CDP-XA555ES - Sony Audio Service Manual (repair manual). Page 2

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2
TABLE  OF  CONTENTS
1.
SERVICING  NOTES
...............................................
3
2.
GENERAL
...................................................................
6
3.
DISASSEMBLY
.........................................................
8
4.
TEST  MODE
.............................................................. 11
5.
ELECTRICAL  ADJUSTMENTS
......................... 13
6.
DIAGRAMS
6-1. Block Diagram  – SERVO Section – .............................. 15
6-2. Block Diagram  – MAIN Section – ................................ 16
6-3. Notes for Printed Wiring Board
and Schematic Diagram .................................................. 17
6-4. Printed Wiring Board
– SERVO Board (Component Side) – ............................ 18
6-5. Printed Wiring Board
– SERVO Board (Conductor Side) – .............................. 19
6-6. Schematic Diagram – SERVO Board (1/2) – ................. 20
6-7. Schematic Diagram – SERVO Board (2/2) – ................. 21
6-8. Printed Wiring Boards
– BSL/FL RELAY/FLEX RELAY/
LOADING MOTOR/LOADING SW Boards – ............. 22
6-9. Schematic Diagram
– BSL/FL RELAY/FLEX RELAY/
LOADING MOTOR/LOADING SW Boards – ............. 23
6-10. Printed Wiring Board
– AUDIO Board (Component Side) – ............................ 24
6-11. Printed Wiring Board
– AUDIO Board (Conductor Side) – .............................. 25
6-12. Schematic Diagram – AUDIO Board (1/2) – ................. 26
6-13. Schematic Diagram – AUDIO Board (2/2) – ................. 27
6-14. Printed Wiring Boards  – COAX OUT/
D/O SW/LINE/OPT OUT/VR Boards – ........................ 28
6-15. Schematic Diagram  – COAX OUT/
D/O SW/LINE/OPT OUT/VR Boards – ........................ 29
6-16. Printed Wiring Boards  – KEY-L/KEY-R Boards – ....... 30
6-17. Schematic Diagram  – KEY-L/KEY-R Boards – ........... 31
6-18. Printed Wiring Board  – DISPLAY Board – .................. 32
6-19. Schematic Diagram  – DISPLAY Board – ..................... 33
6-20. Printed Wiring Boards
– AC/POWER (Component Side)/SW Boards – ............ 34
6-21. Printed Wiring Board
– POWER Board (Conductor Side) – ............................. 35
6-22. Schematic Diagram  – AC/POWER/SW Boards – ........ 36
6-23. IC Pin Function Description ........................................... 42
7.
EXPLODED  VIEWS
................................................ 48
8.
ELECTRICAL  PARTS  LIST
............................... 55
SAFETY-RELATED  COMPONENT  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  WHOSE  PART  NUMBERS  APPEAR  AS
SHOWN  IN  THIS  MANUAL  OR  IN  SUPPLEMENTS  PUB-
LISHED  BY  SONY.
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.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
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