Read Sony HCD-RG221 / MHC-RG221 Service Manual online
3
HCD-RG221
TABLE OF CONTENTS
1. SERVICING NOTE
·························································· 4
2. GENERAL
·········································································· 5
3. DISASSEMBLY
3-1. Cover (Top) ····································································· 8
3-2. CD Door ·········································································· 8
3-3. Front Panel Section ························································· 9
3-4. CD Mechanism Deck (CDM74-F1BD81) ······················ 9
3-5. Tape Mechanism Deck, GAME JACK Board ··············· 10
3-6. PANEL Board ······························································· 10
3-7. BACK PANEL Section, SUB-TRANS Board ·············· 11
3-8. Power Transformer ······················································· 11
3-9. MAIN Board ································································· 12
3-10. AMP Board ································································· 12
3-11. BD81A Board ····························································· 13
3-12. CONNECT Board ······················································· 13
3-13. DRIVER Board, SW Board ········································ 14
3-14. Optical Pick-up (KSM-215DCP/C2NP) ····················· 14
3-15. SENSOR Board ·························································· 15
3-16. MOTOR (TB) Board ··················································· 15
3-17. MOTOR (LD) Board ·················································· 16
3-2. CD Door ·········································································· 8
3-3. Front Panel Section ························································· 9
3-4. CD Mechanism Deck (CDM74-F1BD81) ······················ 9
3-5. Tape Mechanism Deck, GAME JACK Board ··············· 10
3-6. PANEL Board ······························································· 10
3-7. BACK PANEL Section, SUB-TRANS Board ·············· 11
3-8. Power Transformer ······················································· 11
3-9. MAIN Board ································································· 12
3-10. AMP Board ································································· 12
3-11. BD81A Board ····························································· 13
3-12. CONNECT Board ······················································· 13
3-13. DRIVER Board, SW Board ········································ 14
3-14. Optical Pick-up (KSM-215DCP/C2NP) ····················· 14
3-15. SENSOR Board ·························································· 15
3-16. MOTOR (TB) Board ··················································· 15
3-17. MOTOR (LD) Board ·················································· 16
4. TEST MODE
···································································· 17
5. DIAGRAMS
5-1. Block Diagrams – PANEL Section – ···························· 22
– MAIN Section – ······················································· 23
– BD/DRIVER Section – ············································ 24
– BD/DRIVER Section – ············································ 24
5-2. Printed Wiring Board – BD81A Section – ···················· 25
5-3. Schematic Diagram – BD81A Section – ······················ 26
5-4. Printed Wiring Board – CD MECHANISM Section – · 27
5-5. Schematic Diagram – CD MECHANISM Section – ···· 28
5-6. Printed Wiring Board – MAIN Section – ····················· 29
5-7. Schematic Diagram – MAIN Section (1/2) – ··············· 30
5-8. Schematic Diagram – MAIN Section (2/2) – ··············· 31
5-9. Printed Wiring Board – PANEL COMB Section – ······· 32
5-10. Schematic Diagram – PANEL COMB Section – ······· 33
5-11. Printed Wiring Board – PANEL Section – ·················· 34
5-12. Schematic Diagram – PANEL Section (1/2) – ··········· 35
5-13. Schematic Diagram – PANEL Section (2/2) – ··········· 36
5-14. Printed Wiring Board – TRANS Section – ················· 37
5-15. Printed Wiring Board – AMP Section – ······················ 38
5-16. Schematic Diagram – AMP POWER Section – ········· 39
5-17. IC Pin Function Description ······································· 42
5-3. Schematic Diagram – BD81A Section – ······················ 26
5-4. Printed Wiring Board – CD MECHANISM Section – · 27
5-5. Schematic Diagram – CD MECHANISM Section – ···· 28
5-6. Printed Wiring Board – MAIN Section – ····················· 29
5-7. Schematic Diagram – MAIN Section (1/2) – ··············· 30
5-8. Schematic Diagram – MAIN Section (2/2) – ··············· 31
5-9. Printed Wiring Board – PANEL COMB Section – ······· 32
5-10. Schematic Diagram – PANEL COMB Section – ······· 33
5-11. Printed Wiring Board – PANEL Section – ·················· 34
5-12. Schematic Diagram – PANEL Section (1/2) – ··········· 35
5-13. Schematic Diagram – PANEL Section (2/2) – ··········· 36
5-14. Printed Wiring Board – TRANS Section – ················· 37
5-15. Printed Wiring Board – AMP Section – ······················ 38
5-16. Schematic Diagram – AMP POWER Section – ········· 39
5-17. IC Pin Function Description ······································· 42
6. EXPLODED VIEWS
6-1. MAIN Section ······························································· 47
6-2. Front Panel Section ······················································· 48
6-3. MAIN Board Section ···················································· 49
6-4. CD Mechanism Deck Section -1 (CDM74-F1BD81) ··· 50
6-4. CD Mechanism Deck Section -2 (CDM74-F1BD81) ··· 51
6-2. Front Panel Section ······················································· 48
6-3. MAIN Board Section ···················································· 49
6-4. CD Mechanism Deck Section -1 (CDM74-F1BD81) ··· 50
6-4. CD Mechanism Deck Section -2 (CDM74-F1BD81) ··· 51
7. ELECTRICAL PARTS LIST
······································· 52
MODEL IDENTIFICATION
– Back Panel –
– Back Panel –
Model Name
Part No.
Argentina model
4-254-506-0
[]
Chilean and Peruvian models
4-254-507-0
[]
Mexican model
4-254-509-0
[]
120V AC Area in E model
4-254-799-0
[]
Part No.
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