CANON - canon t90 service man

Comprehensive service manual for the Canon T90 SLR camera, providing complete technical information for maintenance and repair operations. The document begins with preliminary instructions and essential safety considerations, then proceeds through detailed disassembly procedures organized by functional assembly: front cover, battery case, viewfinder, back cover, electronic input dial, main flex and LCD, rewind parts, pentaprism unit, mirror boxes (I and II), spool and sprocket, drive units (I and II), minor body parts, shutter units (I, II and III), and grip head unit. Every section includes precisely detailed exploded diagrams that identify component locations and their specific functions. The manual features a comprehensive parts list with reference numbers, part classifications, and quantities across all assemblies. A substantial section covers critical adjustments after disassembly: shutter speed calibration, flash aperture specifications, FLEK and TTL intensity tuning, rewind inhibit voltage adjustment, and partial and spot metering area alignment. Circuit board schematics, complete wiring diagrams, a detailed electrical components list with full operational specifications, and a comprehensive parts number index enable rapid location of any component or procedure. Technical specifications include operational currents and required test equipment. This service manual is an essential reference for camera repair technicians working with the Canon T90 and advanced 35mm SLR systems.