AOC L19W831 - For TV Set-Top Boxes with DVI; Using Component Video

19″LCD TV AOC L19W831
19
5. Repair Flow Chart
1. No Power (No LED indicator)
2. Can not start (LED indicator yellow)
NG
Re
p
air ke
y
board or remote control
OK
Check U701
,
U702
,
U703
NG
Re
p
lace U701
,
U702
,
U703
Check U400
NG
Re
p
lace U400
OK
OK
Check ke
y
board or remote control
Check I
2
C communication
Can not start
OK
NG
Check power cord and board interface
Plug in power cord and interface
OK
Check F901, BD901, C905
NG
Replace F901 or BD901 or C905
OK
Check IC901, Q901
Check D904, D906
NG
Replace IC901 or Q901
OK
Check T901
OK
Replace T901
Replace D904 or D906
OK
NG
NG
Check ZD920
NG
Replace ZD920