Haier MT5311, Manual

Page: 80 / 92

3. 3. Display Trouble (Exceptional screen)
Exceptional screen
Check if the cable is correct
and connected tightly.
Y N
Check if the voltage on pin
No. 1,2,3 of CN18 is OK
Y N
If the software
Check the voltage for
CN3 is panel VCC
Y
N
Change the cable
for Panel connector
If the software
on board is OK
Check the
circuit of
Q70(3407)
Ch V lt f CN3
1 <
Change Voltage for CN3
Change
software
Change LCD
(Screen)
Change Q70
N
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