251 professional audio equipment. This workshop documentation covers front panel controls, monitor selector configuration, record output settings, and display operation, along with accessory installation procedures. Includes comprehensive disassembly instructions with technical illustrations, PCB component location diagrams, troubleshooting procedures, and full schematic drawings. Presented in German, English, and French. Essential reference for service technicians and experienced users maintaining this professional broadcast and studio audio equipment.

Revox B260 Complete Circuit Diagram
Complete circuit diagram for the Revox B260 audio receiver, an essential reference document for technicians troubleshooting or servicing this tuner amplifier. Includes detailed schematics for the mains transformer unit, power supply board, microcomputer control board, and FM tuner unit, along with all signal routing for stereo audio outputs (left and right channels), oscilloscope monitoring outputs, and serial line control connections. This document provides the full electrical schematic needed to understand signal flow, verify component values, and diagnose faults across all major subsystems of the B260.

Revox B260 FM Tuner Operating Manual
Operating manual for the Revox B260 FM tuner, covering everything needed to set up and operate this professional-grade receiver. Includes installation procedures, network connection setup, and safety specifications. Details the main control panel layout and functions, with dedicated coverage of the secondary control panel for tuning and transmitter selection. Also provides complete technical specifications, a practical troubleshooting section for common issues, and a comprehensive indexed reference of all button functions and device markings for quick navigation during daily use.

Revox B260-S FM Tuner Service Instructions
Service instructions manual for Revox B260, B260-S and B160 FM tuners. Covers operator controls, rear-panel connectors, step-by-step disassembly procedures, functional block descriptions, alignment and tuning adjustments, mechanical spare parts identification, component placement diagrams, and complete technical specifications. Text in German, English and French — essential reference for maintenance, repair and restoration work on these classic Studer Revox tuner models. Table of Contents: - Operator controls and connectors - Disassembly instructions - Functional description - Aligning instructions - Diagrams and positions lists - Mechanical spare parts - Technical specifications

Revox B261 Synthesizer FM Tuner Operating Instructions
Operating instructions for the Revox B261 Synthesizer FM Tuner, originally published in German. This owner's manual covers initial setup and familiarization with all front panel controls, automatic and manual tuning methods for locating FM broadcast stations, direct frequency input via the synthesizer controls, and fine tuning adjustments for precise reception. Detailed guidance on storing and recalling favorite stations in memory, assigning custom station names for easy identification, audio level storage functions, and complete memory reprogramming procedures. Essential reference for users seeking to master all tuning and memory management features of this classic FM receiver.

Revox B261 Synthesizer FM Tuner Service Manual
Service manual for the Revox B261 synthesizer FM tuner, providing comprehensive repair and maintenance guidance for this professional tuner. The documentation includes assembly and disassembly procedures available in German, English, and French. Technical content covers circuit descriptions, performance specifications, complete schematics, and a detailed spare parts list. Coverage encompasses the power supply unit, RF amplifier, IF amplifier, demodulator, stereo decoder, audio section, microcomputer unit, command unit with keyboard, display and meters, and remote control receiver. This workshop manual serves as an essential reference for technicians performing service work, component replacement, and troubleshooting on the B261 platform. Table of Contents: - German: Table of contents and chapters 1 to 4 of the German text - English: Table of contents and chapters 1 to 4 of the English text - French: Table of contents and chapters 1 to 4 of the French text - Chapter 5: Schematics - Chapter 6: Spare parts list - Chapter 7: Technical specifications in German, English and French

Revox B285 B286 Receiver Tuner Service Instructions
Service manual for the Revox B285 tuner-amplifier receiver and B286 tuner-preamplifier. Provides technicians and experienced users with complete guidance for maintenance and professional repair work. Covers systematic disassembly procedures, functional block descriptions, precise alignment and calibration instructions, full electronic schematics, comprehensive spare parts lists, and detailed technical specifications. Documentation supplied in German, English, and French. Table of Contents: - General - Disassembly Instructions - Functional Description - Alignment Instructions - Schematics - Diagrams - Spare Parts - Technical Specifications - Technical Characteristics

Revox B286 Tuner/Preamplifier Operating Instructions
Operating instructions for the Revox B286 tuner/preamplifier, a comprehensive owner's manual covering setup, daily operation, and technical reference. Details connections and signal routing, transmitter and frequency band selection, automated tuning procedures, preset memory programming for storing favorite stations, tone and input controls, and complete technical specifications. Includes a detailed control panel overview with button and knob functions, display readout interpretation, and step-by-step operation for FM and AM reception. Essential reference for configuring and operating this integrated tuner/preamplifier unit.

Revox B291 Turntable Operating Instructions
Operating instructions for the Revox B291 turntable, providing comprehensive guidance on setup, configuration, and daily operation. Covers transport securing procedures, audio connections, mains connection, turntable operation including speed selection and special functions, infrared remote control operation, and detailed technical specifications. Includes clearly labeled diagrams of the front and rear panels with numbered element descriptions to aid in identifying controls and connections. Essential reference material for proper operation and maintenance of this professional-grade turntable.

Revox B291 Turntable Service Instructions
Service instructions manual for the Revox B291 turntable, a professional-grade reference turntable. This workshop manual covers general information, complete disassembly and reassembly procedures, mechanical adjustments and checks essential for maintaining proper operation, detailed functional description of the drive system and tonearm components, and electrical measurements and alignment procedures. Includes full technical specifications for the B291 turntable drive system and compatible tonearm options. An essential repair reference for technicians servicing this high-performance deck. Table of Contents: - General - Disassembly - Mechanical Adjustments and Checks - Functional Description - Electrical Measurements and Alignments - Schemata - Diagrams - Schemas - Spare Parts - Pieces of Exchange

Revox B36 Series B Electronic Schematic Diagram
Complete electronic schematic diagram for the Revox B36 Series B tape recorder. This service documentation details the tube-based amplifier circuits, preamplifier stages, power supply topology, and control electronics with all component values clearly marked. Includes a component legend and tube position guide for troubleshooting and repair work. Essential reference for technicians servicing or restoring this professional reel-to-reel tape machine.

Revox B36 Tape Recorder User Manual
Original German-language user manual for the Revox B36 tape recorder, a professional-grade reel-to-reel machine. Covers complete operating procedures including tape threading, transport controls, recording and playback functionality, speed selection between 9.5 and 19 cm/sec, and detailed tone arm adjustment. The manual includes a comprehensively labeled front panel diagram identifying all 17 control elements and adjustment knobs for quick reference during operation. Technical specifications detail microphone and radio input capabilities, play duration ratings, tube complement information, and essential maintenance routines to keep the machine in reliable working condition. A valuable reference for operators and technicians maintaining or restoring this classic Swiss-made recorder.

Revox B710 MKI/II Cassette Tape Deck Service Manual
Comprehensive service manual for the Revox B710 MKI and MKII microcomputer-controlled cassette tape deck. This workshop manual covers complete disassembly and reassembly procedures, tape transport mechanism adjustments, audio signal path calibration, detailed circuit descriptions with full schematics, and an itemized parts list. Technical specifications, preventive maintenance guidelines, and troubleshooting procedures are included to support both routine servicing and in-depth repair work. Essential reference for technicians maintaining these professional-grade tape decks. Table of Contents: - General - Tape transport controls - Controls for playback mode - Connectors - Front panel - Rear panel - Connector pin assignment - Care and maintenance of the recorder - Tools, setting gauges and measuring instruments required for the maintenance of an B710 recorder - Tape transport adjustments - Audio adjustments - Disassembly - Removing the top cover - Removing the bottom cover - Removing the cassette tape transport cover - Removing the side covers - Removing the front panel - Removing the top crossbar - Removing the complete tape transport - Removing the keyboard and display PCB's - Removing the toggle switches - Removing the PEAK READING METER PCB - Removing the MIC/PHONES PCB 1.710.350/351 - Removing the rear cover - Removing the connector panel cover - Unfastening the spooling motor cover - Tape transport adjustments - Tools and aids - Preliminary steps and checks - Check the pinch rollers - Checking the pinch roller arms - Checking the position of the centering pin - Checking the dash pot - Checking the pivoting carrier - Adjusting the pivoting carrier - Adjusting the soundheads and the pinch rollers - Preparatory steps - Adjusting the soundheads - Adjusting the erase head - Adjusting the pinch rollers - Adjusting the pinch solenoid and the dash pot - Capstan motors

Revox B710 MKII User Manual
Complete user manual for the Revox B710 MKII cassette tape deck and recorder, serving as the definitive owner's manual for this professional-grade audio equipment. The guide delivers comprehensive operating instructions essential for proper use and maintenance of the machine. Safety guidelines and operating precautions are clearly outlined, including temperature and humidity requirements alongside proper installation procedures to ensure reliable long-term performance. Technical specifications document the B710 MKII's dual-motor tape transport system featuring the dual capstan drive mechanism, engineered to deliver exceptional speed stability and mechanical precision in professional recording environments. Warranty terms and regional service support information are provided for Belgium, West Germany, France, Switzerland, and Austria. Detailed recommendations for packaging and safe transportation protect the device during shipment. A comprehensive block diagram illustrates the tape transport mechanism and control systems, offering clear insight into the internal architecture of this professional audio recording equipment. This workshop manual serves as an indispensable reference for users operating, maintaining, and troubleshooting the B710 MKII.

