Main Board Failure Check - Haier L32F1120 Service Manual

9-2. Main board failure check

Service guide
1) Black creen
Is power LCD normal?
6
5
J15
J15
13 Check Q34 , Q35 and the
8
Y
1 1 1 1
Replace U1
2) White screen
on VCC pins of J9
Check if Q39 is working
Signal on J9
Check if J9 is
- 59 -