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HCD-XG55
TABLE OF CONTENTS
1. SERVICING NOTES
······················································· 3
2. GENERAL
Location of Controls ······························································ 4
Setting the Time ····································································· 5
3. DISASSEMBLY
3-1. Case ················································································· 7
3-2. Front Panel Section ························································· 7
3-3. Tape Mechanism Deck (TCM-230PWR42),
Cover (TC) ······································································ 8
3-4. Holder Deck B Assy, Holder Deck A Assy,
Lid (TC) Assy ·································································· 8
3-5. LEAF SW Board, AUDIO Board ··································· 9
3-6. TC (B) Board, TC (A) Board, PANEL FL Board ········· 10
3-7. PANEL VR Board ························································· 10
3-8. HEADPHONE Board, FRONT INPUT Board ············· 11
3-9. CD-L Board, CD-R (1) Board, CD-R (2) Board ·········· 11
3-10. DC Fan (M901), MAIN Board, Tuner (FM/AM) ······· 12
3-11. PA Board ····································································· 12
3-12. SUB TRANS Board, TRANS Board ·························· 13
3-13. CD Mechanism Deck (CDM37M-5BD32L) ·············· 14
3-14. Base Unit (BU-5BD32L) ············································ 15
3-15. BD Board ···································································· 15
3-16. Optical Pick-up (KSS-213DH) ··································· 16
3-17. Disc Table ··································································· 16
3-18. LED Board, CD MOTOR Board,
TABLE SENSOR Board ············································· 17
4. TEST MODE ···································································· 18
5. MECHANICAL ADJUSTMENTS ····························· 20
6. ELECTRICAL ADJUSTMENTS
Deck section ········································································· 20
CD Section ··········································································· 23
7. DIAGRAMS ······································································ 24
7-1. Block Diagram
-“ CD SERVO Section -“ ················································· 26
-“ TUNER/TAPE DECK Section -“ ································ 27
-“ MAIN Section -“ ························································· 28
-“
DISPLAY/KEY CONTROL/POWER SUPPLY Section -“ ····· 297-2. Printed Wiring Board -“ BD Board -“ ····························· 30
7-3. Schematic Diagram -“ BD Board -“ ······························· 31
7-4. Printed Wiring Boards -“ CD MOTOR Section -“ ·········· 32
7-5. Schematic Diagram -“ CD MOTOR Section -“ ·············· 33
7-6. Printed Wiring Board -“ AUDIO Board -“ ······················ 34
7-7. Schematic Diagram -“ AUDIO Board -“ ························· 35
7-8. Printed Wiring Board -“ LEAF SW Board -“ ················· 36
7-9. Schematic Diagram -“ LEAF SW Board -“ ···················· 36
7-10. Schematic Diagram -“ MAIN Board (1/3) -“ ················ 37
7-11. Schematic Diagram -“ MAIN Board (2/3) -“ ················ 38
7-12. Schematic Diagram -“ MAIN Board (3/3) -“ ················ 39
7-13. Printed Wiring Board -“ MAIN Board -“ ······················ 40
7-14. Printed Wiring Board -“ PA Board -“ ···························· 41
7-15. Schematic Diagram -“ PA Board -“ ······························ 42
7-16. Printed Wiring Boards
-“ FRONT INPUT/HEADPHONES Boards -“ ············· 43
7-17. Schematic Diagram
-“ FRONT INPUT/HEADPHONES Boards -“ ············· 44
7-18. Printed Wiring Board -“ PANEL FL Board -“ ·············· 45
7-19. Schematic Diagram -“ PANEL FL Board -“ ················· 46
7-20. Printed Wiring Board -“ PANEL VR Board -“ ············· 47
7-21. Schematic Diagram -“ PANEL VR Board -“ ················ 48
7-22. Printed Wiring Boards
-“ TC (A)/TC (B)/CD-L/CD-R (1)/CD-R (2) Boards -“ 49
7-23. Schematic Diagram
-“ TC (A)/TC (B)/CD-L/CD-R (1)/CD-R (2) Boards -“ 50
7-24. Printed Wiring Board
-“ TRANSFORMER Section-“ ····································· 51
7-25. Schematic Diagram
-“ TRANSFORMER Section-“ ····································· 51
7-26. IC Block Diagrams ····················································· 52
7-27. IC Pin Function Description ······································· 54
8. EXPLODED VIEWS
8-1. Case, Back Panel Section ·············································· 59
8-2. Front Panel Section-1 ···················································· 60
8-3. Front Panel Section-2 ···················································· 61
8-4. Chassis Section ····························································· 62
8-5. Tape Mechanism Deck Section-1 (TCM-230PWR42) · 63
8-6. Tape Mechanism Deck Section-2 (TCM-230PWR42) · 64
8-7. CD Mechanism Deck Section (CDM37M-5BD32L) ··· 65
8-8. Base Unit Section (BU-5BD32L) ································· 66
9. ELECTRICAL PARTS LIST ······································· 67
