20” LCD TV Color Monitor AOC L20W431
23
6. Repair Flow Chart
1. No Display (LED indicator green)
Check the source
Reset source
Check LVDS cable
NG
Replace LVDS cable
Check 12V power supply
Return to “
3
”
Check U406
Replace U406
Check panel
Replace panel
Check main board power supply
Check I
2
C communication
Repair I
2
C communication relative circuit
No display
OK
NG
OK
NG
OK
OK
NG
OK
NG
OK
NG
Summary of Contents for L20W431
Page 20: ...20 LCD TV Color Monitor AOC L20W431 20 6 Remove the 15 screws to remove the bezel ...
Page 21: ...20 LCD TV Color Monitor AOC L20W431 21 7 Remove the ten screws to remove the main frame ...
Page 22: ...20 LCD TV Color Monitor AOC L20W431 22 ...
Page 29: ...20 LCD TV Color Monitor AOC L20W431 29 7 PCB Layout 7 1 Main Board ...
Page 30: ...20 LCD TV Color Monitor AOC L20W431 30 ...
Page 31: ...20 LCD TV Color Monitor AOC L20W431 31 7 2 Power Board ...
Page 32: ...20 LCD TV Color Monitor AOC L20W431 32 ...
Page 33: ...20 LCD TV Color Monitor AOC L20W431 33 7 3 Tuner Board ...
Page 34: ...20 LCD TV Color Monitor AOC L20W431 34 ...
Page 35: ...20 LCD TV Color Monitor AOC L20W431 35 ...
Page 36: ...20 LCD TV Color Monitor AOC L20W431 36 7 4 IR Board ...
Page 37: ...20 LCD TV Color Monitor AOC L20W431 37 7 5 Earphone Board 7 6 Key Board 715T1822 2 ...
Page 57: ...20 LCD TV Color Monitor AOC L20W431 57 10 Exploded View ...