19’’ LCD TV AOC L19W765
19
5. Repair Flow Chart
1. No Power (No LED indicator)
2. Can not start (LED indicator yellow)
NG
Repair the key board
OK
Check 12V SB
NG
Return to “1”
OK
Check PWR ON signal
NG
Check U905, Q906, Q907
NG
Replace U905 or Q906 or Q907
Check I
2
C communication
OK
Check RELAY-SW signal
NG
Replace Q910, Q912
Check U401
NG
Replace U401
OK
OK
Check main board power supply part
Check key board
OK
Check I
2
C communication
NG
Check power cord and board interface
Plug in power cord and interface
OK
Check F901, BD901, C913
NG
Replace F901 or BD901 or C913
OK
Check the start voltage of IC901
Check the output of IC901 pin5
NG
Check R931, R904, R938, IC901
OK
Check the voltage of IC901 PIN6
OK
Check T901, D902, D903, C906,ZD905
Check D901, Q903
OK
NG
NG
Check ZD903, IC902, IC903
NG
Replace ZD903 or IC902 or IC903
Summary of Contents for L19W765
Page 12: ...19 LCD TV AOC L19W765 12 2 3 How to Connect ...
Page 13: ...19 LCD TV AOC L19W765 13 2 4 Front Panel Control Knobs ...
Page 17: ...19 LCD TV AOC L19W765 17 3 Remove the shield 4 Remove the main board power board ...
Page 24: ...19 LCD TV AOC L19W765 24 6 PCB Layout 6 1 Main Board ...
Page 25: ...19 LCD TV AOC L19W765 25 ...
Page 26: ...19 LCD TV AOC L19W765 26 ...
Page 27: ...19 LCD TV AOC L19W765 27 6 2 Power Board ...
Page 28: ...19 LCD TV AOC L19W765 28 ...
Page 29: ...19 LCD TV AOC L19W765 29 ...
Page 30: ...19 LCD TV AOC L19W765 30 6 3 Key Board 6 4 IR Board ...
Page 47: ...19 LCD TV AOC L19W765 47 9 2 Power Board ...
Page 48: ...19 LCD TV AOC L19W765 48 ...