Revox B739 Microcomputer Controlled Synthesizer FM Tuner Preamplifier User Manual
User manual in German for the Revox B739 microcomputer-controlled FM tuner synthesizer with integrated preamplifier. This comprehensive owner's manual covers all operational aspects of the receiver, including detailed programming instructions and station memory access, automatic and manual tuning, tone shaping and equalization, volume and balance adjustment, filter setup, output and headphone connections, and antenna installation. Also included are complete technical specifications, battery charging procedures, and functional block diagrams for troubleshooting and maintenance.

Revox B740 Stereo Power Amplifier Operating Instructions
Operating manual for the Revox B740 stereo power amplifier, a professional-grade audio component from the renowned Swiss manufacturer. This comprehensive service and repair reference covers installation procedures, detailed operating instructions, complete technical specifications, and essential safety guidelines. The manual addresses all key operational aspects: input and output configurations, loudspeaker protection systems, dual-threshold overload protection circuitry, input level attenuators, headphone output connectivity, peak program metering, and proper installation methodology. Includes a full system diagram illustrating typical interconnections with complementary Revox components—the B739 preamplifier, B710 tuner, B77 tape recorder, B795 turntable, RH310 headphones, and SYMBOL B speaker systems—enabling technicians and users to understand the amplifier's role within a complete audio chain.

Revox B740 Stereo Power Amplifier Service Manual
Comprehensive service and repair manual for the Revox B740 stereo power amplifier, an essential workshop reference for technicians maintaining this 300W-per-channel professional-grade amplifier. The manual provides step-by-step disassembly guidance, including safe procedures for filter capacitor discharge, power stage removal, front panel takedown, meter lamp replacement, and fuse service. Covers voltage selector adjustment for different mains supply configurations. Detailed technical specifications document the amplifier's 20Hz–20kHz frequency response and rated output into 4-ohm loads. Extensive circuit descriptions explain the fail-safe protection architecture and peak program meter amplifier design. Electrical adjustment procedures guide setup and calibration, with clear specifications for required test equipment. Performance measurement instructions cover frequency response testing, harmonic distortion analysis, signal-to-noise ratio verification, and crosstalk attenuation checks—critical for validating amplifier performance after service or repair. Includes dimensional drawings and component layout diagrams for both front and rear panels, plus detailed part identification to support accurate component location and replacement during maintenance or troubleshooting. Table of Contents: - General - Technical data - Dimensions - Dismantling - Removal of top cover - Discharging the filter capacitors - Removal of power stages - Removal of front panel - Lamp replacement for meter illumination - Replacement of main fuse - Adjustment of voltage selector - Replacement of power supply fuses - Removal of output stages and preamplifier circuit boards - Removal of power supply - Removal of meter amplifier - Removal of filter capacitor - Removal of rotary switches - Circuit description - Description of block diagram - Description of fail-safe circuits - Description of peak program meter amplifier - Electrical Adjustments - Test equipment - Adjustment of stabilized supply voltages - Adjustment of quiescent current - Level check - Calibration of the peak program meters - Instructions for measuring the most important performance data - Frequency response check, without load - Frequency response check, with load - Harmonic distortion - Signal to noise ratio - Crosstalk attenuation - Diagrams

Revox B750 Integrated Stereo Amplifier Operating Instructions
Operating instructions for the Revox B750 integrated stereo amplifier—a comprehensive owner's manual for this classic high-fidelity component. Covers all front panel controls: volume, bass, treble, presence, and balance adjustments, along with tone compensation. Details five operating modes (stereo, reverse, left, right, and mono) and their practical applications across different listening scenarios and source types. Explains input and output connectors, filter settings, speaker selection, and tape monitoring for evaluating recorder performance. Includes technical specifications, phono cartridge matching guidance, and component pairing recommendations to optimize your system. Everything needed for setup and daily operation.

Revox B750 Integrated Stereo Amplifier Service Manual
Service manual for the Revox B750 integrated stereo amplifier—a comprehensive workshop reference for technicians servicing and maintaining this professional audio component. Contents include operating principles, switching logic and volume control, bass and treble tone controls, front-panel tape monitoring and copying functions, rear-panel connector specifications, detailed technical specs, systematic dismantling procedures, complete circuit descriptions and schematic diagrams, electrical adjustment and calibration procedures, and a full parts list for component ordering.

Revox B750 Schematic Set of Schematics
Complete schematic set for the Revox B750 amplifier, providing all electrical diagrams needed for service, repair, and technical maintenance. Covers power supply units in both MK I and MK II versions, input stage modules ED1 and ED2 with dedicated amplifier and impedance boards, phono preamplifier section, integrated filter and balance amplifier unit, tone control circuitry, tape monitor board, protection circuit topology, and power amplifier output stages in MK I and MK II variants. Includes block diagram for system overview and detailed wiring diagrams with full component identification and values. Essential reference for technicians performing troubleshooting, alignment, or component-level repair on this classic solid-state amplifier.

Revox B760 Digital FM Tuner - Operating Instructions
Operating instructions for the Revox B760 Digital FM Tuner with frequency synthesizer—a comprehensive owner's manual and workshop reference covering operation, setup, and maintenance of this precision tuner. Details manual tuning, station memory and preset recall, 25 kHz frequency offset capability, signal strength metering, muting circuits, Dolby FM decoding, and output level controls for audio system integration. Includes functional diagrams showing control layout and connection procedures, plus step-by-step guidance for optional Dolby decoder installation. Essential troubleshooting and maintenance reference for users and technicians.

Revox B760 Digital FM Tuner Service Manual
Service manual for the Revox B760 digital FM tuner, a professional-grade workshop repair guide with complete technical specifications, operating instructions, and detailed circuit descriptions. Includes alignment procedures, test equipment requirements, and comprehensive measurement instructions with schematic diagrams and full parts list. Covers FM tuning range 87.00–107.975 MHz with 25 kHz channel separation, integrated Dolby noise reduction, stereo decoder functionality, and programmable station memory. Essential reference for technicians performing maintenance, troubleshooting, or restoration work on this precision tuner. Table of Contents: - General - Switching on/station selection - How to operate the station memory and the 25 kHz offset - DOLBY circuit, level control and outputs - Connectors on the rear panel - Technical data - Dimensions - Dismantling - Removal of top cover - Removal of bottom plate - Removal of side panels - Removal of operating section - Removal of front panel - Replacement of indicator lamps - Replacement of meter illumination - Removal of VU-meters - Replacement of main fuse - Replacement of secondary fuses

Revox B77 Dolby-B-System Service Manual
Comprehensive service manual for the Revox B77 stereo tape recorder, covering the integrated Dolby-B noise reduction system. This workshop manual provides detailed guidance on special variants, full technical specifications, step-by-step dismantling procedures, and complete mechanical and electronic component layouts. Includes dedicated sections on power supply circuits, electrical adjustment protocols, and calibration procedures essential for proper tape transport and audio performance. Features precision schematics for critical circuit modules: Dolby input amplifier (1.177.222), record processor (1.177.234), record amplifier (1.177.235), oscillator (1.177.240), reproduce amplifier (1.177.254), and monitor amplifier (1.177.260). Contains the complete audio block diagram for system-level understanding and troubleshooting. A technical reference essential for service technicians maintaining or repairing the B77 platform. Table of Contents: - 9.1.6.A Checking the DOLBY input amplifier - 6.2 - 6.3.1 - 6.3.2 - 6.3.3 - 6.3.4 - 6.4.1 - 6.4.4 - 6.4.5 - 6.4.6 - 6.4.7 - 6.4.8 - 6.4.9 - 9.1.6.B Replay level off calibration tape - 6.4.11 - 6.4.12 - 6.4.13 - 6.4.14 - 6.4.15 - 6.4.16 - 9.1.6.C Recording level - 6.4.18 - 6.4.19 - 6.5.1 - 9.1.6.D Weighted and unweighted noise measurement - 6.5.3 - 6.5.4 - 6.5.5 - 6.5.6 - 6.5.7

