20” LCD TV Color Monitor
AOC L20S421
19
6. Repair Flow Chart
1. No Power (No LED indicator)
Check power cord
and board interface
NG
Plug in power cord and interface
Check F901, BD901
Replace F901 or BD901
Check the circuit
Check IC901 Q901
Replace IC901 or Q901
Check T901
Replace T901
Check D904, D905
Replace D904, D905
Replace Q903, ZD902,
IC903 IC902
Check Q903, ZD902, IC903 IC902
and relative circuit
Check Q906, IC905 and relative circuit
No Power
OK
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
Содержание Envision L20S421
Страница 27: ...20 LCD TV Color Monitor AOC L20S421 27 6 Remove the 15 screws to remove the bezel ...
Страница 28: ...20 LCD TV Color Monitor AOC L20S421 28 7 Remove the ten screws to remove the main frame ...
Страница 29: ...20 LCD TV Color Monitor AOC L20S421 29 8 Exploded View ...
Страница 58: ...20 LCD TV Color Monitor AOC L20S421 58 10 PCB Layout 10 1 Main Board 715T1802 1 ...
Страница 59: ...20 LCD TV Color Monitor AOC L20S421 59 ...
Страница 60: ...20 LCD TV Color Monitor AOC L20S421 60 10 2 Power Board 715T1811 2 ...
Страница 61: ...20 LCD TV Color Monitor AOC L20S421 61 ...
Страница 62: ...20 LCD TV Color Monitor AOC L20S421 62 ...
Страница 63: ...20 LCD TV Color Monitor AOC L20S421 63 10 3 Tuner Board 715T1747 1 ...
Страница 64: ...20 LCD TV Color Monitor AOC L20S421 64 ...
Страница 65: ...20 LCD TV Color Monitor AOC L20S421 65 ...
Страница 66: ...20 LCD TV Color Monitor AOC L20S421 66 10 4 IR Board 715T1817 1 ...
Страница 67: ...20 LCD TV Color Monitor AOC L20S421 67 10 5 Headphone Board 715T1381 2 10 6 Key Board 715T1822 1C ...