Main Board Failure Check - Aiwa BBHTN180 Service Manual

Service Manual
Model No.:

9-2. Main board failure check

1) Black creen
Is power LCD normal?
6
5
J2
J2
11 Check Q5,Q6 and the
8
11
2) White screen
on VCC pins of J20
Check if Q1is working
Signal on J20
Check if J20 is
- 45 -