4 Troubleshooting
4-2
X201 oscillate properly?
4-2 No Video (ANALOG)
1
Replace or check related circuit.
Check signal cable connection and
power.
Yes
No
Is there R, G, B input at
R104, R105 and R106?
Check input part.
Yes
No
Is there Hsync, Vsync waveform
at R112, R113?
Check input part.
No
Yes
Is there Hsync, Vsync waveform
at Pin 40, 41 of IC201?
Check IC201 and related circuit.
No
Yes
Dose proper DC 5V appear
at Pin 2 of IC501?
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.
2
2
3
3
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