
4. TROUBLE SHOOTING
- 55 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.3.2 Checking Front-End Module Block
Check TP3 of SW101
with RF Cable
TP2 Signal
same as TP3?
Replace SW101
No
Yes
End
Check TP1
=2.85V?
Check U200
No
Yes