Haier HL42XD1 Service Manual page 20

42 LCD TV
No Power (No LED Indicator)
Check power cord and board interface
OK
Check F901, BD901, C929
OK
Check IC901
OK
Check T901
OK
Check D910, C945, C946, C947
No Display (LED Indicator Green)
Check the source
Check LVDS cable
Check IC904 circuit
Check IC902
Check T902
Check D907, D904
Check U401
Check panel
NG
NG
Replace F901 or BD901 or C929
NG
Replace IC901
NG
Replace T901
NG
OK
NG
OK
NG
OK
NG
Replace IC902 or the correlative part
OK
NG
Replace T902
OK
OK
NG
OK
NG
Replace panel
Plug in power cord and interface
NG
Replace D910, C945, C946, C947
Reset source
Reset LVDS cable
Replace IC904 or the correlative part
NG
Replace D907, D904
Replace main board
21
Haier HL42XD1