42
″
&47
″
LCD TV AOC L42H831&L47H831
20
3. No display (LED indicator Green )
Check 12V
power supply
Check Panel
NG
Replace Panel
Check back light is OK
OK
Check LVDS cable
and connector
OK
Check U403
NG
Replace U403
OK
Check U401
NG
Replace U401
NG
NG
OK
Check BL-ON/OFF signal
Check PS
signal
OK
OK
Check power
board
NG
NG
NG
Check Q705
、
Q704
Replace Q705
、
Q704
Summary of Contents for L42H831
Page 4: ...42 47 LCD TV AOC L42H831 L47H831 4 1 General Specification ...
Page 5: ...42 47 LCD TV AOC L42H831 L47H831 5 ...
Page 6: ...42 47 LCD TV AOC L42H831 L47H831 6 2 Operating Instructions 2 1 The Use of Remote Control ...
Page 24: ...42 47 LCD TV AOC L42H831 L47H831 24 6 PCB Layout 6 1 Main Board ...
Page 25: ...42 47 LCD TV AOC L42H831 L47H831 25 ...
Page 26: ...42 47 LCD TV AOC L42H831 L47H831 26 ...
Page 27: ...42 47 LCD TV AOC L42H831 L47H831 27 6 2 Power Board ...
Page 28: ...42 47 LCD TV AOC L42H831 L47H831 28 ...
Page 29: ...42 47 LCD TV AOC L42H831 L47H831 29 6 3 Key Board 6 4 IR Board ...
Page 46: ...42 47 LCD TV AOC L42H831 L47H831 46 9 3 Key Board ...
Page 47: ...42 47 LCD TV AOC L42H831 L47H831 47 10 Exploded View L42H831 ...