Revox B77 MKI & MKII Reel-to-Reel Troubleshooting Manual
Complete service and troubleshooting manual for the Studer Revox B77 MKI and MKII stereo reel-to-reel tape recorder. This workshop manual covers nine comprehensive sections: general information and specifications, complete disassembly procedures, tape transport mechanism operation and adjustment, electronic circuits and components, electrical calibration and measurement protocols, full schematic diagrams, detailed parts list with part numbers, and documentation of special configuration versions. The manual includes thorough safety guidance addressing electrical hazards, emergency response procedures, and routine maintenance precautions. Equipment installation, operation, and proper disposal are covered, alongside specialized sections on electrostatic discharge (ESD) protection, electromagnetic compatibility (EMC) compliance, and CE marking standards. Front and rear panel diagrams clearly identify all controls, switches, connectors, and signal paths, making this troubleshooting guide essential for both routine service and advanced technical diagnostics of this professional-grade tape recorder. Table of Contents: - General - Technical specifications - Dismantling - Tape transport mechanism - Electronics - Electrical adjustments - Set of schematics - Parts list - Special Versions

Revox B77 MKI & MKII User Manual
Complete user manual for the Revox B77 MKI and MKII professional reel-to-reel tape recorders from Studer Revox. This 83-page service and owner's manual covers setup, operation of recording and playback modes, control panel layout, and essential configuration for optimal performance of these renowned machines. The guide details input and output connections, connection procedures, adjustment techniques, and routine maintenance requirements to keep your tape recorder in peak working condition. Written for studio professionals, audio engineers, and serious tape enthusiasts, this workshop reference provides clear, practical instructions for maximizing the B77's technical capabilities across demanding recording and playback applications. Whether operating in a professional studio environment or maintaining analog audio equipment, this manual serves as your complete troubleshooting and operational reference for both MKI and MKII variants of this legendary Revox recorder.

Revox B77 Set of Schematics
Complete electronic schematics for the Revox B77 reel-to-reel tape recorder, essential for technicians performing repair, maintenance, or alignment work on this professional-grade machine. This comprehensive schematic set documents the power supply circuits (1.177.310, 1.177.311), tape drive control system (1.177.315, 1.177.315 ED2), substitution logic board (1.177.316), remote control interface (1.128.040), tape motion sensing (1.177.320), speed regulation (1.177.325/326), variable speed control module (1.128.045), audio interconnection board (1.177.210), and input amplifier stages (1.177.220). Each schematic provides detailed circuit diagrams with precise component values and reference designations, enabling accurate troubleshooting and component-level repair work on all major subsystems. An invaluable reference for workshop technicians and experienced users maintaining the B77's mechanical and electronic performance.

Revox B77 Special Versions - Set of Schematics
Complete set of wiring diagrams and schematics for all Revox B77 special versions. Coverage includes the B77 DIA slide synchronization kit with full installation procedures and dedicated slide synchronizer circuit topology; B77 SYNC variant with audio block diagrams, function diagrams, and detailed audio interconnection board layouts including SYNC input amplifier circuits and alternate amplifier configurations; B77 AUTO model with AUTO-Start wiring implementation, interconnection board schematics, and dedicated AUTO-Start circuit boards; B77 HS versions with record amplifier schematics optimized for multiple tape speeds; and B77 LS/SLS models with record and reproduce amplifier variants, oscillator circuits, and speed control regulation. Detailed circuit diagrams, relay schematics, and comprehensive component part lists identify all transistors, resistors, capacitors, diodes, and integrated circuits throughout each configuration. Original technical documentation in German and English with complete electrical specifications — an essential repair and maintenance reference for technicians servicing these professional tape recorder variants. Table of Contents: - Installation of Slide Sync Kit - Slide Synchronizer 1.177.270 - Audio Block Diagram / B77 SYNC - Function Diagram / B77 SYNC - Audio Interconnection Board (with SYNC-wiring) 1.177.210 - SYNC-Input Amplifier 1.177.223 - SYNC-Amplifier (3.75–7.5 ips) 1.177.275 - SYNC-Amplifier (NAB 7.5–15 ips) 1.177.285 - SYNC-Amplifier (IEC 7.5–15 ips) 1.177.286 - AUTO-Start Wiring - Audio Interconnection Board (with AUTO-wiring) 1.177.210 - AUTO-Start Board 1.177.276 - Record Amplifier (NAB 7.5–15 ips) 1.177.232 - Reproduce Amplifier (NAB 7.5–15 ips) 1.177.252 - Record Amplifier (IEC 7.5–15 ips) 1.177.233

Revox B77 Stereo Tape Recorder Operating Instructions
Operating instructions manual for the Revox B77 stereo tape recorder. This trilingual documentation in German, English, and French provides comprehensive guidance on all aspects of operating this professional-grade reel-to-reel machine. Coverage includes tape transport controls, recording and playback functions, monitor panel controls, volume adjustment, and input level settings. The manual offers detailed descriptions of every operating element and electrical connector, helping users understand the full range of the B77's capabilities. Additional sections address warranty conditions, proper equipment handling procedures, and packing recommendations to protect the recorder during transport and storage. An essential reference for owners and technicians working with this classic tape recorder.

Revox B780 Microcomputer Controlled Synthesizer FM Receiver User Manual
User manual for the Revox B780, a microcomputer-controlled FM synthesizer receiver that combines precise radio tuning with integrated amplification. Covers initial setup, speaker and tape deck connections, and detailed operation of the front panel controls including the microprocessor-driven automatic station tuning and memory storage system. Includes guidance on filter configuration, volume and balance adjustment, and operation of the integrated amplifier section. Essential reference for owners seeking to understand and fully utilize all operational features of this advanced FM receiver.

Revox B780/B739 Microcomputer Controlled Synthesizer FM Tuner Preamplifier Service Instructions
Comprehensive service manual for the Revox B780/B739 microcomputer-controlled FM synthesizer tuner preamplifier. This workshop manual covers complete disassembly procedures, calibration and adjustment instructions, detailed function descriptions, full electronic schematics, component parts lists, and complete technical specifications. Trilingual documentation in German, English, and French provides thorough guidance for technicians performing maintenance, troubleshooting, and repair work on this precision audio component. Includes all information necessary for qualified service personnel to diagnose faults, replace components, and restore the unit to factory specifications. Table of Contents: - General - Index to the operating controls - Tuner section - Amplifier/preamplifier section - Connector panel - Connector panel B780 - Connector panel B739 - Socket layouts - Disassembly - Removing the top cover plate - Removing the bottom cover plate - Removing the side covers - Removing the heat sink incl. power stage PCB (B780 only) - Removing the rear cover (B739) - Removing the terminal board cover (B739) - Removing the operating panel - Removing the front panel - Replacing the illumination lamp of signal strength meter - Replacing the signal strength meter - Replacing the power switch - Replacing the power line fuse - Replacing the power supply fuse - Description of Functions - Tuner section - Balance-to-unbalance transformer (Balun) - RF-Input section 1.166.100 - IF amplifier 1.166.120 - FM demodulator 1.166.130 - Stereo decoder 1.166.150 - Frequency synthesizer and local oscillator - Logic section - Microcomputer PCB 1.780.260 - Audio section - Meter circuit and de-emphasis PCB 1.780.155 - Audio connection unit 1.780.145 - Preamplifier 1.780.205 - Tone control PCB 1.780.210 - Power amplifier PCB 1.780.105 - Dolby processor PCB 1.166.400 - Power supply 1.780.110

Revox B790 Turntable Operating Instructions
Operating instructions for the Revox B790 direct drive turntable, a precision instrument designed for accurate playback of vinyl records. Covers unpacking, installation, and connection procedures, along with comprehensive guidance on basic operation including speed selection at 33.33 and 45 rpm, playing records, and variable speed operation for cueing and creative playback control. Details tone arm adjustments and cartridge positioning to optimize tracking and sound quality. Includes a complete index of operating controls and electrical connectors with detailed descriptions of all push buttons, displays, and control functions. Essential reference material for anyone setting up or operating this professional-grade turntable.

