AOC L42W781HS User Manual

42‟‟ LCD TV AOC L42W781HS
25
5. Repair Flow Chart
5.1. No Power (No LED indicator)
5.2. Can not start (LED indicator yellow)
NG
Repair the key board
OK
Check 5V_SB
NG
Return to “1”
OK
Check PWR_ON signal
NG
Check Q706, Q703
NG
Replace Q706, Q703
OK
Check U203, U401
NG
Replace U401 or U203
OK
OK
Check main board power supply part
Check key board
Check I
2
C communication
NG
Check power cord and board interface
Plug in power cord and interface
OK
Check F901, BD901, C907
NG
Replace F901 or BD901 or C907
OK
Check IC901, Q901
Check D905, D914
NG
Replace IC901 or Q901
OK
Check T901
OK
Replace T901
Replace D905 or D914
OK
NG
NG
Check ZD901
NG
Replace ZD901

AOC L42W781HS Specifications

General

Brand	AOC
Model	L42W781HS
Category	LCD TV
Language	English