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5. No Video
Has display image
only white?
No
Yes
Next page.
No
Yes
Connection trouble.
Check the output of scalier
(pin 71, 72, 73, 74, 75)
and soldering of CN5.
No
Yes
Is pin 1
of Q6 3.3V?
Check Q6, its ambient
circuit and pin 27 of -com.
Check if
the CN5 wafer is
well connected at
the LCD panel.