Revox B790 Turntable Service Manual
Complete service manual for the Revox B790 direct-drive turntable, covering everything needed to maintain, troubleshoot, and repair this Swiss-made precision deck. Detailed sections on operating elements, technical specifications, mechanical and electrical adjustments, circuit descriptions with full schematics, and comprehensive parts list. Includes practical guidance on disassembly and reassembly procedures, cartridge alignment and tracking force setup, motor control calibration, tonearm geometry and anti-skate adjustment, and functional verification. Essential reference for technicians servicing high-end analog playback equipment. Table of Contents: - General - Operating elements - Technical Data - Dimensions - Dismantling - Removal of dust cover - Removal of platter - Removal of chassis - Removal of turntable motor - Removal of tonearm support - Removal of tonearm cover - Removal of stylus - Removal of operating control assembly - Replacement of mains fuse - Re-assembly

Revox B791 Direct Drive Turntable Operating Manual
Operating manual for the Revox B791 direct drive turntable, a high-quality audio playback system from Studer Revox. This comprehensive guide provides step-by-step assembly instructions with numbered diagrams, detailed control descriptions covering the power button, dual speed selection (33 and 45 RPM), tone arm height and tracking force adjustments, and all playback controls. The manual includes complete technical specifications, important safety warnings, warranty coverage details, and routine maintenance procedures to keep the turntable in optimal condition. Originally written in German, it serves as an essential reference for operating and maintaining this professional-grade turntable.

Revox B791/B795 Direct Drive Turntable Service Instructions
Service instructions for the Revox B791 and B795 direct drive turntables, essential for technicians performing maintenance, repair, and alignment of these high-end professional turntables. Covers operator controls, physical dimensions, and complete technical specifications. Includes mechanical adjustment and check procedures for cartridge setup, stylus force calibration, and tonearm tracking control tuning. Provides step-by-step disassembly and reassembly procedures, electrical adjustment protocols, and platter motor specifications. Details functional descriptions for both models, drive belt maintenance requirements, and all adjustments needed to restore these turntables to factory specification. An essential workshop manual and repair reference for service technicians. Table of Contents: - Operator Controls - Dimensions - Technical Data B791 - Technical Data B795 - Cartridges - Other cartridges tested for suitability - Disassembly - Removing the dust cover - Removing the platter - Removing the tone arm cover - Removing the stylus assembly - Removing the chassis - Removing the platter motor - Removing the tone arm support - Removing the operating rail - Replacing the power fuse - Reassembly

Revox B795 Direct Drive Turntable User Manual
User manual for the Revox B795 direct drive turntable. Contains detailed assembly instructions, control and connection documentation, setup procedures for both 33 and 45 rpm operation, tonearm adjustment guidance, automatic function operation, maintenance instructions, and complete technical specifications. Includes setup diagrams. German language original documentation.

Revox Bauserie 36 Service Instruction Manual
Service instruction manual for the Revox Bauserie 36 series tape recorder, covering all variants from the A36 through F36 models. This comprehensive workshop manual details general specifications, mechanical and electronic components, the tape transport system architecture, brake and drive mechanisms, alignment and installation procedures, maintenance protocols, troubleshooting procedures, and fault diagnosis. An essential reference for technicians performing repairs, adjustments, and preventive maintenance on these professional-grade reel-to-reel machines.

Revox C-Series Autolocator Complete Circuit Diagram
Complete circuit diagram and technical reference documentation for the Revox C-Series Autolocator. This workshop manual covers the keyboard assembly schematic (1.328.236.00), display board diagram (1.328.237.00), and HP board schematic (1.328.238.20) with full PCB layouts. Includes detailed component specifications, integrated circuit configurations, key and LED assignments across all boards, plus the remote control board schematic. Wiring diagrams throughout show exact component values and IC pinouts, essential for troubleshooting, repair, and maintenance of the autolocator electronics. A technical resource for service technicians working on Revox tape machine control systems.

Revox C221 CD Player - Operating and Service Manual
Operating and service manual for the Revox C221 CD player, covering technical quick reference, operation instructions, maintenance and repair procedures, functional description, test points and alignment, and audio performance measurements. This workshop manual provides comprehensive guidance for technicians and experienced users performing routine maintenance or service-level diagnostics on this professional-grade compact disc player. Trilingual documentation in German, English, and French.

Revox C270 Tape Recorder Operating Instructions
Operating instructions for the Revox C270 reel-to-reel tape recorder. This manual covers complete installation and setup, power control, tape speed selection with SLOW/FAST modes and variable speed adjustment, proper tape threading using DIN, NAB, and AEG adapter configurations, playback and recording operations, monitor speaker setup, and advanced features including the LOCATOR function for precise tape cueing, LOOP mode for continuous playback, T-DUMP editing capability, and automatic recording start functionality. Includes comprehensive technical specifications and detailed control layout diagrams for quick reference during operation.

Revox C270 Tape Recorder Service Manual
Comprehensive service manual for the Revox C270 professional tape recorder, providing technicians with detailed repair and maintenance guidance. Covers MOS component handling protocols, step-by-step disassembly procedures, and functional descriptions of both transport and audio sections. Includes precision alignment instructions with specified tools and measurement procedures essential for restoring optimal performance. Features mechanical spare parts references with connector diagrams and component position lists for accurate identification during service work. Original documentation presented in German, English, and French. Table of Contents: - General information - Disassembly Instructions - Functional Description - Alignment Instructions - Technical Data - Generalities - Disassembly Procedure - Functional Descriptions - Operating Instructions - Technical Characteristics - Schematics and Position Lists - Diagrams and Position Lists - Mechanical Spare Parts

Revox C270 Time Code Service Manual
Comprehensive service manual for the Revox C270 Time Code transport system. This workshop documentation provides technicians with complete coverage of general information, operating principles, and functional modes specific to the C270 TC configuration. Detailed sections address power-up procedures, playback and record operation, troubleshooting methodology, and full technical specifications. The repair guide includes precise instructions for TC REC/PB head adjustment and complete alignment procedures for both the microprocessor control board and analog board 1.777.101.01/02. Mechanical alignment verification steps, testing protocols, and graduated adjustment levels for analog board components ensure accurate restoration and maintenance. Essential reference for service technicians maintaining professional broadcast and mastering tape recorders.

Revox C270 Timecode Adapter - Installation & Testing Guide
Installation and testing guide for the ASC C270 centre track timecode adapter, designed for Revox tape recorder integration. This workshop manual provides comprehensive instructions for component handling with proper MOS ESD precautions, detailed timecode head mounting procedures, guard band erase head replacement, electronics board installation into the recorder chassis, and connector panel modifications to accommodate timecode functionality. Includes all necessary wiring diagrams, mechanical assembly drawings, and specifications for required tools and test equipment needed to complete the installation and verify correct operation.

Revox C274/C278 Logging Service Instructions
Service manual for the Revox C274/C278 Logging tape recorder, a professional-grade analog recording and playback system. This workshop repair guide provides comprehensive maintenance and troubleshooting procedures for both the playback and logging versions. Covers handling protocols for MOS-sensitive components and electrostatic discharge precautions essential during servicing. Includes detailed disassembly procedures, functional descriptions of record and playback circuits, alignment instructions for precise tape head positioning and audio parameters, and complete technical specifications. Documents all front and rear panel controls with functional diagrams, making this an essential reference for technicians performing repairs, maintenance, or routine adjustments on these compact cassette logging systems. Table of Contents: - General - Disassembly Instructions - Functional Description - Alignment Instructions - Technical Specifications - Diagrams and Positions Lists - Mechanical Spare parts

Revox C279 Mixing Console Operating Instructions
Operating instructions and user manual for the Revox C279 mixing console. This workshop guide provides complete setup procedures, connection diagrams for microphones and audio sources, and detailed control descriptions to help you configure the console for various recording and monitoring tasks. Includes practical application examples covering single microphone recording, mixed stereo recording, and studio monitoring configurations, making it an essential reference for both setup and day-to-day operation of this professional mixing console.

