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Sony HCD-HX7 Service Manual - Page 70

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HCD-HX3/HX5/HX7 7-7. LOADING MECHANISM SECTION 302 not supplied not supplied 301 not supplied (MOTOR board) 305 304 303 205 base unit section 305 304 305 303 306 Ref. No. 301 302 303 304 Part No. Description A-1242-967-A LOADING (BK) ASSY 3-080-478-01 BELT 4-985-672-01 SCREW (+PTPWH M2.6), FLOATING 4-227-045-41 SPRING (INSULATOR) Remark Ref. No. 305 306 306 Part No. Description 4-229-005-41 INSULATOR Remark 1-832-615-21 CABLE, FLEXIBLE FLAT (21 CORE) (HX7) 1-832-635-21 CABLE, FLEXIBLE FLAT (25 CORE) (HX3/HX5) 70

Section	Page
COVER	1
TABLE OF CONTENTS	3
1. SERVICING NOTES	4
2. GENERAL	5
3. DISASSEMBLY	9
3-1. DISASSEMBLY FLOW	9
3-2. PANEL (TOP)	10
3-3. FRONT PANEL BLOCK	10
3-4. MAIN BOARD (HX3/HX5)	11
3-5. MAIN BOARD/XM BOARD (HX7)	11
3-6. SWITCHING POWER BOARD/SUB POWER BOARD	12
3-7. LOADING MECHANISM BLOCK	12
3-8. BASE UNIT	13
3-9. BELT	13
3-10. OP BASE ASSY (KSM-213D)	14
4. TEST MODE	15
5. ELECTRICAL CHECKS	17
6. DIAGRAMS	18
6-1. Block Diagram – CD SERVO Section –	18
6-2. Block Diagram – TUNER/USB/BLUETOOTH Section –	19
6-3. Block Diagram – MAIN Section –	20
6-4. Block Diagram – AMP Section –	21
6-5. Block Diagram – PANEL/POWER SUPPLY Section –	22
6-6. PRINTED WIRING BOARDS – CD Section –	24
6-7. SCHEMATIC DIAGRAM – CD Section –	25
6-8. PRINTED WIRING BOARDS – USB Section (HX3/HX5) –	26
6-9. SCHEMATIC DIAGRAM – USB Section (HX3/HX5) –	27
6-10. PRINTED WIRING BOARDS – BLUETOOTH Section (HX5/HX7) –	28
6-11. SCHEMATIC DIAGRAM – BLUETOOTH Section (HX5/HX7) –	29
6-12. PRINTED WIRING BOARDS – XM Section (HX7) –	30
6-13. SCHEMATIC DIAGRAM – XM Section (HX7) –	31
6-14. PRINTED WIRING BOARD – MAIN Section –	32
6-15. SCHEMATIC DIAGRAM – MAIN Section (1/3) –	33
6-16. SCHEMATIC DIAGRAM – MAIN Section (2/3) –	34
6-17. SCHEMATIC DIAGRAM – MAIN Section (3/3) –	35
6-18. PRINTED WIRING BOARD – AMP Section (HX3/HX7) –	36
6-19. SCHEMATIC DIAGRAM – AMP Section (HX3/HX7) –	37
6-20. PRINTED WIRING BOARD – AMP Section (HX5) –	38
6-21. SCHEMATIC DIAGRAM – AMP Section (HX5) –	39
6-22. PRINTED WIRING BOARD – OUTPUT Section –	40
6-23. SCHEMATIC DIAGRAM – OUTPUT Section –	40
6-24. PRINTED WIRING BOARDS – PANEL Section –	42
6-25. SCHEMATIC DIAGRAM – PANEL Section –	43
6-26. PRINTED WIRING BOARDS – POWER SUPPLY Section –	44
6-27. SCHEMATIC DIAGRAM – POWER SUPPLY Section –	45
7. EXPLODED VIEWS	64
7-1. PANEL SECTION	64
7-2. CHASSIS (TOP) SECTION	65
7-3. PANEL KEY SECTION	66
7-4. FRONT PANEL SECTION	67
7-5. MAIN SECTION	68
7-6. CHASSIS SECTION	69
7-7. LOADING MECHANISM SECTION	70
7-8. BASE UNIT SECTION (BU-K6BD90-WOD: HX7) (BU-K6BD90U-WOD: HX3/HX5)	71
8. ELECTRICAL PARTS LIST	72
AMP	72
ANT	75
BT	75
CD	76
FRONT PANEL	78
HEADPHONE	79
MAIN	79
MOTOR	84
SPEAKER	84
SUB POWER	84
SWITCHING POWER	84
TOP PANEL (FUNCTION)	86
TOP PANEL (PLAY)	86
USB	87
USB POWER	88
XM	88
XM REGULATOR	89