Sony HCD-RG270 Service Manual

4
HCD-GX355/GX555/RG270/RG475/RG575
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 5
2. GENERAL ................................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 8
3-2. Case (Top) ....................................................................... 9
3-3. Door (CD)........................................................................ 9
3-4. Front Panel Section ......................................................... 10
3-5 Mechanical Deck (CWM43FF13)................................... 10
3-6. CD Mechanism Deck (CDM74KFS-F1BD81C (Except
MX model)/CDM74KFS-F1BD84 (MX model)) ........... 11
3-7. Back Panel Section .......................................................... 11
3-8. MAIN Board.................................................................... 12
3-9. BD Board/CD Board ....................................................... 12
3-10. DRIVER Board, SW Board............................................. 13
3-11. Optical Pick-up (KSM-215DCP) .................................... 13
3-12. SENSOR Board ............................................................... 14
3-13. MOTOR (TB) Board ....................................................... 14
3-14. MOTOR (LD) Board ....................................................... 15
4. TEST MODE .............................................................. 16
5. ELECTRICAL ADJUSTMENT ............................ 20
6. DIAGRAMS
6-1. Block Diagram – CD SERVO Section – ........................ 21
6-2. Block Diagram – AUDIO/VIDEO Section – ................. 22
6-3. Block Diagram – AMP Section – ................................... 23
6-4. Block Diagram
– PANEL, POWER SUPPLY Section – .......................... 24
6-5. Printed Wiring Board
– CD Board – (Except MX model) ................................. 26
6-6. Schematic Diagram
– CD Board – (Except MX model) ................................. 27
6-7. Printed Wiring Board – BD Board – (MX model) ......... 28
6-8. Schematic Diagram – BD Board – (MX model) ............ 29
6-9. Printed Wiring Boards – CHANGER Section –............. 30
6-10. Schemtic Diagram – CHANGER Setion –..................... 31
6-11. Printed Wiring Board – MAIN Board – ......................... 32
6-12. Schematic Diagram – MAIN Board (1/3) – ................... 33
6-13. Schematic Diagram – MAIN Board (2/3) – ................... 34
6-14. Schematic Diagram – MAIN Board (3/3) – ................... 35
6-15. Printed Wiring Board – POWER Board – ...................... 36
6-16. Schematic Diagram –POWER Board –.......................... 37
6-17. Printed Wiring Board – SUB WOOFER Board –
(GX555/RG475/RG575 only) ......................................... 38
6-18. Schematic Diagram – SUB WOOFER Board –
(GX555/RG475/RG575 only) ......................................... 39
6-19. Printed Wiring Boards
– AUDIO, MIC, HEADPHONE Boards – ...................... 40
6-20. Schematic Diagram
– AUDIO, MIC, HEADPHONE Boards – ...................... 41
6-21. Printed Wiring Boards – CD-G Section –
(MX model only) ............................................................. 42
6-22. Schematic Diagram – CD-G Section –
(MX model only) ............................................................. 43
6-23. Printed Wiring Board – PANEL Section (1/2) ............... 44
6-24. Printed Wiring Board – PANEL Section (2/2) ............... 45
6-25. Schematic Diagram – PANEL Section (1/2) .................. 46
6-26. Schematic Diagram – PANEL Section (2/2) .................. 47
6-27. Printed Wiring Boards – TRANS Section – ................... 48
6-28. Schematic Diagram – TRANS Section – ....................... 49
7. EXPLODED VIEWS
7-1. Overall Section ................................................................ 66
7-2. Back Panel Section .......................................................... 67
7-3. Front Panel Section ......................................................... 68
7-4. Key Section ..................................................................... 69
7-5. Chassis Section................................................................ 70
7-6. Transformer Section ........................................................ 71
7-7. CD Mechanism Deck Section-1
(CDM74KFS-F1BD81C) (Except MX model)/
(CDM74KFS-F1BD84) (MX model).............................. 72
7-8. CD Mechanism Deck Section-2
(CDM74KFS-F1BD81C) (Except MX model)/
(CDM74KFS-F1BD84) (MX model).............................. 73
8. ELECTRICAL PARTS LIST................................ 74
• Abbreviation
MX: Mexican model
Ver. 1.1

Sony HCD-RG270 Specifications

General

Brand	Sony
Model	HCD-RG270
Category	Car Receiver
Language	English