AOC L22W831 Service Manual page 19

22"LCD TV
3. No display (LED indicator green)
Check back light is OK
OK
Check LVDS cable
and connector
OK
Check UH200
OK
Check U202
NG
Check 12V
power supply
OK
Check BL-ON/OFF signal
NG
Replace
UH200
NG
Replace U202
OK
NG
Check Panel
NG
Check PS
signal
NG
NG
Check Q705、Q706
Replace Panel
20
AOC L22W831
OK
Check power
board
NG
Replace Q705、Q706