Table of Contents
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4 Troubleshooting
4-3 No Video (DIGITAL)
Check signal cable connection and
power.
1
X1 oscillate properly?
Yes
Is there R, G, B input at
5
4
R100,R101,R102,R106
and R108?
Yes
Does the output signal appear
at Pin 17~20, 22~27 of
CN400?
Yes
There are DC 5V at Pin 1,
2 and 3 of CN400?
Yes
Replace LCD Panel.
4-4
No
No
6
No
No
Replace or check related circuit.
Check input part.
Check IC400 and related circuit.
Check the PANEL_EN signal at R222
and BL_EN signal at R603.
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Table of Contents
Troubleshooting
