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Nakamichi 480 Service Manual

2 head cassette deck

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Service manual (73 pages)

Owner's manual (32 pages)

Table Of Contents

Table of Contents

Contents
Control Functions
Voltage Selector
Principle of Operation
Headblock
Adjustment of Tape Guide Height
Erase Head Height and Tilt Adjustment
Erase Head
Double Capstan Tape Drive
Mechanism Control Cam Operation
Play Mode
Record Mode
F.F. or Rewind Mode
Amp. Circuits
Pause Mode
Playback Eq. Amp. Circuit
Playback Eq. Circuit
System Diagram
Time Constant
Record Equalizer Amplifier Circuit
Bias Osc. Circuit
Mechanism Control Circuits
Control Button Operation
Auto Shut-Off Function
Unattended Recording or Playback
Power Switch On/Off
Shut-Off Sensor
Shut-Of Detecting Circuit and Peripheral Circuits
Power-Mute Signal
Mode Is Changed
Power-Mute = L
Memory Rewind
Record Control Circuit
Mute Signal
Control Motor Drive Circuit
Timing Chart
Removal Procedures
Reel Motor Governor
Cassette Case Cover Ass'y Removal
Top Cover Ass'y Removal/Bottom Cover Ass'y/Front Panel Ass'y Removal
Headphone Jack Ass'y Removal
Mechanism Ass'y Removal
Meter Ass'y Removal
Lamp PCB R Ass'y and Lamp PCB L Ass'y Removal
Main PCB Ass'y Removal
Control Switch Holder Ass'y Removal
Switch PCB Ass'y Removal
Volume PCB Ass'y and Control Switch PCB Ass'y Removal
Tape Counter Ass'y
Capstan Motor Ass'y and Flywheel Ass'y Removal
Sub Mechanism Chassis Ass'y Removal
Control Motor Ass'y and Reel Motor Ass'y Removal
Cam Control Volume/Head Mount Base Ass'y Removal
Pressure Roller Ass'y and Erase Head Removal
Record/Playback Head Ass'y Removal
Measurement Instruments
Mechanical Adjustments
Mechanism Control Cam Adjustment
Offset Fine Adjustment of Control Motor Driver
Tape Speed Adjustment
Record/Playback Head Tilt Adjustment
Cam Timing Adjustment
Head Base Stroke Adjustment
Tape Guides Adjustment and Erase Head Stroke Adjustment
Supply Tape Guide Height Adjustment
Take-Up Tape Guide Height Adjustment
Erase Head Stroke Adjustment
Record/Playback Head Height Adjustment and Azimuth Alignment
Tape Travelling Adjustment
Record Switch Linkage Adjustment
Flywheel Holder Adjustment
Eject Wire Adjustment
Lubrication
Parts Location for Electrical Adjustment
Electrical Adjustment and Measurements
Playback Frequency Response Adjustment
Check on Dolby NR Circuit
Mounting Diagrams and Parts List
Control Switch PCB Ass'y Diagram
Control PCB Ass'y Diagram
Auto Shut-Off PCB Ass'y Diagram
Main PCB Ass'y Diagram
Main PCB Ass'y Parts List
Mechanism Ass'y and Parts List
Synthesis Exploded View
Front Panel Ass'y Exploded View
Synthesis Mechanism Ass'y Exploded View
Meter Escutcheon Ass'y Exploded View
Control Switch Holder Ass'y Exploded View
Mechanism Ass'y 480 Exploded View
Chassis Ass'y Exploded View
Flywheel Holder Ass'y Exploded View
Sub Mechanism Chassis Ass'y Exploded View
Main Mechanism Ciassis Ass'y Exploded View
Rear Panel Ass'y Exploded View
Reel Motor Ass'y Exploded View
Control Motor Ass'y Exploded View
Supply Pressure Roller Ass'y Exploded View
Take-Up Pressure Roller Ass'y Exploded View
Head Base Ass'y C Exploded View
Cassette Case Holder L Ass'y Exploded View
Pneumatic Damper Ass'y Exploded View
RP-9E Record/Playback Head Ass'y Exploded View
Overall Timing Chart
EQ. Amp. Frequency Response
Playback Frequency Response
Record Current Frequency Response
Wiring Diagram
Amplifier Block Diagram
Mechanism Control Chart
Schematic Diagrams
Specifications

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1 Control Functions
2 Schematic Diagrams
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See also: Service Manual , Owner's Manual

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