AOC L42W781HS User Manual

42‟‟ LCD TV AOC L42W781HS
27
5.4.No sound
Check the source
OK
Reset source
Check signal filter circuit
NG
Replace the filter or inductance
OK
Scart,AV,Component,PC
signal
Check Earphone jack
NG
Replace the Earphone jack
OK
Check speaker
NG
Replace U101
HDMI
NG
Analog TV signal
Check TV system setup
OK
Check TU1
Replace TU1
OK
NG
Replace U1
Check U1
Digital TV signal
Check TV system setup
NG
Check TU1
OK
NG
OK
Power supply U4
Check U101
Replace TU1
Replace TU4
Check U21
Check U6,U7
Check U12,U17
OK
OK
OK
Check U9,
OK
Check U501
Replace U501
U601
U603
Replace U601
Replace U603
Replace Speaker
NG
NG
OK
NG
OK
NG
NG

AOC L42W781HS Specifications

General

Brand	AOC
Model	L42W781HS
Category	LCD TV
Language	English