Revox A77 Service Manual

1. CONTENTS
2. GENERAL
2.1. Front Panel Rear Panel
3. DISMANTLING
3.1. Removal
3.2. Removal
3.3. Removal
3.4. Removal
3.5. Removal
3.6. Removal
3.7. Removal
3.8. Removal
3.9. Removal
3.10. Removal
3.11. Removal
3.12. Removal
3.13. Removal
of Housing
of Cover Panel
of Front Panel
of Power Switch
of Brake Unit
of Reel Motors
of Capstan Motor
of Control Board
of Power Transformer
of Amplifier Cards
of Potentiometer
of Switch Board
of Frame ( Removal of Rotary Switches)
4. MECHANICS
4.1. Headblock
4.1.1. Tape Guides
4.1.2. Head Mounting
4.2. Tape Tension
4.3. Brakes ( Stop )
4.3.1. Brake Torque Measurement
4.3.2. Brake Adjustment
4.4. Pressure Roller
4.4.1. Pressure Measurement
4.4.2. Pressure Solenoid Readjustment
4.4.3. Exchange of Pressure Roller
4.4.4. Pressure Lever Readjustment
4.5. Capstan Motor
4.5.1. Removal of Capstan Axis, Ball Bearings
4.6. Exchange of Reel Motor Bearings
4.7. Lubrication
4.8. End- of- Tape Switch
5. ELECTRONICS
5.1. Switch Board and VU- Meter Board
5.2. Input Amplifier
5.3. Record Amplifier
5.4. Oscillator
5.5. Record Relay
5.6. Playback Amplifier
5.7. Power Amplifier ( Loudspeaker Amplifier )
5.8. Power Supply
5.9. Drive Control
5.9.1. Photoelectric End- of- Tape Switch
5.10. Speed Regulation, Capstan Motor
6. ELECTRICAL ADJUSTMENTS AND MEASUREMENTS
6.1. Demagnetizing
6.2. Tape Speed
6.2.1. Pick-up Head - Adjustment
6.2.2. Tacho Adjustment
6.2.3. Tacho Adjustment with Cathode- Ray Oscilloscope
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Revox A77 Specifications

General

Brand	Revox
Model	A77
Category	Tape Deck
Language	English