Appendix-1 Trouble Analysis Flow - Sony DL-55W657D Service Manual

APPENDIX-1 Trouble analysis flow

NG
NG
Power On Key
Function check
Check IR Cable OK
Connection
NG
Reinstall
IR Cable
NG Exchange
Check TV Function
IR board
OK
OK
Check TV Function
Exchange
Main board
OK
Check TV Function
Finish Repair
KDL-55W657D
No Does Backlight
OK
LED Indicator
Function check
OK
OK
Power Cable
connection Check
Reinstall
Power Cable
NG
Exchange
Check TV Function
PSU board
NG
Finish Repair
Return Set
Yes
turn On?
V-Line/H-Line
Abnormal?
Yes
NG
OK
Exchange
Panel
OK
Check TV Function
Yes
No
Does Picture
appear?
No
OK
Panel Cable(FFC)
Connection Check
NG
Check TV Function
Exchange
Main board
OK
Check TV Function
NG
Exchange
Panel
OK
Check TV Function
Yes or OK
No or NG
NG
Reinstall
Panel Cable
OK
Finish Repair
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