Operating instructions

42″ LCD TV AOC L42W665
24
2. Can not start (LED indicator yellow)
NG
Re
p
air the ke
y
board
OK
Check the standb
y
volta
g
e of main board
NG
R
ep
l
ace
U
903
，
U
906
，
U
90
7
，
U
908
，
U
909
，
U
9
11
OK
Check U401
NG
Re
p
lace U401
OK
Check U404
NG
Re
p
lace U404
NG
Replace Q906，Q907，Q913
OK
Check I
2
C communication
Check ke
y
board
OK
Check the POWER_ON SIGNAL
Check the com
p
onents of I
2
C communication
NG