Nakamichi RX 202E Service Manual

Page 2

CONTENTS

NH

9

10.
11.

1.

General ...................................................................... 1
Mechanical Adjustments ...................................................... 2
2 1. Tape Guide Height Check for Record/Playback Head and Erase Head ..................... 2
2 2. Head Base Stroke Check .................................................. 2
2 3. Record/Playback Azimuth Alignment and Height Check ............................. 2
2 4. Pressure Adjustment of Pressure Roller ......................................... 2
2 5. Slide Base Position Adjustment (on the Logic P.C.B. Assy) ........................... 2
2 6. Tape Travelling Check .................................................... 3
2 7. Reel Motor Speed Adjustment in Play Mode ..................................... 3
2 8. Tape Speed Adjustment .................................. . . . .............. 3
2. 9. Lubrication ........................................................... 3
Parts Location for Electrical Adjustment ................................................ 4
Electrical Adjustments and Measurements ............................................... 6
4. 1. Adjustment and Measurement Instructions ...................................... 5
4. 2. Playback Frequency Response Adjustment ...................................... 7
4. 3. Dolby NR Circuit Check .................................................. 8
Mechanism Assy and Parts List ....... . ......... . .................................... 9
5. 1. Synthesis ............................................................ 9
5. 2. Chassis Ass y (A01) ...................................................... 10
5. 3. Rear Panel Assy RX202 (801) .............................................. 11
5. 4. Synthesis Mechanism Ass y (302) ............................................. 11
5. 5. S Mechanism Ass y (001) .................................................. 12
5. 6. RS Mechanism Assy (CO2) ................................................. 12
5. 7. Mechanism Assy (D01) ................................................... 13
5. 8. Motor Holder Assy (E01) ................................................. 14
5. 9. S Slide Chassis Ass y (E02) ................................................. 14
5. 10. Main Chassis Ass y (E03) .................................................. 14
Mounting Diagrams and Parts List ....................................... . ............ 15
6. 1. Power Switch P. C. B. Ass y ................................................. 15
6. 2. Shut-off P.C.B. Assy ............................... . ..................... 15
6. 3. Lid Lamp P.C.B. Assy .................................................... 15
6. 4. Eject Switch P.C.B. Assy .................................................. 15
6. 5. Tape Switch P.C.B. Assy .................................................. 16
6. 6. Volume P.C.B. Ass'y ..................................................... 16
6. 7. Counter P.C.B. Assy ..................................................... 17
6. 8. Control Switch P.C.B. Assy ................................ . . ..... . ........ 17
6. 9. Fader P.C.B. Assy ...................................................... 18
6. 10. MaianCB Assy ....................................................... 20
6.11. Logic P. C. B. Ass'y ...................................................... 24
Schematic Diagrams ........................................... . ............. . . . . 26
7. 1. Attention to Servicemen .................................................. 26
7. 2. 10 Block Diagrams ............................ . ......................... 26
7. 3. Schematic Diagrams ..................................................... 27
Wiring Diagram ................................................................ 30
Block Diagrams .............................. . . . . ............................. 31
Timing Chart and Eq. Amp. Frequency Response .......................................... 32
Specifications ..... . .......... . .............. ........ ........ 34
GENERAL

1.1. Voltage Selector
Voltage selector is installed on the rear panel for other version o! the N akamichi RX-202.
This voltage selector can select either 120 V or 220-240 V at customers disposal.

1.2. Packing Materials and Owners Manual

Part No. Domain: Qty
0F03725A Carton Box 3x202 1
0F08748A Carton Box RX202E 1
0F087 26A Packing 2
00042943 Owners Manual (3x202 (U.s.A.. Canada I: Australia) I: RX202E (UK)) 1
0D04296B Owners Manual (RX202 (Japan)) 1
0D04295A Owners Manual (3x202 (Others) ls RX202E (220V Class 2) 1