Table Of Contents - Sony HCD-W550 Service Manual

1. GENERAL
······································································ 3
2. DISASSEMBLY
2-1. Back Panel, CD Block Removal ········································· 4
2-2. Cassette Lid (A)/(B) Assy, Mechanism Deck Removal ···· 4
2-3. Main Board, Resistor Board, Front Panel Assy Removal ·· 5
3. ADJUSTMENTS
3-1. Mechanical Adjustment ······················································ 6
3-2. Electrical Adjustment ························································· 6
4. DIAGRAMS
4-1. Block Diagram ································································· 11
4-2. Circuit Boards Location ··················································· 13
4-3. Schematic Diagram - Audio Section - ························· 14
4-4. Printed Wiring Board - Audio Section - ······················ 17
4-5. Printed Wiring Board - BD Section - ·························· 19
4-6. Schematic Diagram - BD Section - ····························· 21
4-7. Printed Wiring Board - Motor Section - ······················ 23
4-8. Schematic Diagram - Motor Section - ························ 25
4-9. Schematic Diagram - Panel Section - ························· 27
4-10. Printed Wiring Board - Panel Section - ······················· 29
4-11. Printed Wiring Board - Main Section - ······················· 32
4-12. Schematic Diagram - Main Section - ·························· 35
4-13. IC Block Diagrams ··························································· 38
4-14. IC Pin Function ································································ 40
SERVICING NOTE
• Supplying power during servicing
This equipment cannot operate without using a separate power supply. Connect to the STR-W550/W770AV when performing service
work.
To apply power set the SYSTEM POWER switch on the Tuner/Amp to ON.
When other units are not available use the PFJ-1 power supply jig.
When using the PFJ-1, simultaneously press the CD STOP button and the DECK A ) (fast rightward) button to turn on the power.
[Connection Diagram]

TABLE OF CONTENTS

PFJ-1
(Power Supply Jig)
Connector Cable 17P
(Supplied with set)
POWER SW
FH-E939,838,737,
MHC-6600,5600,
CDP/TC
Conversion Board
(J-2501-138-A)
5. EXPLODED VIEWS
5-1. Main Section ····································································· 42
5-2. Front Panel Section ·························································· 43
5-3. CD Mechanism Deck Section-1 (CDM38-5BD29A) ····· 44
5-4. CD Mechanism Deck Section-2 (CDM38-5BD29A) ····· 45
5-5. Base Unit Section (BU-5BD29A) ···································· 46
5-6. Tape Mechanism Deck Section-1 (TCM-220WR2E) ······ 47
5-7. Tape Mechanism Deck Section-2 (TCM-220WR2E) ······ 48
6. ELECTRICAL PARTS LIST
Set
CNB108 17P
SYSTEM CONTROL
- 2 -
··································· 49