Sharp LC55UB30U - No Video After Turn On Troubleshooting

CONFIDENTIAL – DO NOT COPY
Page 9-2
File No. SG-0000361
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Yes
Yes
Yes
Yes
W
ITHOUT VIDEO AFTER TURN ON
Start
Backlight is good?
1. Check R35 be Low ( BL-ON )
2. Check CE21 be 12V ( Panel Power )
FFC is Good?
1. Check CE21 be 12V ( Panel Power )
2. Check R199 be Low
Panel Power is good
1. Check R615/616 be low
( VB1 link indicator)
Is VB1 correct ?
1. Check J5 ( Panel CNT )
2. Change newer FFC
END