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Nakamichi RX-202E - Service Manual

Nakamichi RX-202E
41 pages
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Summary

Mechanical Adjustments

Tape Guide Height Check for Record;Playback Head and Erase Head

Check tape guide height for record/playback and erase heads.

Head Base Stroke Check

Checks the head base stroke for proper alignment and clearance.

Record;Playback Azimuth Alignment and Height Check

Aligns and checks the azimuth and height of the record/playback head.

Pressure Adjustment of Pressure Roller

Adjusts the pressure roller for correct torque and tape contact.

Slide Base Position Adjustment (on the Logic P.C.B. Assy)

Adjusts slide base position on the logic PCB for cassette case alignment.

Tape Travelling Check

Verifies tape path stability and head contact during playback.

Reel Motor Speed Adjustment in Play Mode

Adjusts reel motor speed to specified torque in play mode.

Tape Speed Adjustment

Calibrates tape speed by adjusting the capstan motor volume.

Lubrication

Specifies lubricants for tape transport mechanism parts upon replacement.

Parts Location for Electrical Adjustment

Electrical Adjustments and Measurements

Adjustment and Measurement Instructions

General instructions and table for performing electrical adjustments and measurements.

Playback Frequency Response Adjustment

Adjusts playback frequency response using specific tapes and settings.

Dolby NR Circuit Check

Checks Dolby NR circuit operation for B-Type and C-Type.

Mechanism Assy and Parts List

Synthesis

Exploded view and parts list for the overall unit synthesis.

Chassis Assy (A01)

Lists parts and diagrams for the main chassis assembly.

Rear Panel Assy RX202 (B01)

Parts list and diagram for the rear panel assembly.

Synthesis Mechanism Assy (B02)

Parts list and diagram for the synthesis mechanism assembly.

S Mechanism Assy (C01)

Lists parts and diagrams for the 'S' mechanism assembly.

RS Mechanism Assy (C02)

Lists parts and diagrams for the 'RS' mechanism assembly.

Mechanism Assy (D01)

Exploded view and parts list for the main mechanism assembly.

Motor Holder Assy (E01)

Parts list and diagram for the motor holder assembly.

S Slide Chassis Assy (E02)

Parts list and diagram for the 'S' slide chassis assembly.

Main Chassis Assy (E03)

Exploded view and parts list for the main chassis assembly.

Mounting Diagrams and Parts List

Power Switch P.C.B. Assy

Diagram and parts list for the power switch printed circuit board.

Shut-off P.C.B. Assy

Diagram and parts list for the shut-off printed circuit board.

Lid Lamp P.C.B. Assy

Diagram and parts list for the lid lamp printed circuit board.

Eject Switch P.C.B. Assy

Diagram and parts list for the eject switch printed circuit board.

Tape Switch P.C.B. Assy

Diagram and parts list for the tape switch printed circuit board.

Volume P.C.B. Assy

Diagram and parts list for the volume printed circuit board.

Control Switch P.C.B. Assy

Diagram and parts list for the control switch printed circuit board.

Fader P.C.B. Assy

Diagram and parts list for the fader printed circuit board.

Counter P.C.B. Assy

Diagram and parts list for the counter printed circuit board.

Main P.C.B. Assy

Diagram and parts list for the main printed circuit board.

Logic P.C.B. Assy

Diagram and parts list for the logic printed circuit board.

Schematic Diagrams

Attention to Servicemen

Safety and parts replacement guidelines for service technicians.

IC Block Diagrams

Block diagrams illustrating integrated circuit functions and pin configurations.

Amplifier Section

Schematic diagram detailing the audio amplifier circuitry.

Mechanism Control Section

Schematic diagram for the cassette deck's mechanism control system.

Timing Chart and Eq. Amp. Frequency Response

Timing Chart

Charts detailing the operational timing sequence of various functions.

Eq. Amp. Frequency Response

Graphs showing equalization and amplifier frequency response curves.

Specifications

Block Diagrams

Amplifier Section

Block diagram of the audio amplifier section's signal flow.

Mechanism Control Section

Block diagram of the mechanism control system's operation.

