27’ LCD TV AOC L27W431
21
5.3 No display (LED indicator green)
Check the source
OK
Reset source
NG
Check LVDS cable
NG
Reset LVDS cable
OK
Check 12V and 5V power supply
NG
Return to “5.1”
OK
Check main board power supply
OK
Check U402,U401
NG
Replace U402,U401
OK
Check I
2
C communication
OK
Check panel
NG
Replace panel
Check U302, U301
Replace U302, U301
Check U407
Replace U407
NG
NG
OK
Summary of Contents for L27W431
Page 5: ...27 LCD TV AOC L27W431 5 2 Operations Instructions 2 1 The Use of Remote Control ...
Page 29: ...27 LCD TV AOC L27W431 29 7 PCB Layout 7 1 Main Board ...
Page 30: ...27 LCD TV AOC L27W431 30 ...
Page 31: ...27 LCD TV AOC L27W431 31 ...
Page 32: ...27 LCD TV AOC L27W431 32 7 2 Power Board ...
Page 33: ...27 LCD TV AOC L27W431 33 ...
Page 34: ...27 LCD TV AOC L27W431 34 DC DC Board 7 3 Tuner Board ...
Page 35: ...27 LCD TV AOC L27W431 35 ...
Page 36: ...27 LCD TV AOC L27W431 36 8 Block Diagram ...