23
No Power (No LED Indicator)
No Display (LED Indicator Green)
NG
Check power cord and board interface
Plug in power cord and interface
OK
Check F901, BD901, C929
NG
Replace F901 or BD901 or C929
OK
Check IC901
Check D910, C945, C946, C947
NG
Replace IC901
OK
Check T901
OK
Replace T901
Replace D910 or C945 or C946 or C947
NG
NG
NG
Check the source
OK
Reset source
Check LVDS cable
NG
Reset LVDS cable
OK
Check IC904 circuit
NG
Replace IC904 or the correlative part
OK
OK
Check U400
NG
Replace main board
OK
Check panel
NG
Replace panel
Check IC902
NG
Replace IC902 or the correlative part
OK
Check T902
NG
Replace T902
OK
Check D907, D904
NG
Replace D907, D904
Summary of Contents for L42A9
Page 4: ...4 1 General Specification ...
Page 19: ...19 4 Remove the AC socket ass y speakers and BKT ...
Page 20: ...20 5 Remove the rest BKT and separate panel and bezel ...
Page 25: ...25 6 PCB Layout 6 1 Main Board 715G3639M01000004K ...
Page 26: ...26 ...
Page 27: ...27 6 2 Power Board 715G3351P01W20003S ...
Page 28: ...28 ...
Page 29: ...29 ...
Page 30: ...30 6 3 Inverter Board 715G3358 1 ...
Page 31: ...31 6 4 IO Board 715G3481 1 ...
Page 32: ...32 6 5 Key Board 715G3513K01000001S 6 6 IR Board 715G3666R01000004F ...
Page 58: ...58 11 Exploded View ...