Summary

Mechanical Adjustments

Tape Guide Height Check for Record;Playback Head and Erase Head

Check tape guide height for record/playback and erase heads.

Head Base Stroke Check

Checks the head base stroke for proper alignment and clearance.

Record;Playback Azimuth Alignment and Height Check

Aligns and checks the azimuth and height of the record/playback head.

Pressure Adjustment of Pressure Roller

Adjusts the pressure roller for correct torque and tape contact.

Slide Base Position Adjustment (on the Logic P.C.B. Assy)

Adjusts slide base position on the logic PCB for cassette case alignment.

Tape Travelling Check

Verifies tape path stability and head contact during playback.

Reel Motor Speed Adjustment in Play Mode

Adjusts reel motor speed to specified torque in play mode.

Tape Speed Adjustment

Calibrates tape speed by adjusting the capstan motor volume.

Lubrication

Specifies lubricants for tape transport mechanism parts upon replacement.

Parts Location for Electrical Adjustment

Electrical Adjustments and Measurements

Adjustment and Measurement Instructions

General instructions and table for performing electrical adjustments and measurements.

Playback Frequency Response Adjustment

Adjusts playback frequency response using specific tapes and settings.

Dolby NR Circuit Check

Checks Dolby NR circuit operation for B-Type and C-Type.

Mechanism Assy and Parts List

Synthesis

Exploded view and parts list for the overall unit synthesis.

Chassis Assy (A01)

Lists parts and diagrams for the main chassis assembly.

Rear Panel Assy RX202 (B01)

Parts list and diagram for the rear panel assembly.

Synthesis Mechanism Assy (B02)

Parts list and diagram for the synthesis mechanism assembly.

S Mechanism Assy (C01)

Lists parts and diagrams for the 'S' mechanism assembly.

RS Mechanism Assy (C02)

Lists parts and diagrams for the 'RS' mechanism assembly.

Mechanism Assy (D01)

Exploded view and parts list for the main mechanism assembly.

Motor Holder Assy (E01)

Parts list and diagram for the motor holder assembly.

S Slide Chassis Assy (E02)

Parts list and diagram for the 'S' slide chassis assembly.

Main Chassis Assy (E03)

Exploded view and parts list for the main chassis assembly.

Mounting Diagrams and Parts List

Power Switch P.C.B. Assy

Diagram and parts list for the power switch printed circuit board.

Shut-off P.C.B. Assy

Diagram and parts list for the shut-off printed circuit board.

Lid Lamp P.C.B. Assy

Diagram and parts list for the lid lamp printed circuit board.

Eject Switch P.C.B. Assy

Diagram and parts list for the eject switch printed circuit board.

Tape Switch P.C.B. Assy

Diagram and parts list for the tape switch printed circuit board.

Volume P.C.B. Assy

Diagram and parts list for the volume printed circuit board.

Control Switch P.C.B. Assy

Diagram and parts list for the control switch printed circuit board.

Fader P.C.B. Assy

Diagram and parts list for the fader printed circuit board.

Counter P.C.B. Assy

Diagram and parts list for the counter printed circuit board.

Main P.C.B. Assy

Diagram and parts list for the main printed circuit board.

Logic P.C.B. Assy

Diagram and parts list for the logic printed circuit board.

Schematic Diagrams

Attention to Servicemen

Safety and parts replacement guidelines for service technicians.

IC Block Diagrams

Block diagrams illustrating integrated circuit functions and pin configurations.

Amplifier Section

Schematic diagram detailing the audio amplifier circuitry.

Mechanism Control Section

Schematic diagram for the cassette deck's mechanism control system.

Timing Chart and Eq. Amp. Frequency Response

Timing Chart

Charts detailing the operational timing sequence of various functions.

Eq. Amp. Frequency Response

Graphs showing equalization and amplifier frequency response curves.

Specifications

Block Diagrams

Amplifier Section

Block diagram of the audio amplifier section's signal flow.

Mechanism Control Section

Block diagram of the mechanism control system's operation.

Nakamichi RX-202E Specifications

General IconGeneral
BrandNakamichi
ModelRX-202E
CategoryCassette Player
LanguageEnglish

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