AOC L37W551B Service Manual page 26

37" LCD TV
4. No sound
Check the source
OK
Check signal filter circuit
Check Earphone jack
OK
Check Audio decoder MSP3410G U4
OK
Check U63
OK
Check Amplifier MAX9704 U60
OK
Check speaker
Reset source
NG
Replace the filter or inductance
NG
Replace the Earphone jack
SIF signal
AV, AIR1/AIR2, PC signal
NG
Replace U4
NG
Replace U63
NG
Replace U60
NG
Replace speaker
26
Check TV system setup
OK
NG
Check Tuner
AOC L37W551B
Replace Tuner