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Nakamichi CR-3A Service Manual

Nakamichi CR-3A
39 pages
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Nakamichi
NAKA-00120
Service
Manual
Nakamichi
CR-3
CR-3A
CR-3E
CR-30
Discrete
Head
Cassette
Deck
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Nakamichi CR-3A Specifications

General IconGeneral
BrandNakamichi
ModelCR-3A
CategoryCassette Player
LanguageEnglish

Summary

Removal Procedures

Mechanical Adjustments

Head Tilt Adjustment Procedure

Adjusting record and playback head tilt for optimal signal.

Erase Head Height and Tilt Tuning

Fine-tuning the erase head's height and tilt angle.

Playback/Record Head Height & Azimuth

Adjusting height and azimuth alignment for playback/record heads.

Tape Speed Calibration Procedure

Calibrating the capstan motor speed for accurate tape speed.

Electrical Adjustments

Playback Head Alignment Adjustments

Adjusting playback head track alignment and azimuth.

Playback Level & Response Calibration

Calibrating playback levels and frequency response.

Bias Oscillation & Erase Current Adjustments

Adjusting bias frequency and erase current levels.

Record Head Adjustments & Calibration

Adjusting record head height, azimuth, level, and bias current.

Overall Frequency Response Tuning

Fine-tuning overall frequency response for recording and playback.

Schematic Diagram

IC Block Diagrams

Block diagrams illustrating the function of integrated circuits.

Schematic Diagram

Main Schematic Diagram

Detailed circuit schematic of the entire Nakamichi CR-3 unit.

Wiring Diagram

Block Diagrams

Amplifier Section Block Diagram

Block diagram of the audio amplifier circuits.

Mechanism Control Section Block Diagram

Block diagram of the mechanism control logic.

Timing Charts and Eq. Amp. Frequency Response

Playback Frequency Response Charts

Graphs showing playback frequency response characteristics.

Record Frequency Response Charts

Graphs showing record frequency response characteristics.

Specifications

Nakamichi CR-3 Technical Specifications

Detailed technical specifications of the Nakamichi CR-3 cassette deck.

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