XAV-7W - Sony Car Audio Service Manual (repair manual). Page 2

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2
XAV-7W
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  (5 
3
/
8
 
×
1
/
8
 
×
  1 
3
/
16
 in.) (W 
×
 H 
×
 D)
Mass
Approx. 260 g (9 oz)
Design and specifications are subject to
change without notice.
Loudness
+8 dB at 100 Hz
+2 dB at 10 kHz
Dimensions
With monitor closed
Approx. 178 
×
 50 
×
 185 mm (7 
1
/
8
 
×
×
  7 
3
/
8
 in.) (W 
×
 H 
×
 D)
Mass
Approx. 1.7 kg (3 lb 12 oz)
Supplied accessories
Card remote commander RM-X118
(1) (incl. 1 lithium battery)
Connection box (1)
Parts for installation and
connections (1 set)
Operating Instructions (1 set)
Outputs
Front audio (1)
Rear audio (1)
Subwoofer (mono)
Power antenna relay control lead (1)
Power amplifier control lead (1)
I/O connector
Dedicated 22-pin connector
Tone controls
Bass 
±
7.5 dB at 100 Hz
Treble 
±
7.5 dB at 10 kHz
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 (5/5)/SYNC Boards – .... 31
6-11. Printed Wiring Boards
– MAIN (Component Side)/SYNC Boards – ................. 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.
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