Read Sony CMT-L7HD / HCD-L7HD Service Manual online
4
HCD-L7HD
TABLE OF CONTENTS
1. SERVICING NOTES
······················································· 5
2. GENERAL
·········································································· 8
3. DISASSEMBLY
······························································ 10
3-1. Bottom Plate,Case ······················································· 11
3-2. Front Panel Section ····················································· 11
3-3. POWER Board, AM/FM Tuner ··································· 12
3-4. HDD Board, HDD SUB Board ··································· 12
3-5. MAIN Board ······························································· 13
3-6. Cover (HDD-Top), Cover (HDD-Bottom) ·················· 13
3-7. AMP Board, REG Board ············································· 14
3-8. Switching Regulator ···················································· 14
3-9. Indicator (BS), LED Board (R) ··································· 15
3-10. LED Board (L) ···························································· 15
3-11. FL Board ····································································· 16
3-12. TOUCH SW Board, SWITCH Board ························· 16
3-13. CD Board ····································································· 17
3-14. BD Board ····································································· 17
3-15. Base Unit (BU-31BD63) ············································· 18
3-16. BU-31 Assy, Sled Motor Assy (M102) ······················· 18
3-17. CD Mechanism (CDM71B) ········································ 19
3-18. L.MOTOR Board ························································· 19
3-19. C.MOTOR Board, L.SENSOR Board ························· 20
3-20. ENCODER Board, D.SENSOR Board ······················· 21
3-21. Pulley (RTR) Assy, Pulley (RTL) Assy,
3-2. Front Panel Section ····················································· 11
3-3. POWER Board, AM/FM Tuner ··································· 12
3-4. HDD Board, HDD SUB Board ··································· 12
3-5. MAIN Board ······························································· 13
3-6. Cover (HDD-Top), Cover (HDD-Bottom) ·················· 13
3-7. AMP Board, REG Board ············································· 14
3-8. Switching Regulator ···················································· 14
3-9. Indicator (BS), LED Board (R) ··································· 15
3-10. LED Board (L) ···························································· 15
3-11. FL Board ····································································· 16
3-12. TOUCH SW Board, SWITCH Board ························· 16
3-13. CD Board ····································································· 17
3-14. BD Board ····································································· 17
3-15. Base Unit (BU-31BD63) ············································· 18
3-16. BU-31 Assy, Sled Motor Assy (M102) ······················· 18
3-17. CD Mechanism (CDM71B) ········································ 19
3-18. L.MOTOR Board ························································· 19
3-19. C.MOTOR Board, L.SENSOR Board ························· 20
3-20. ENCODER Board, D.SENSOR Board ······················· 21
3-21. Pulley (RTR) Assy, Pulley (RTL) Assy,
Belt (CDM71), Belt (Roller) (L) ································· 22
3-22. Pulley (SPT) Assy, Gear (RT) Assy, Gear(KT),
Belt (CDM71) ····························································· 24
4. TEST MODE
···································································· 26
5. ELECTRICAL ADJUSTMENTS
······························· 30
6. DIAGRAMS
······································································ 31
6-1. Block Diagrams ··························································· 31
6-2. Circuit Boards Location ·············································· 34
6-3. Printed Wiring Board – BD Section (Side A) – ··········· 35
6-4. Printed Wiring Board – BD Section (Side B) – ··········· 36
6-5. Schematic Diagram – BD Section – ···························· 37
6-6. Printed Wiring Board – MOTOR Section – ················ 38
6-7. Schematic Diagram – MOTOR Section – ··················· 39
6-8. Printed Wiring Board – HDD1 Section (Side A) – ····· 40
