RCA L37WD23 Service Manual page 23

37'' LCD TV RCA L37WD23
3. Abnormal display
NG
Check the source
Reset source
OK
NG
Check signal filter circuit Replace the filter or inductance
TV signal Check TV system setup
OK
NG
Replace TU701
Check TU701
OK
OK
NG
Replace U701
Check U701
NG
NTSC, AV, Check U108 Replace U108
NG
Component, PC signal Replace U107
Check U107
NG
Replace U414, U415
Check U414, U415
HDMI signal
OK
NG
Replace U401
Check U401
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