Haier LT19A1 Service Manual page 32

No Power (No LED Indicator)
Check power cord and board interface
OK
Check F901, BD901, C905
OK
Check IC901, Q901
OK
Check T901
OK
Check D904, C930, C915
No Display (LED Indicator Green)
Check the source
Check LVDS cable
Check IC901, Q901
Check IC801, D801, D802, D803, D804
Check Q805, Q806
NG
NG
NG
NG
Replace D904, C930, C915
NG
OK
NG
OK
OK
OK
OK
NG
Check PT801
OK
NG
Check U400
OK
NG
Check panel
NG
Plug in power cord and interface
Replace F901, BD901, C905
Replace IC901, Q901
Replace T901
Reset source
Reset LVDS cable
NG
Replace IC901 or Q901
NG
Replace IC801, D801, D802, D803, D804
NG
Replace Q805, Q806
Replace PT801
Replace main board
Replace panel
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