4 Troubleshooting
4-6
4-4 No Picture (Video Signal)
Does a signal appear at
Pin 38 of IC402?
Check CN103 and related circuit.
No
Check IC402 and related circuit.
No
Check IC201 and related circuit.
No
Check CN602 and related circuit.
No
Yes
Does a signal appear at
Pin 234~237 and 241~244
of IC201?
Yes
Does a signal appear at
Pin 3, 4, 6, 7, 9, 10, 12, 13, 15~20
and 22~27 of CN602?
Yes
Replace Main board
Yes
Does a signal appear at
Pin 3 of CN103?
1
1
2
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