Polaroid TLM-23201B - Troubleshooting: No Sound

32″LCD TV Polaroid TLM-23201B
23
5. No sound
Check the source
OK
Reset source
Check si
g
nal filter circuit
NG
Replace the filter or inductance
OK
NG
SIF si
g
nal Check TV s
y
stem setu
p
OK
Check TU202
Replace TU202
Check U601, U602
NG
Re
p
lace U601 or U602
Check Earphone
j
ack
NG
Replace the Earphone
j
ack
OK
Check s
p
eaker
NG
Replace speaker
Check U401
Replace U401
HDMI si
g
nal
NG
Check U502
NG
Re
p
lace U502