Haier LT19Z6 Service Manual page 36

Abnormal Display
Check the source
Check signal filter circuit
Check LVDS cable
No Sound
NG
Check the source
Check if mute
Check input signal
Check speaker
OK
OK
NG
Check input
OK
OK
NG
Check panel
NG
OK
OK
NG
OK
OK
Check U401
NG
OK
NG
Check U601
OK
NG
NG
Reset source
Replace the filter or resistance
OK
RF signal
NG
Replace LVDS cable
Replace panel
Reset source
NG
TV SIF
OK
NG
Check U601
Change U401
Change U601
Change speaker
36
Check TV system setup
OK
Check Tuner
OK
Replace Tuner
NG
Check TV
system
Change U601
Reset TV system