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Tape Deck
A77
Service manual
Revox A77 Service Manual
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Also See for A77
:
Service manual
(134 pages)
,
Operating instructions manual
(56 pages)
,
Operating lnstructions
(31 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Contents
Technical Details
Dimensions Walnut Cabinet, Carrying Case, Chassis
Color Code
Dismantling
Removal of Cover, Front Panel
Removal of Housing, Power Switch
Removal of Brake Unit
Removal of Reel Motors
Removal of Capstan Motor, Control Board
Removal of Power Transformer
Removal of Amplifier Cards
Removal of Potentiometer
Removal of Switch Board
Removal of Frame
Mechanics
Hadblock, Tape Guides
Head Mounting
Tape Tension
Brake Torque Measurement
Brake Adjustment
Pressure Solenoid Readjustment
Pressure Roller, Pressure Measurement
Exchange of Pressure Roller
Pressure Lever Readjustment
Capstan Motor with Ball Bearing
Removal of Capstan Axis, Ball Bearings
Exchange of Reel Motor Bearings
Lubrication
End-Of-Tape Switch
Electronics
Block Diagram
Switch Board and VU-Meter Board
Input/Record Amplifiers
Record Relay
Playback Amplifier
Power Amplifier, Power Supply
Drive Control
Photoelectric End-Of-Tape Switch
Speed Regulation, Capstan Motor
Electrical Adjustments and Measurements
Demagnetizing
Tape Speed
Playback Adjustment
Azimuth Adjustment, Playback Head, Coarse
Playback Level from Test Tape
Frequency Characteristic, Playback
Oscillator and RF - Adjustments
RF - Voltages and Frequency Checking
Dummy Load
RF - Tapes, Record
Record - Adjustments
RF - Traps, Playback, Bias
Azimuth Adjustment, Record Head, Coarse
Distortion Factor Measurements
Azimuth Adjustment, Record Head, Fine
Record Level, Record Equalization
Frequency Characteristic Via Tape
Noise Voltage (and External Voltage) Via Tape/Before Tape
Erase Attenuation
Crosstalk, Mono/Stereo
Output Voltage Check
Wow and Flutter
Accessories
Remote Control
Operation with a Timing Clock
Modifications
Rewind Switch Noise, RFI, Transfer Play Sensivity
Replacement of Capstan Motor, Removal of Capstan
Capstan Motor with Sleeve Bearings, Shaft and Low-Friction Thrust Washer
Troubleshooting
Faults in the Drive
Faults in Circuitry
Tape Speed Calibration
Power Supply Alimentation
Switch Board, VU - Meter Board Overview
Input Amplifier
Frequency Characteristics: Record Amplifier
Equalization
Oscillator
Record Relay Overview
Playback and Drive Amplifier
Loudspeaker Amplifier
Speed Control
Replacement Parts List
Revox A77-DOLBY
Circuit Operation: Record Processor 1.077.853
Use of the Dolby Circuit in the Tape Recorder
Matching and Mismatching
Alignment Instructions REVOX A-77 DOLBY
Function Diagram A77 Dolby
Playback Processor Diagram
Record Processor Diagram
Interconnection
Switch Board Printed Side
VU-Meter Board
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