42
″
&47
″
LCD TV AOC L42H831&L47H831
21
4. Abnormal display
Check the source
OK
Reset source
NG
Check signal filter circuit
NG
Replace the filter or inductance
OK
NG
TV signal
Check TV system setup
OK
Check TU701
Replace TU701
AV/SV signal
Check the circuit from
connector to U401
NG Replace the failure
component
Check U401
NG
Replace U401
OK
Check panel
NG
Replace panel
PC signal
HDMI signal
Check U507
Replace U507
OK
NG
NG
Check the circuit from
connector to U401
Replace the failure
component
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 ...