Read Sony CMT-EH55DAB / HCD-EH55DAB Service Manual online
HCD-EH55DAB
2
1.
SERVICING NOTES
.............................................
3
2. GENERAL
.................................................................. 4
3. DISASSEMBLY
3-1. Disassembly .................................................................... 6
3-2. Rear Cabinet Block ......................................................... 6
3-3. Front Cabinet Block, Top Cabinet Block,
MAIN
3-2. Rear Cabinet Block ......................................................... 6
3-3. Front Cabinet Block, Top Cabinet Block,
MAIN
Board
...................................................................
7
3-4. MF-EH10 (Tape Mechanism Deck), Cassette Lid .......... 7
3-5. Base Unit Block (BU-K8BD90-WOD) .......................... 8
3-6. Optical Pick-Up Block (KSM-213CDP) ........................ 8
3-5. Base Unit Block (BU-K8BD90-WOD) .......................... 8
3-6. Optical Pick-Up Block (KSM-213CDP) ........................ 8
4.
TEST MODE
............................................................
9
5. MECHANICAL
ADJUSTMENTS
...................... 10
6. ELECTRICAL
ADJUSTMENTS
........................ 10
7. DIAGRAMS
7-1. Block Diagram - CD SERVO Section - .......................... 12
7-2. Block Diagram - MAIN Section - ................................... 13
7-3. Block
7-2. Block Diagram - MAIN Section - ................................... 13
7-3. Block
Diagram
- PANEL, POWER SUPPLY Section - ........................... 14
7-4. Printed Wiring Board - CD Board - ................................ 16
7-5. Schematic Diagram - CD Board - ................................... 17
7-6. Printed Wiring Board - USB Board - .............................. 18
7-7. Schematic Diagram - USB Board - ................................. 19
7-8. Printed Wiring Board - PANEL Board - ......................... 20
7-9. Schematic Diagram - PANEL Board - ............................ 21
7-10. Printed Wiring Board - MAIN Board - ........................... 22
7-11. Schematic Diagram - MAIN Board (1/3) - ..................... 23
7-12. Schematic Diagram - MAIN Board (2/3) - ..................... 24
7-13. Schematic Diagram - MAIN Board (3/3) - ..................... 25
7-14. Printed Wiring Board - PT-VBUS Board - ..................... 26
7-15. Schematic Diagram - PT-VBUS Board - ........................ 26
7-5. Schematic Diagram - CD Board - ................................... 17
7-6. Printed Wiring Board - USB Board - .............................. 18
7-7. Schematic Diagram - USB Board - ................................. 19
7-8. Printed Wiring Board - PANEL Board - ......................... 20
7-9. Schematic Diagram - PANEL Board - ............................ 21
7-10. Printed Wiring Board - MAIN Board - ........................... 22
7-11. Schematic Diagram - MAIN Board (1/3) - ..................... 23
7-12. Schematic Diagram - MAIN Board (2/3) - ..................... 24
7-13. Schematic Diagram - MAIN Board (3/3) - ..................... 25
7-14. Printed Wiring Board - PT-VBUS Board - ..................... 26
7-15. Schematic Diagram - PT-VBUS Board - ........................ 26
8.
EXPLODED VIEWS
8-1. Overall
Section
............................................................... 36
8-2. Front Cabinet Section ..................................................... 37
8-3. Top Cabinet Section ........................................................ 38
8-4. Base Unit Section (BU-K8BD90-WOD) ........................ 39
8-3. Top Cabinet Section ........................................................ 38
8-4. Base Unit Section (BU-K8BD90-WOD) ........................ 39
9.
ELECTRICAL PARTS LIST
.............................. 40
TABLE OF CONTENTS
NOTES ON CHIP COMPONENT REPLACEMENT
•
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
This appliance is classifi ed as
a CLASS 1 LASER product.
This marking is located on the
rear or bottom exterior.
a CLASS 1 LASER product.
This marking is located on the
rear or bottom exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
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