5.3.4. Display Troubleshooting (white screen )
White screen
Check if VCC_Panel voltage is ok ?(the
Pin1~3 of CN12?
N
Check the S pole of
QM2 is 5V or 12V
Y
Check if the LVDS cable is
right and if well connected
with the board
Y
Check if G pole
voltage of QM2 is low
N
Check if U1 jumper contact
well
N
Change the
LVDS cable
Y
Check if the
panel is ok
N
Check if B pole of QM1 is
high (0.6V) or front end of
Y
Change QM2
N
Change CN10 or
jumper
Y
Check power
supply
Y
Change U1
N
Change panel
RM1 is 3.3V
N
Change U1
Y
Change QM1or
RM1
Summary of Contents for LHD32D33EU
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