Revox C279 Mixing Console Service Instructions
Service manual for the Revox C279 mixing console, covering the full scope of technical maintenance and repair. Includes safety guidelines, detailed disassembly and reassembly procedures, functional description of the mixer architecture, alignment and calibration instructions, expansion unit configuration, complete electrical schematics, spare parts lists with component references, and comprehensive technical specifications. Multilingual content in German, English, and French throughout. An essential workshop reference for technicians servicing this professional-grade mixing desk. Table of Contents: - General - Disassembly Instructions - Functional Description - Alignment Instructions - Expansion Unit - Diagrams - Spare Parts - Technical Specifications

Revox C36 Tape Recorder User Manual
User manual for the Revox C36 tape recorder, a professional-grade open-reel machine covering everything needed to operate and maintain the unit. Includes detailed technical specifications, complete operating instructions, and step-by-step tape threading procedures. Explains speed selection, recording input options including radio tuner, microphone, and line inputs, as well as playback controls and onboard mixing capabilities. Features comprehensive control panel descriptions so you understand every function, plus essential safety information for 110V, 125V, 145V and 220V power supply versions. A thorough workshop reference for anyone setting up or troubleshooting this classic tape recorder.

Revox C88 Cassette Deck Operating Instructions
Operating instructions for the Revox C88 cassette deck, covering chassis numbers 0101 to 1200 and 1201 to 2000. This manual details all front and rear panel controls, operating elements, and connector specifications, along with maintenance procedures necessary for proper setup and day-to-day operation of this professional-grade audio recording and playback machine. Includes guidance on cassette handling, transport mechanisms, and routine care to maintain optimal performance. An essential reference for owners and technicians working with this classic Revox model.

Revox CD36 Tape Recorder User Manual 1962
User manual for the Revox CD36 tape recorder, a classic 1962 reel-to-reel machine. This owner's manual covers everything needed to operate and maintain the unit: technical specifications, step-by-step operating instructions, device setup and preparation, remote control operation, recording and playback procedures, and maintenance guidelines. Includes detailed labeled diagrams and schematics of the tape recorder chassis and control panel layout.

Revox CDC 100 CD Changer Operating Manual
Operating manual for the Revox CDC 100 CD changer, a professional 100-disc autochanger designed for broadcast and installation use. This documentation covers warranty terms, initial setup and installation procedures, proper CD handling and storage in the magazine, AC power connection specifications, magazine loading instructions, network connectivity and control interface details, digital audio output specifications, technical specifications including dimensions and rack mounting configuration, and routine maintenance guidance. The manual is presented in German and English. Essential reference for technicians operating, installing, or maintaining this professional-grade CD autochanger system.

Revox CDC 100 CD-Changer Service Manual
Complete service manual for the Revox CDC 100 CD-changer, covering the full range of technical information needed for diagnosis, adjustment, and repair. Includes detailed specifications, operational description, block diagram, and complete exploded parts view with parts list. Features comprehensive electrical schematics with component locations and a full listing of all electronic parts. Contains critical safety guidance for laser operation and step-by-step adjustment procedures for slit position, slit width, 4-bit comparator level, PLL adjustment, tracking offset, and focus offset. This workshop manual serves as the authoritative reference for technicians performing maintenance, calibration, and troubleshooting on the CDC 100 system.

Revox Code 1655 Repeat Remote Control Service Sheet
Service documentation for the Revox Code 1655 repeat remote control (5m cable) used with Revox tape recorders. This workshop manual provides a mechanical assembly diagram showing the physical layout and construction of the remote unit, a complete electrical schematic detailing transistor and capacitor placement, component layout reference, and a detailed PCB diagram with color-coded connection points for accurate assembly and troubleshooting. Includes a comprehensive parts list with full component specifications and values. Text in German, French, and English.

Revox D36 Stereo Tape Recorder User Manual
User manual for the Revox D36 stereo tape recorder, a comprehensive technical reference for operating and maintaining this professional-grade tape machine. The manual covers device setup, mechanical operation, spool loading procedures, and detailed recording and playback configuration. Technical specifications include tape speeds, frequency response characteristics, tube complement, and complete electrical specifications. Features a labeled control panel diagram with component callouts for quick reference during operation and troubleshooting. Essential reading for users of this classic high-fidelity tape transport system.

Revox D88 Cassette Recorder Service Instructions
Service manual for the Revox D88 compact cassette recorder, covering both table-top and panel-mount deck configurations. Provides detailed reference specifications, pin assignments, power supply schematics, and complete maintenance procedures for the tape transport, control logic, audio amplifier stages, and power electronics. Includes functional descriptions of the tape deck mechanics, control system architecture, and audio signal path, along with circuit diagrams for troubleshooting the control logic and audio sections. Essential reference for technicians performing routine maintenance, adjustments, or repairs on D88 systems. Table of Contents: - General information - Reference description - Tape deck versions - Accessories - Technical specifications - Pin assignment - Power supply - First-time operation - Operating and maintenance - Controls - Maintenance - Check - Description of functions - Tape deck - Control - Audio section - Power supply - Maintenance instructions - Tape deck - Control - Audio section - Test equipment - Auxiliary devices - Spare parts list - Circuit diagrams - Control - Audio section

Revox E36 Tape Recorder User Manual
User manual for the Revox E36 tape recorder, a professional-grade reel-to-reel machine. This owner's manual covers complete technical specifications, device preparation and setup procedures, and step-by-step operating instructions for all recording and playback functions. Detailed guidance addresses tape playback techniques, recording configuration, and track setup for both stereo 2-track and 4-track recording modes. Includes thorough control descriptions, button and lever functions, and practical recommendations for tape handling and operation. An essential reference for anyone operating this professional tape recorder.

Revox E88 OEM Tape Drive - Technical Information
Technical documentation for the Revox E88 OEM tape drive unit, providing detailed mechanical and electrical specifications essential for service technicians and equipment integrators. Includes dimensional drawings and complete circuit board layouts for the motor driver board, key and display board, tape end sensor board, and cassette sensor board. Covers dual power supply requirements (24V and 5V rails), signal specifications, and communication protocol details for SL-BUS and I2C integration. Technical reference material addresses component identification, operating parameters, and the tape transport system architecture featuring dual DC stepper motors and capstan motor control logic. This workshop manual functions as a comprehensive repair and maintenance resource for troubleshooting drive electronics, verifying component functionality, and understanding the tape mechanism control subsystems.

Revox E88 Service Instructions
Comprehensive service manual for the Revox E88 portable cassette recorder, essential for technicians performing maintenance, repair, and alignment work. Presented in German, English, and French, this workshop manual covers all critical service procedures including disassembly sequences, transport mechanism adjustments, and audio alignment protocols. Features detailed circuit descriptions and full schematic diagrams for the main board, motor driver board, tape end sensor board, cassette sensor board, and power supply sections, along with precise component layouts to guide troubleshooting and component-level repairs. Ideal for professional repair shops and experienced technicians working with this classic portable recorder. Table of Contents: - General - Disassembly - Circuit Description - Transport Adjustments - Audio Alignments - Spare Parts - Diagrams

Revox EasyLine Installation Guide
Installation guide for the Revox EasyLine multi-room audio system. Details cable routing for audio and data-bus connections, mobile and fixed wiring configurations, and amplifier setup including the B250/B250S with B200/B200S controller and B150 models. Covers receiver and preamplifier configuration (B285/B286), connector boxes, and connection protocols with functional specifications. Includes system component overview and building blocks reference list. German language technical documentation.

Revox F36 and G36 NAB Modification Schematics
Technical schematic diagrams for NAB modification circuits on Revox F36 and G36 magnetic tape recorders. This workshop manual covers playback and record amplifier schematics with detailed vacuum tube configurations (V10, V11, V9, V4, V3, V5), resistor and capacitor specifications, and marked component value changes for dual-channel amplifier setup to meet NAB standards. Essential reference for technicians performing tape recorder maintenance and signal path alignment on these professional audio machines.

Revox F36 Tape Recorder Operating Instructions
Operating instructions for the Revox F36 tape recorder, an essential reference for setup, tape threading, speed adjustment, and configuring 2-track and 4-track recording modes. This manual covers recording and playback procedures, rewind functions, and routine maintenance to keep your tape deck running reliably. Includes technical specifications, control explanations, and component identification diagrams to guide you through operation and troubleshooting. Translated from the original German documentation.