6-9. Printed Wiring Board – HDD1 Section (Side B) – ····· 41
6-10. Schematic Diagram – HDD1 Section (1/2) – ·············· 42
6-11. Schematic Diagram – HDD1 Section (2/2) – ·············· 43
6-12. Printed Wiring Board – HDD2 Section – ···················· 44
6-13. Schematic Diagram – HDD2 Section (1/2) – ·············· 45
6-14. Schematic Diagram – HDD2 Section (2/2) – ·············· 46
6-15. Printed Wiring Board – MAIN Section (Side A) – ····· 47
6-16. Printed Wiring Board – MAIN Section (Side B) – ····· 48
6-17. Schematic Diagram – MAIN Section (1/2) – ·············· 49
6-18. Schematic Diagram – MAIN Section (2/2) – ·············· 50
6-19. Printed Wiring Board – CD Section – ························· 51
6-20. Schematic Diagram – CD Section – ···························· 52
6-21. Printed Wiring Board – AMP Section (Side A) – ········ 53
6-22. Printed Wiring Board – AMP Section (Side B) – ········ 54
6-23. Schematic Diagram – AMP Section – ························· 55
6-24. Printed Wiring Board – DISPLAY Section – ·············· 56
6-25. Schematic Diagram – DISPLAY Section – ················· 57
6-26. Printed Wiring Board – CONTROL Section – ············ 58
6-27. Schematic Diagram – CONTROL Section – ··············· 59
6-28. Printed Wiring Board – POWER Section – ················· 60
6-29. Schematic Diagram – POWER Section – ··················· 61
6-30. IC Pin Function Descriptions ······································ 63
6-2. Circuit Boards Location ·············································· 34
6-3. Printed Wiring Board – BD Section (Side A) – ··········· 35
6-4. Printed Wiring Board – BD Section (Side B) – ··········· 36
6-5. Schematic Diagram – BD Section – ···························· 37
6-6. Printed Wiring Board – MOTOR Section – ················ 38
6-7. Schematic Diagram – MOTOR Section – ··················· 39
6-8. Printed Wiring Board – HDD1 Section (Side A) – ····· 40
6-9. Printed Wiring Board – HDD1 Section (Side B) – ····· 41
6-10. Schematic Diagram – HDD1 Section (1/2) – ·············· 42
6-11. Schematic Diagram – HDD1 Section (2/2) – ·············· 43
6-12. Printed Wiring Board – HDD2 Section – ···················· 44
6-13. Schematic Diagram – HDD2 Section (1/2) – ·············· 45
6-14. Schematic Diagram – HDD2 Section (2/2) – ·············· 46
6-15. Printed Wiring Board – MAIN Section (Side A) – ····· 47
6-16. Printed Wiring Board – MAIN Section (Side B) – ····· 48
6-17. Schematic Diagram – MAIN Section (1/2) – ·············· 49
6-18. Schematic Diagram – MAIN Section (2/2) – ·············· 50
6-19. Printed Wiring Board – CD Section – ························· 51
6-20. Schematic Diagram – CD Section – ···························· 52
6-21. Printed Wiring Board – AMP Section (Side A) – ········ 53
6-22. Printed Wiring Board – AMP Section (Side B) – ········ 54
6-23. Schematic Diagram – AMP Section – ························· 55
6-24. Printed Wiring Board – DISPLAY Section – ·············· 56
6-25. Schematic Diagram – DISPLAY Section – ················· 57
6-26. Printed Wiring Board – CONTROL Section – ············ 58
6-27. Schematic Diagram – CONTROL Section – ··············· 59
6-28. Printed Wiring Board – POWER Section – ················· 60
6-29. Schematic Diagram – POWER Section – ··················· 61
6-30. IC Pin Function Descriptions ······································ 63
7. EXPLODED VIEWS
······················································ 72
7-1. Case Section ································································ 72
7-2. Chassis Section ···························································· 73
7-3. Frot Panel Section ······················································· 74
7-4. Mechanism Section(CDM71B)-1 ································ 75
7-5. Mechanism Section(CDM71B)-2 ································ 76
7-6. Base Unit (BU-31BD63) ············································· 77
7-2. Chassis Section ···························································· 73
7-3. Frot Panel Section ······················································· 74
7-4. Mechanism Section(CDM71B)-1 ································ 75
7-5. Mechanism Section(CDM71B)-2 ································ 76
7-6. Base Unit (BU-31BD63) ············································· 77
8. ELECTRICAL PARTS LIST
······································· 78
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