Revox B740 Stereo Power Amplifier Service Manual
by STUDER REVOXService instructions manual for the Revox B740 stereo power amplifier. Covers disassembly procedures, removal of filter capacitors, power stages, front panel, meter lamps, fuses, and voltage selector adjustment. Includes technical specifications (300W per channel at 4 ohms, frequency response 20Hz-20kHz), circuit description, fail-safe circuits, peak program meter amplifier description, electrical adjustments, test equipment requirements, and performance measurement instructions including frequency response, harmonic distortion, signal-to-noise ratio, and crosstalk attenuation. Contains dimensional drawings, component layout diagrams for front and rear panels, and detailed part identification.
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
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Document Details
- Format
- Pages
- 40
- Size
- 38.2 MB
- Category
- Audio & HiFi