Revox F36/G36 Channel Selector Switch S2 Modification
Technical service documentation for modifying the channel selector switch S2 on Revox F36 and G36 tape recorders (applicable to G36 serial numbers 35001–37000). This repair manual provides step-by-step modification instructions to reduce crosstalk when operating the built-in monitor amplifier. The workshop guide includes a complete cathode follower circuit schematic and detailed wiring diagram for switch S2, with all component values clearly specified for accurate reassembly and troubleshooting.

Revox G-36 4-Track Stereo Tape Recorder User Manual
Japanese-language user manual for the Revox G-36 4-track stereo tape recorder. This workshop manual provides comprehensive operational guidance covering front panel controls, input/output connection terminals, tape speed selection, recording level adjustment, playback functions, and remote control operation. Detailed sections address tape threading procedures, tape sensing mechanisms, the built-in monitor amplifier and speaker system, step-by-step operating procedures, and control descriptions essential for proper use and maintenance of this professional-grade reel-to-reel recorder.

Revox G36 60Hz Conversion Kit - Installation Instructions
Installation guide for converting a Revox G36 tape recorder from 50Hz to 60Hz operation. This workshop manual covers the complete mechanical and electrical adaptation required for North American power systems, including step-by-step motor conversion procedures and the assembly sequence for integrating the supplied components. The kit provides a 60Hz capstan motor, capacitors (1.5µF for capstan motor, 2µF and 0.47µF for rewind motor circuits), and a 1.2A slow-blow fuse. Full electrical schematics are included for both CCIR and NAB record amplifier configurations, as well as corresponding playback amplifier circuits, with all component values and resistor specifications clearly marked for proper installation and verification.

Revox G36 Service Manual
Service manual for the Revox G36 tape recorder, a comprehensive technical reference for professional maintenance and repair. Covers tape transport mechanics in detail, including the three-motor drive system, band guide mechanisms, and both mechanical and electromagnetic brake operation. Details pressure adjustments, routine maintenance procedures with cleaning and lubrication specifications, tone arm calibration, signal level measurement techniques, and electromagnet servicing. Provides circuit diagrams and technical specifications alongside complete parts lists to support hands-on troubleshooting and component replacement. Essential documentation for technicians maintaining studio-grade tape machines. Table of Contents: - General Information - Operating Method of the Transmission - Measurements and Adjustments at the Transmission - Band Guidance - Mechanical (Stop) Brakes - Band Drive - Pressure Force of the Rubber Roll - Band Tensioner - Tone Arm Oscillations - Band Speed - Maintenance and Care - Cleaning - Lubrication - Maintenance of Electromagnets - Pressure Aggregate - Replacement of Capstan Aggregate - Structure and Operating Method of the Electronic Part - Adjustments and Measurements on the Electronic Part - Measuring Devices - Demagnetization - Justification of Tone Arms - Measurements in the Return Channel - Installation of the Pre-magnetization Current - Measurement of the Intake Frequency Response - Installation of the VU-Meters - Installation of the Head Shield - Overvoltage Protection - Comparison of the HF Spark Frequency - Possible Errors and Their Remedies - Errors in the Transmission - Errors in the Electronic Part - Technical Data 2- and 4-Track - Circuit Diagrams - Spare Parts List

Revox G36 Stereo Tape Recorder - Operating Instructions
Operating instructions for the Revox G36 stereo tape recorder, a professional-grade machine from Studer Revox. This manual covers the complete control layout, stereo-mono and dual-track operation modes, initial setup and commissioning, recording and playback procedures including stereo recording techniques, troubleshooting guidance, use of the recorder as an audio frequency amplifier, routine maintenance, full technical specifications, and block diagram. German-language original document published by Studer Revox in Regensdorf-Zurich, Switzerland. An essential reference for operators and technicians working with this classic reel-to-reel tape recorder.

Revox G36 Stereo Tape Recorder Operating Manual
Operating manual in German for the Revox G36 stereo tape recorder. This workshop manual provides comprehensive guidance on control layout and labeling, stereo-mono recording modes, dual-track and four-track operation, pre-recording adjustments, recording techniques, playback functionality, and stereo operation. Covers control circuits, maintenance procedures, and complete technical specifications for service and repair. An essential reference for operators and technicians working with this professional-grade reel-to-reel machine.

Revox High Fidelity Preamplifier 59-A and Power Amplifier 59-E
Complete service manual for the Revox 59-A preamplifier and 59-E power amplifier pair, covering full technical specifications, assembly procedures, and operational setup for this classic high-fidelity amplifier system. Detailed circuit diagrams and component layout schematics support both initial assembly and troubleshooting. Includes tone control response curves, filter adjustment documentation, and input switching configuration for turntable, tape deck, tuner, and microphone sources. An essential workshop reference for restoration, maintenance, and repair of these premium audio amplifiers.

Revox Interface 884 Service Instructions
Service instructions for the Revox Interface 884, a professional audio interface unit for educational and broadcast applications. This workshop manual covers general operating principles, functional description, and detailed source interface connections including instructor's microphone, REVOX R88, B795, and D88 recorder integration. Features comprehensive fast copy filter adjustment procedures, student recorder interface configuration for the D88 unit, and complete functional testing protocols. Includes full schematic diagrams for layout 11 and layout 12 circuit boards showing component placement, pin assignments, and signal routing. Engineering documentation based on technical status April 1983. Essential reference for technicians performing maintenance, troubleshooting, and repair work on this interface system. Table of Contents: - General - Versions - Layout 11 - Starter PCB 1.388.343 - Layout 12 - Pin assignment - Functional description - Principle of operation - Adjustment procedures - Source interface - Instructor's microphone - Revox 888, 8795, aux - REVOX D88 Instructor's recorder - Fast Copy Filter - Principle of operation - Adjustment procedures - Interface for REVOX D88 student's recorder - Functional tests

Revox IR Remote Control Systems Service Instructions
Comprehensive service manual for Revox infrared remote control systems, covering the Timer Controller B203, IR-Transmitters B201/B201cd/B205, IR-Receiver B202, and IR-Transceiver B206. This workshop manual includes detailed disassembly instructions, functional descriptions of each component, parameter adjustment procedures, RS232 serial interface specifications, and complete technical data. Text presented in German, English, and French, making it accessible to technicians across regions. Essential reference for maintenance, troubleshooting, and repair of Revox broadcast and studio automation equipment. Table of Contents: - Timer Controller B203 - IR-Transmitters B201, B201CD, B205 - IR-Receiver B202 - IR-Transceiver B206 - Pin Assignment/Installation Instructions - Schemata - Diagrams - Spare Parts - Technical Specifications

Revox LSC-8 Logging System Controller Manual
Complete technical manual for the Revox LSC-8 Logging System Controller, an industrial-grade multi-channel audio control system. Provides detailed hardware specifications and functional descriptions of all internal boards: basis board, serial control boards, monitor switch board, keyboard interface, input/output modules, and processor board. Includes a practical application example demonstrating setup with a turntable and LSC-8 ARS integration. Features comprehensive connection diagrams, pin assignments for XLR connectors, RS-232 serial port configurations, and audio interface wiring for various routing scenarios. Documents the complete system architecture for controlling up to 8 audio channels simultaneously with full monitoring and recording management. Essential reference for technicians installing, configuring, and maintaining the LSC-8 control platform in professional logging and broadcast environments.

Revox MB16 Mixing Console Broadcast Service Manual
Service and operation manual for the Revox MB16 broadcast mixing console, presented in German and English. This workshop manual covers the complete signal path and system architecture, detailing all operating elements, control functions, connector specifications, and alignment procedures. Includes comprehensive technical guidance for the control room unit, microphone and line input modules, telephone interface input, studio monitoring unit, metering panel, and power supply assembly. Documents proper MOS component handling protocols and electrostatic discharge precautions essential for safe servicing. Table of Contents: - General information - Operating elements, functions, connectors - Specifications - Alignments - Schematic diagrams, pcbs, parts

Revox Model 36 Tape Recorder - User Manual
User manual for the Revox Model 36 tape recorder, a professional-grade reel-to-reel machine from the respected Swiss Studer Revox line. This comprehensive manual covers all essential operating instructions and setup procedures needed to get the most from this classic machine. You'll find detailed tape threading guidance, speed selection between 9.5 and 19 cm/sec, and step-by-step recording and playback operations. The manual explains how to use the microphone and radio inputs, as well as the mixing features that make this recorder versatile for both studio and field work. Technical specifications detail the tube configuration (8 tubes, 14 functions), frequency response characteristics, 3.5-watt power consumption, and external loudspeaker connection capability. Maintenance guidelines help keep the transport and electronics in reliable working order. Whether you're restoring a vintage Revox 36 or putting one back into active service, this manual provides the technical reference you need for proper operation and upkeep.

