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Sony STR-K7100 Service Manual - Page 10

Digital Board, 5. Main Board

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STR-K7100 2-4. DIGITAL BOARD 2 CNP503 (8P) 1 CNP505 (7P) 3 CNP512 (3P) 5 DIGITAL board 4 screw (+BVTP 3 × 8) 2-5. MAIN BOARD SECTION 4 CN915 (6P) 5 screw (+BV3 (3-CR)) 6 two screws (+BV3 (3-CR)) 3 CNP912 (2P) 1 CNP801 (5P) 2 CNP802 (5P) 7 two screws (+BV3 (3-CR)) 8 MAIN board section 10

Section	Page
COVER	1
TABLE OF CONTENTS	4
1. GENERAL	5
Description and location of parts	5
2. DISASSEMBLY	8
2-1. CASE	8
2-2. BACK PANEL SECTION	9
2-3. FRONT PANEL SECTION	9
2-4. DIGITAL BOARD	10
2-5. MAIN BOARD SECTION	10
2-6. STANDBY BOARD	11
3. TEST MODE	12
4. FM TUNER CHECK	13
5. DIAGRAMS	14
5-1. CIRCUIT BOARDS LOCATION	14
5-2. BLOCK DIAGRAM — TUNER/AUDIO SECTION —	15
5-3. BLOCK DIAGRAM — DIGITAL SECTION —	16
5-4. BLOCK DIAGRAM — VIDEO SECTION —	17
5-5. BLOCK DIAGRAM — HDMI SW SECTION —	18
5-6. BLOCK DIAGRAM — XM SECTION —	19
5-7. BLOCK DIAGRAM — KEY/DISPLAY SECTION —	20
5-8. BLOCK DIAGRAM — OUTPUT/POWER SECTION —	21
Waveforms	22
5-9. PRINTED WIRING BOARDS — MAIN SECTION —	23
5-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) —	24
5-11. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) —	25
5-12. PRINTED WIRING BOARD — DIGITAL SECTION (1/2) —	26
5-13. PRINTED WIRING BOARD — DIGITAL SECTION (2/2) —	27
5-14. SCHEMATIC DIAGRAM — DIGITAL SECTION (1/3) —	28
5-15. SCHEMATIC DIAGRAM — DIGITAL SECTION (2/3) —	29
5-16. SCHEMATIC DIAGRAM — DIGITAL SECTION (3/3) —	30
5-17. PRINTED WIRING BOARDS — VIDEO SECTION —	31
5-18. SCHEMATIC DIAGRAM — VIDEO SECTION —	32
5-19. PRINTED WIRING BOARD — HDMI SW SECTION —	33
5-20. SCHEMATIC DIAGRAM — HDMI SW SECTION —	34
5-21. PRINTED WIRING BOARD — XM SECTION —	35
5-22. SCHEMATIC DIAGRAM — XM SECTION —	36
5-23. PRINTED WIRING BOARDS — DCAC, POWER KEY SECTION —	37
5-24. SCHEMATIC DIAGRAM — DCAC, POWER KEY SECTION —	37
5-25. PRINTED WIRING BOARD — DISPLAY SECTION —	38
5-26. SCHEMATIC DIAGRAM — DISPLAY SECTION —	39
5-27. PRINTED WIRING BOARD — POWER SECTION —	40
5-28. SCHEMATIC DIAGRAM — POWER SECTION —	40
5-29. PRINTED WIRING BOARD — DCDC SECTION —	41
5-30. SCHEMATIC DIAGRAM — DCDC SECTION —	41
IC Block Diagrams	42
IC Pin Descriptions	48
6. EXPLODED VIEWS	55
6-1. CASE SECTION	55
6-2. FRONT PANEL SECTION	56
6-3. BACK PANEL SECTION	57
6-4. CHASSIS SECTION	58
7. ELECTRICAL PARTS LIST	59
DCAC	59
DCDC	59
DIGITAL	59
DISPLAY	63
HDMI SW	64
HEADPHONE	65
MAIN	65
POWER KEY	69
STANDBY	69
VIDEO	70
VIDEO 3	70
XM	71