Sony CX-JN44 Service Manual page 3

Table of Contents

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1.
SERVICING NOTES
2.
GENERAL
................................................................... 7
3.
DISASSEMBLY
3-1. Disassembly Flow ........................................................... 9
3-2. Case (Side-L/R) ............................................................... 10
3-3. Case (Top) ....................................................................... 10
3-4. Tray Panel ........................................................................ 11
3-5. CD Mechanism Deck (CDM74-K6BD80) ...................... 11
3-6. Front Panel Block ............................................................ 12
3-7. Back Panel Section .......................................................... 12
3-8. MAIN Board .................................................................... 13
3-9. Tape Mechanism Deck (CWM43FF13) .......................... 13
3-10. Table Assy ....................................................................... 14
3-11. MOTOR (TB) Board ....................................................... 14
3-12. MOTOR (LD) Board ....................................................... 15
3-13. Base Unit (BU-K6BD80A) ............................................. 15
3-14. Motor Gear Assy (SLED) (M102), CD Board ................ 16
3-15. Optical Pick-up (KSM-213DAP) .................................... 16
4.
TEST MODE
............................................................... 17
5.
ELECTRICAL CHECK
6.
DIAGRAMS
6-1. Block Diagram – SERVO Section – ............................... 22
6-2. Block Diagram – MAIN Section – ................................. 23
6-3. Block Diagram
– PANEL/POWER SUPPLY Section – ........................... 24
6-4. Printed Wiring Board – BD Board – .............................. 26
6-5. Schematic Diagram – BD Board – ................................. 27
6-6. Printed Wiring Boards – CHANGER Section – ............. 28
6-7. Schematic Diagram – CHANGER Section – ................. 29
6-8. Printed Wiring Board
– CDMP3 CONNECT Board – ....................................... 30
6-9. Schematic Diagram
– CDMP3 CONNECT Board – ....................................... 31
6-10. Schematic Diagram – MAIN Section (1/4) – ................. 32
6-11. Schematic Diagram – MAIN Section (2/4) – ................. 33
6-12. Schematic Diagram – MAIN Section (3/4) – ................. 34
6-13. Schematic Diagram – MAIN Section (4/4) – ................. 35
6-14. Printed Wiring Boards – MAIN Section – ..................... 36
6-15. Printed Wiring Board – PANEL Section – ..................... 37
6-16. Schematic Diagram – PANEL Section (1/2) – ............... 38
6-17. Schematic Diagram – PANEL Section (2/2) – ............... 39
6-18. Printed Wiring Board – POWER AMP Section – .......... 40
6-19. Schematic Diagram – POWER AMP Section – ............. 41
6-20. Printed Wiring Boards – TRANS Section – ................... 42
6-21. Schematic Diagram – TRANS Section – ....................... 43
6-22. IC Pin Function Description ............................................ 47
TABLE OF CONTENTS
................................................ 4
............................................ 21
7.
EXPLODED VIEWS
7-1. Case Section .................................................................... 50
7-2. Tape Mechanism Deck Section (CWM43FF13) ............. 51
7-3. Cassette Box Section ....................................................... 52
7-4. Front Panel Section ......................................................... 53
7-5. Back Panel Section .......................................................... 54
7-6. Chassis Section ................................................................ 55
7-7. CD Mechanism Deck Section-1 (CDM74-K6BD80) ..... 56
7-8. CD Mechanism Deck Section-2 (CDM74-K6BD80) ..... 57
7-10. CD Mechanism Deck Section-3 (CDM74-K6BD80) ..... 58
7-11. Base Unit Section (BU-K6BD80A) ................................ 59
8.
ELECTRICAL PARTS LIST
CX-JN44
.................................. 60
3

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