4 Troubleshooting
4-4
X201 oscillate properly?
4-3 No Video (DIGITAL)
1
Replace or check related circuit.
Check signal cable connection and
power.
Yes
No
Is there input data at
R133, R134, R135, R136,
R137 and R138?
Check input part.
Yes
No
Is there waveform
at R139, R140?
Check input part.
No
Yes
Is there R, G, B input at R134,
R135, R136, R137 and R138?
Check Panel Cable.
No
Yes
Does the output signal
appear at Pin 3, 4, 6, 7, 9, 10,
12, 13, 15~20 and 22~27
of CN602?
Check IC201, IC601 and
related circuit.
No
Yes
Replace LCD Panel.
7
6
5
4
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