Revox Model 39 Stereo Amplifier Schematic Diagram
Complete electronic schematic diagram for the Revox Model 39 stereo amplifier, a classic Swiss-made high-fidelity audio power amplifier. This technical schematic details the full circuit topology, including the vacuum tube complement (ECC83 preamp tubes, ECL82 output tubes), input stages, tape recorder connections, and complete audio output stage. Essential reference documentation for service technicians, repair specialists, and audio engineers working on restoration or troubleshooting of this amplifier model. Document reference S-39.

Revox Model 40 Series 2 Stereo Amplifier Schematic
Complete electronic schematic diagram for the Revox Model 40 Series 2 stereo amplifier from 1964. This tube-based service documentation details the dual-channel signal path architecture with separate channels for phono inputs, alongside tape and radio signal routing. The schematic includes transformer-coupled output stages, full component values, tube type designations, and the biasing and coupling networks essential for understanding the amplifier's Class AB output design. A technical reference for technicians servicing or restoring this classic Swiss-made tube amplifier.

Revox Model 40 Stereo Amplifier - Operating Manual
Operating manual for the Revox Model 40 stereo amplifier, providing complete technical specifications and guidance for setup and daily operation. Includes schematic diagram, frequency response curves with bass and treble control characteristics, distortion and intermodulation measurements, and detailed connection diagrams for various audio sources. The dual-channel design features separate input stages accommodating phono cartridges (magnetic and dynamic types), tape deck inputs, and radio tuner connections. Essential reference for owners and technicians maintaining or troubleshooting this classic high-fidelity amplifier.

Revox Model 40 Stereo Amplifier Schematic Diagram
Complete electrical schematic diagram for the Revox Model 40 stereo power amplifier, detailing the tube-based circuit architecture across both channels. The schematic shows input stage topology, voltage amplification stages, driver circuits, and output transformer configurations with full specifications. Includes channel input selector (Kanal 1, Kanal 2), tone control circuitry, and output stage wiring. Tube complement comprises ECC83, ECC81, ECL86, and T779 types. This schematic provides technicians with the essential electrical reference for amplifier maintenance, troubleshooting, and rebuild work on the Model 40, enabling signal path tracing, component value verification, and circuit fault diagnosis.

Revox Multiplex Filter - Technical Specifications and Circuit Diagram
Technical documentation for the Revox Multiplex Filter, a precision lowpass filter engineered for capturing stereo multiplex FM broadcasts directly onto magnetic tape. This service manual provides complete technical specifications including input sensitivity, output levels, harmonic distortion, signal-to-noise ratio, channel isolation (cross-talk rejection), and power consumption data. The circuit employs two amplifier stages per channel built around silicon transistors (BSY72) for reliable signal conditioning. Full circuit diagram with all component values and pin-level interconnection details for seamless integration with tape recorder equipment. Frequency response curve demonstrates flat passband linearity to 14 kHz with precise attenuation characteristics at the critical 19 kHz and 38 kHz multiplex pilot and subcarrier frequencies. Documentation provided in both English and French for international reference.

Revox PR99 LSM Schematic Set of Electronics
Complete schematic and PCB layout documentation for the Revox PR99 LSM professional reel-to-reel tape recorder. This electronics repair manual provides detailed circuit diagrams covering the power supply, tape transport control logic, fader start circuits, relay assembly, tape motion sensing, capstan motor speed regulation, audio interconnect board, line input stages, input and recording amplifier sections, oscillator stage, playback amplifier, and output amplifier. Component identification and tube circuit schematics included for complete electronics troubleshooting and restoration work.

Revox PR99 LSM2 Schematic Diagrams and Parts
Complete schematic documentation for the Revox PR99 LSM2 reel-to-reel tape recorder, essential for service technicians and serious enthusiasts undertaking maintenance or troubleshooting. Includes block diagrams mapping the power supply architecture and tape drive control logic, followed by detailed circuit schematics for each major PCB: power supply, tape drive control, fader start logic, remote control unit interface, and tape motion sensor circuitry. Audio signal path documentation covers the line input stage, input preamplifier, record amplifier, oscillator reference, reproduce amplifier, and output amplifier sections. Each PCB schematic includes board-level component placement diagrams and comprehensive parts lists identifying resistors, capacitors, transistors, integrated circuits, and mechanical elements by reference designator and value. An essential workshop reference for Revox PR99 LSM2 repair and restoration.

Revox PR99 MKI & MKII Troubleshooting Manual
Complete troubleshooting guide for the Studer Revox PR99 MKI and MKII professional reel-to-reel tape recorders. This workshop manual provides detailed schematics, alignment procedures, and step-by-step repair instructions for maintaining and servicing these high-end studio machines. Covers electrical diagnostics, mechanical adjustments, and component-level troubleshooting to restore full operational performance. Essential reference for technicians and experienced users working with these precision audio recorders. Table of Contents: - General - Technical specifications and dimensions - Dismantling - Removal of case - Removal of front panel - Removal of audio control section - Removal of fascia from control section - Removal of headblock - Removal of brake assembly - Removal of right-hand spooling motor - Removal of capstan motor - Removal of tape counter - Removal of pinch roller solenoid and pinch roller arm - Removal of tape lift mechanism - Removal of audio circuit boards - Removal of tape transport control board - Removal of speed control board - Removal of power transformer unit - Disassembly of audio connection board - Removal of left tape tension arm - Removal of right tape tension arm - Removal of audio interconnection board - Removal of VU-meter unit - Disassembly of FADER START LOGIC PCB

Revox PR99 MkI/MkII Service Instructions and Schematics
Service manual and detailed schematics for the Revox PR99 reel-to-reel tape recorder, covering both MkI and MkII variants. This comprehensive repair guide includes operating instructions in German, English, and French, complete dismantling procedures for safe disassembly, mechanical component documentation with precise positioning and adjustment reference, full electronic circuit schematics for troubleshooting and component-level repair, detailed parts lists for sourcing replacements, and connector pinout layouts essential for reassembly. An indispensable workshop reference for anyone servicing or restoring these professional-grade tape machines.

Revox PR99 MkI/MkII Service Instructions and Schematics
Complete service manual for the Revox PR99 MkI and MkII reel-to-reel tape recorders, providing everything needed for technical maintenance and repair. Covers operating instructions, detailed mechanical and electronic schematics, component layouts, tape deck mechanism diagrams, control panel wiring, and audio signal paths. Includes full parts lists with part numbers, step-by-step dismantling procedures, and electrical adjustment specifications for alignment and calibration. Suitable for technicians servicing these professional tape machines or users performing maintenance checks and troubleshooting.

Revox PR99 MkI/MkII Service Manual
Complete service manual for the Revox PR99 MkI and MkII professional reel-to-reel tape recorders. This workshop manual covers full disassembly and reassembly procedures, detailed mechanical and electronics sections, tape transport mechanism adjustments, audio level and frequency response calibration, performance measurements and alignment procedures, complete schematic diagrams, and comprehensive parts lists. Includes technical specifications, dimensional drawings, and mounting details for rack-mount configurations. Essential reference for technicians servicing these legendary broadcast and mastering tape machines.

