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Sony HCD-EC68P Service Manual - Page 50

Sony HCD-EC68P Manual

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HCD-EC68P/EC78P 7-4. MAIN SECTION (EC78P) 153 not supplied (HI AMP board) not supplied not supplied 151 not supplied (REG board) 152 #1 154 #1 #4 #4 not supplied not supplied #1 154 #4 not supplied #1 not supplied (HOLD board) #1 not supplied (HOLD (PT) board) #1 #1 #1 #1 not supplied not supplied (LOW AMP board) PT003: EC68P/ PT004: EC78P #3 not supplied (PT board) #1 Ref. No. 151 151 151 151 152 Part No. Description Remark A-1379-655-A A-1379-713-A A-1426-105-A A-1426-163-A 1-831-744-21 MAIN BOARD, COMPLETE (EC78P: US, CND) MAIN BOARD, COMPLETE (EC68P: US) MAIN BOARD, COMPLETE (EC78P: UK) MAIN BOARD, COMPLETE (EC68P: AUS) CABLE, FLEXIBLE FLAT (5 CORE) 153 1-835-276-21 CABLE, FLEXIBLE FLAT (5 CORE) (EC78P) 154 3-905-609-31 SCREW (TRANSISTOR) Ref. No. 0 PT003 0 PT003 0 PT004 Part No. 1-445-346-11 1-445-476-11 1-445-343-11 Description Remark TRANSFORMER, POWER (EC68P: AUS) TRANSFORMER, POWER (EC68P: US) TRANSFORMER, POWER (EC78P: UK) 0 PT004 #1 #3 #4 1-445-345-11 7-685-647-79 7-685-880-09 7-685-645-79 TRANSFORMER, POWER (EC78P: US, CND) SCREW +BVTP 3X10 TYPE2 IT-3 SCREW +BVTT 4X6 (S) SCREW +BVTP 3X6 TYPE2 IT-3 50

Section	Page
COVER	1
TABLE OF CONTENTS	3
1. SERVICING NOTES	3
2. GENERAL	6
3. DISASSEMBLY	10
3-1. DISASSEMBLY FLOW	10
3-2. SIDE PANEL (L)/(R)	11
3-3. PANEL (TOP)	11
3-4. MAIN BOARD	12
3-5. FRONT PANEL BLOCK (EC78P: UK)	12
3-6. FRONT PANEL BLOCK (EC68P/EC78P: US, Canadian)	13
3-7. BACK PANEL BLOCK	13
3-8. 3 CD MECHANISM BLOCK (EC78P: UK)	14
3-9. BASE UNIT (EC78P: UK)	14
3-10. 1 CD MECHANISM BLOCK (EC68P/EC78P: US, Canadian)	15
3-11. BASE UNIT (EC68P/EC78P: US, Canadian)	15
3-12. BELT (EC68P/EC78P: US, Canadian)	16
3-13. BELT (EC78P: UK)	16
3-14. OP BASE ASSY (KSM-213D)	17
4. TEST MODE	18
5. ELECTRICAL ADJUSTMENTS	22
6. DIAGRAMS	25
6-1. BLOCK DIAGRAM - CD SERVO, TUNER Section -	25
6-2. BLOCK DIAGRAM - MAIN Section -	26
6-3. PRINTED WIRING BOARD - CD Board -	28
6-4. SCHEMATIC DIAGRAM - CD Board -	29
6-5. PRINTED WIRING BOARDS - MAIN Section -	30
6-6. SCHEMATIC DIAGRAM - MAIN Section (1/3) -	31
6-7. SCHEMATIC DIAGRAM - MAIN Section (2/3) -	32
6-8. SCHEMATIC DIAGRAM - MAIN Section (3/3) -	33
6-9. PRINTED WIRING BOARD - HI AMP Board (EC78P) -	34
6-10. SCHEMATIC DIAGRAM - HI AMP Board (EC78P) -	34
6-11. PRINTED WIRING BOARD - LOW AMP Board -	35
6-12. SCHEMATIC DIAGRAM - LOW AMP Board -	35
6-13. PRINTED WIRING BOARD - PANEL Board -	36
6-14. SCHEMATIC DIAGRAM - PANEL Board -	37
6-15. PRINTED WIRING BOARDS - KEY Section -	38
6-16. SCHEMATIC DIAGRAM - KEY Section -	38
6-17. PRINTED WIRING BOARD - MOTOR Board (EC68P/EC78P: US, Canadian models) -	39
6-18. SCHEMATIC DIAGRAM - MOTOR Board (EC68P/EC78P: US, Canadian models) -	39
6-19. PRINTED WIRING BOARD - PT Board -	40
6-20. SCHEMATIC DIAGRAM - PT Board -	41
7. EXPLODED VIEWS	47
7-1. PANEL SECTION	47
7-2. FRONT PANEL SECTION	48
7-3. CHASSIS SECTION	49
7-4. MAIN SECTION	50
7-5. 3 CD MECHANISM SECTION (EC78P: UK)(CDM88A-K6BD90-WOD)	51
7-6. 1 CD MECHANISM SECTION (EXCEPT EC78P: UK)(CDM77B-K6BD90-WOD)	52
8. ELECTRICAL PARTS LIST	53
CD	53
DMP	54
HI AMP	54
JACK	55
KEY CD	55
KEY POWER	55
LOW AMP	55
MAIN	56
MOTOR	60
PANEL	60
PT	63
REG	63