Key Switch Buttons Errors - Sony XR-55A90J Service Manual
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Also See for XR-55A90J:
- Help manual (143 pages) ,
- Dismantling information for use (14 pages) ,
- Reference manual (221 pages)
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2021/02/04 23:38:48 (GMT+09:00)
5.0 Key Switch Buttons Errors
1. Switch module type
Side key buttons error
2. On board Switch type
SAFETY NOTES
Side key buttons error
SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
Check harness connection
between main board and switch
module
NG
Change switch module
NG
Change harness between main
board to switch module harness
NG
Main device or
dumping resister issue
Change main board
Change main board
NG
Key mechanical parts issue
Change switch mechanical block
TROUBLESHOOTING
SERVICE ADJUSTMENT
OK
Harness connection issue
OK
Switch module issue
OK
Main board to switch module harness
issue
OK
Main board issue
DIAGRAM
62
62
HANDLING GUIDE
SYS SET
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