21
5. Repair Flow Chart
No Picture (LED Orange)
Check I
2
C bus
Check I
2
C communication
NG
OK
Change key board/IR board
Check U400
Change U400
Check key board/IR board
No picture
OK
NG
OK
NG
Check 24V power supply
OK
Check the power supply circuit
NG
Check main board Standby power supply
Change U705
OK
NG
Содержание L42A9
Страница 4: ...4 1 General Specification ...
Страница 19: ...19 4 Remove the AC socket ass y speakers and BKT ...
Страница 20: ...20 5 Remove the rest BKT and separate panel and bezel ...
Страница 25: ...25 6 PCB Layout 6 1 Main Board 715G3639M01000004K ...
Страница 26: ...26 ...
Страница 27: ...27 6 2 Power Board 715G3351P01W20003S ...
Страница 28: ...28 ...
Страница 29: ...29 ...
Страница 30: ...30 6 3 Inverter Board 715G3358 1 ...
Страница 31: ...31 6 4 IO Board 715G3481 1 ...
Страница 32: ...32 6 5 Key Board 715G3513K01000001S 6 6 IR Board 715G3666R01000004F ...
Страница 58: ...58 11 Exploded View ...