White screen
Error signal output
(for u5)
Check circuit between
pin3 of u25
and Q24,or broken
I/O of u25
Check Q
2
4
See pow
er
supply troble
Broken pannel
or LVDS
Check u5 and
clo
ck circuit
Check Q4 (for 0-3.3v or 5-12v
follow supply of panel)
N
Y
Check supply (for pannel)
Check Q
2
4
Broken Q24,or follow
load is shorted
Check CN8 or CN9
N
N
N
N
Y
Y
Y
Y
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