XAV-77 - Sony Car Audio Service Manual (repair manual). Page 2

Read Sony XAV-77 Service Manual online

2
XAV-77
1.
SERVICING  NOTES
...............................................
3
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
9
3-2. Front Panel Assy .............................................................
9
3-3. Case (Upper) Assy .......................................................... 10
3-4. MAIN Board ................................................................... 11
3-5. Motor Assy (M701) ......................................................... 12
3-6. Setting of Lead from Motor Assy (M701) ..................... 12
3-7. Monitor ............................................................................ 13
3-8. Monitor (F)/(R) Cabinet Assy ......................................... 13
3-9. LCD ................................................................................. 14
3-10. MONITOR Board ........................................................... 14
4.
ASSEMBLY
4-1. Assembly of Flat Cable ................................................... 15
5.
ELECTRICAL  ADJUSTMENTS
......................... 16
6.
DIAGRAMS
6-1. Block Diagram  – MAIN Section – ................................ 21
6-2. Block Diagram
– DISPLAY/BUS CONTROL Section – ........................ 22
6-3. Block Diagram  – MONITOR Section – ........................ 23
6-4. Block Diagram  – POWER SUPPLY Section – ............. 24
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 25
6-6. Schematic Diagram  – FM/MAIN (1/5) Boards – ......... 27
6-7. Schematic Diagram  – MAIN Board (2/5) – .................. 28
6-8. Schematic Diagram  – MAIN Board (3/5) – .................. 29
6-9. Schematic Diagram  – MAIN Board (4/5) – .................. 30
6-10. Schematic Diagram  – MAIN Board (5/5) – .................. 31
6-11. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 32
6-12. Printed Wiring Boards
– FM/MAIN (Conductor Side) Boards – ....................... 33
6-13. Printed Wiring Board  – FRONT Board – ...................... 34
6-14. Schematic Diagram  – FRONT Board – ......................... 35
6-15. Printed Wiring Board
– MONITOR Board (Component Side) – ...................... 36
6-16. Printed Wiring Board
– MONITOR Board (Conductor Side) – ........................ 37
6-17. Schematic Diagram  – MONITOR Board (1/3) – .......... 38
6-18. Schematic Diagram  – MONITOR Board (2/3) – .......... 39
6-19. Schematic Diagram  – MONITOR Board (3/3) – .......... 40
6-20. Printed Wiring Boards  – ANGLE/KEY Boards – ......... 42
6-21. Schematic Diagram  – ANGLE/KEY Boards – ............. 43
6-22. Printed Wiring Board  – MOTOR Board – ..................... 44
6-23. Schematic Diagram  – MOTOR Board – ....................... 45
6-24. Printed Wiring Boards  – PULSE/SWITCH Boards – ... 46
6-25. Schematic Diagram – PULSE/SWITCH Boards – ........ 46
6-26. IC Pin Function Description ........................................... 52
7.
EXPLODED  VIEWS
7-1. Front Panel Section ......................................................... 61
7-2. Case (Upper) Assy Section ............................................. 62
7-3. Open Close Motor Section .............................................. 63
7-4. Case (Lower) Assy Section ............................................. 64
7-5. Monitor Section ............................................................... 65
8.
ELECTRICAL  PARTS  LIST
............................... 66
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.
Connection box
Inputs
Video/audio
(Sony bus compatible, 1)
BUS control input connector (1)
Video/audio (2)
Outputs
Video/audio (1)
Connection to main unit
Dedicated 22-pin connector
Dimensions
Approx. 136 × 77 × 30 mm
(W × H × D)
Mass
Approx. 260 g
Design and specifications are subject to
change without notice.
Page of 77
Display

Click on the first or last page to see other XAV-77 service manuals if exist.