Revox R88 Operating and Service Instructions
Complete operating and service manual for the Revox R88 professional tape recorder. Covers safety protocols and emergency procedures, technical specifications and mechanical overview, detailed operating instructions for all front and rear panel controls, cleaning and maintenance procedures specific to tape transport mechanisms, step-by-step installation and connection guidance, head alignment adjustments, audio calibration settings, bias trap configurations, control logic operation, tape speed selection, and full electrical specifications. An essential workshop manual and troubleshooting reference for service technicians and experienced operators performing maintenance on this precision recording equipment. Table of Contents: - General information - Reference description - Accessories - Technical specifications - Operating instructions - Front panel: controls - Rear panel: connectors - Cleaning the tape recorder - Installation - Modifying the audio base 1.188.311 - Connecting the R88 - Addressing the interface 1.388.365 - Notes concerning remote operation - Pin assignment - Sockets - D88 Remote socket - TAPE DRIVE socket - RECORD/PLAYBACK socket - INPUT DIRECT sockets - Connecting cable for audio base 1.188.311 - Maintenance instructions - Introduction - Test equipment and aids - Notes - Control - Tape transport functions - Tacho head - Adjusting the tape speed - Audio adjustments - Adjusting the automatic level control - Reproducing head azimuth - Reference level from calibration tape - Bias trap - Recording head azimuth - Tape bias - Recording level - Record equalization - Set of schematics

Revox Series 36 Tape Recorder Service Manual
Service manual for the Revox Series 36 tape recorders (D36, E36, F36 models) providing comprehensive technical guidance for maintenance, calibration, and repair. The manual covers both mechanical and electronic systems in detail. Mechanical sections address tape path geometry, brake operation and adjustment, tape tension control, pinch roller setup, end-of-tape detection, and precise speed stability including wow and flutter measurements. Routine maintenance procedures include head and tape guide cleaning, proper lubrication schedules, solenoid inspection and servicing, and push-button mechanism assembly. Electronic circuit work covers instrument selection and measurement techniques, demagnetization procedures, playback head alignment, amplifier circuit checks, bias level optimization, recording and playback response curves, record level control adjustment, and head shielding effectiveness. Troubleshooting section helps diagnose and resolve common operational issues. The manual includes detailed figures throughout, comprehensive tables for playback equalization and recording pre-emphasis settings, and full schematic diagrams of the electronic circuits. An essential workshop resource for technicians performing maintenance, alignment, or repair on these professional-grade tape recorder models.

Revox Stereo Power Amplifier Schematic Diagram
Electrical schematic diagram for the Revox model 39 stereo power amplifier. This single-page technical drawing provides a complete view of the tube-based circuit architecture, including ECC83 and ECL82 vacuum tubes, power supply topology, input stage design, and output stage configuration. All component values and wiring connections are clearly marked, making this an essential reference for servicing, troubleshooting, and restoration work on this classic Revox amplifier.

Revox TLCA77 Remote Control Unit Circuitry Diagram
Technical circuitry documentation for the Revox TLCA77 remote control unit, essential for understanding and servicing this professional audio accessory. The service manual features a detailed circuit diagram (fig. 7.1-86) illustrating the complete push-button control architecture, including play, stop, record, and directional transport functions with their associated resistor and capacitor networks. The schematic clearly identifies all component values and signal paths, making troubleshooting and repair straightforward. Also included is the pinout diagram for the Hirschmann Wist 10 connector interface, critical for correct cabling and reliable remote operation. Key electrical specifications are documented: 27 Vdc output available on terminal 7 with a maximum load capacity of 150 mA—essential parameters for safe equipment integration. The manual addresses practical installation considerations, including proper cable requirements and guidance on dummy connector usage for incomplete systems. Valuable reference material for technicians, service centers, and experienced users performing maintenance or diagnostics on Revox tape deck remote systems.

Revox Trainer 884 Operating Instructions
Operating instructions for the Revox Trainer 884 language laboratory system. This trilingual documentation in German, French, and English guides users through complete system setup, detailing the teacher control panel layout and all control functions necessary for group formation, copying operations, and library management. Covers class group functions and individual student functions alongside program playback and recording procedures. Includes practical guidance on tape handling and routine maintenance to keep equipment in working order. Features detailed diagrams of both teacher and student control panels with illustrated button functions and operating modes, helping operators quickly understand and navigate the system during daily use.

Revox Trainer 884 Service Instructions
Service manual for the Revox Trainer 884 language learning system. Provides comprehensive technical documentation including equipment description, functional block diagrams, and complete technical glossary. Details the power supply architecture: mains distribution, switching regulator, and DC/DC converter modules. Covers the digital unit board, central processing unit, command panel, multiplex driver, and UART interface. Includes audio basis board schematics, bus system topology, audio output and amplifier circuits. Contains signal flow diagrams and teacher console electronic schematics essential for troubleshooting and maintenance. Technical documentation reflects August 1980 engineering specifications. Designed for technicians and service personnel requiring detailed system-level understanding for repair and maintenance of the Trainer 884. Table of Contents: - General Information - Description of the System - Function Schematic - Technical Glossary - Power Supply - Bus Supply - Switching Regulator - DC/DC Converter - Mains Distribution Box - Digital Control - Digital Unit Board - Central Processing Unit (CPU) - Command Panel - Multiplex Driver - UART (Universal Asynchronous Receiver/Transmitter) - Interface - Interface Addressing - Bus System and Audio Part - Audio Basis Board - Bus - Audio Print - Monitor Amplifier - AF Power Amplifier - Checking - Standard Check - Detail Check

RS232 ASCII Protocol Specifications for STUDER Analog Tape Recorders
Technical protocol reference for integrating RS232 serial interface communication with STUDER professional analog tape recorders including the C270, A807, A810, A812, A816, and A820-2CH models. Covers RS232 connector pinout and signal specifications (9-pin D-type SMPTE configuration), serial communication parameters (9600 baud, asynchronous bit transmission), message structure using ASCII-coded command strings, handshake protocols and error detection procedures, and complete command reference tables detailing input and output formats for tape transport control, speed selection, timer operation, and real-time machine status reporting. Essential technical documentation for service technicians, engineers, and integrators working with STUDER recorder remote control systems and automation setups.

Studer A779 Professional Compact Mixer Operating and Service Instructions
Operating and service manual for the Studer A779 professional compact mixing console. This workshop manual provides comprehensive guidance on safe installation, power supply configuration, earthing requirements, and electromagnetic compatibility setup. It covers routine maintenance procedures, electrostatic discharge precautions for sensitive components, repair protocols for technicians, surface-mounted device (SMD) component handling, and proper equipment disposal. Includes CE conformity documentation and environmental operating specifications for air temperature and humidity ranges. Essential reference for qualified service personnel and equipment operators maintaining this mixing console.

Studer B77 MkII Tape Recorder Operating Instructions
Complete operating manual for the Studer B77 MkII reel-to-reel tape recorder, a professional-grade machine essential for broadcast, studio, and archival recording work. This documentation covers initial setup and installation, detailed operating instructions for recording and playback, routine maintenance schedules, and step-by-step repair procedures for service technicians. Includes comprehensive technical specifications, safety protocols, and a structured troubleshooting guide to diagnose and resolve common issues and performance problems. Written for both operators and service engineers maintaining this legendary Swiss-engineered recorder.

Studer PR99 MKIII Professional Tape Recorder Service Manual
Comprehensive service manual for the Studer PR99 MKIII professional tape recorder, containing detailed operating instructions and specifications. Covers all front and rear panel controls, complete technical specifications and mechanical dimensions, step-by-step disassembly procedures, and full tape transport mechanism design. Includes thorough electronics documentation with electrical adjustment procedures, general schematics for tape drive control circuits, dedicated audio signal path schematics, complete parts lists with component designations, and socket pinout descriptions. Features essential safety precautions, installation and setup guidelines, ambient operating condition limits, preventative maintenance schedules, repair and troubleshooting procedures, proper electrostatic discharge handling techniques for sensitive components, and best practices for surface-mounted device installation and rework. An indispensable repair manual and workshop reference for technicians servicing this professional-grade tape deck.

Studer Revox Power Cube Service Instructions
Complete Studer Revox Power Cube service manual covering the full subwoofer amplifier system in German, English, and French. This workshop manual includes general technical information, step-by-step disassembly instructions, detailed electronic component groups and their functions, adjustment and calibration procedures, complete schematic diagrams, and wiring layouts for the mains transformer, power amplifier board, audio basis board, and satellite speaker connections. High-quality photographs throughout supplement a comprehensive spare parts list with part numbers and technical specifications for all replaceable components. The structured format is practical for bench repair work and troubleshooting.

Studer Revox PR99 MkIII Tape Recorder Operating Instructions
Operating instructions manual for the Studer Revox PR99 MkIII tape recorder, covering setup, daily operation, and preventive maintenance. Includes safety precautions, installation guidance, technical specifications, control panel layout, wiring diagrams and schematic diagrams for troubleshooting and repair. Published in German, English, and French.