Nakamichi 481 Manuals

Manuals and User Guides for Nakamichi 481. We have 1 Nakamichi 481 manual available for free PDF download: Service Manual

Nakamichi 481 Service Manual

Nakamichi 481 Service Manual (66 pages)

Diskrete head cassette deck

Brand: Nakamichi | Category: Cassette Player | Size: 4.74 MB

Table of Contents

Table of Contents
2
1 General

5
2 Principle of Operation

5
- Mechanisms
  5
  - Headblock
    5
  - Erase Head
    6
  - Double Capstan Tape Drive
    6
  - Mechanism Control Cam Operation
    7
- Amp. Circuits
  8
  - Playback Eq. Amp. Circuit
    8
- Mechanism Control Circuits
  11
  - Outline
    11
  - 12 V Power Source
    12
  - Power-Mute Signal
    12
  - Auto Shut.off Circuit
    12
  - Record Control Circuit
    15
  - Mute Signal
    15
  - Control Motor Drive Circuit
    16
  - Reel Motor Governor
    18
3 Removal Procedures

19
- Cassette Case Cover Ass'y
  19
- Top Cover Ass'y
  19
- Bottom Cover Ass'y
  19
- Front Panel Ass'y
  19
- Headphone Jack Ass'y
  19
- Mechanism Ass'y
  19
- Meter Ass'y
  19
- Lamp P.C.B. R Ass'y and Lamp P.C.B. L Ass'y
  19
- Main P.C.b.ass'y
  21
- Control Switch Holder Ass'y
  21
- Switch P.C.B. Ass'y
  21
- Volume P.C.B. Ass'y and Control Switch P.C.B. Ass'y
  21
- Rear Panel Ass'y, Power Transformer and Power Switch
  21
- Cassette Case Ass'y and Cover Plate Ass'y
  23
- Tape Counterass'y
  23
- Capstan Motor Ass'y and Flywheel Ass'y
  24
- Sub Mechanism Chassis Ass'y
  24
- Control Motor Ass'y and Reel Motor Ass'y
  24
- Cam Control Volume
  24
- Reel Hub Ass'y and Idler Ass'y
  24
- Cam Drive Gear and Control Cam
  25
- Head Mount Base Ass'y
  25
- Pressure Roller Ass'y and Erase Head
  25
- Playback Head Ass'y and Record Head Ass'y
  25
4 Measurement Instruments

26
5 Mechanical Adjustments

27

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