3. TROUBLE SHOOTING
- 50 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Check TP1(C1619) at FL1600
Check if there is any major dierence referring
To Figure 3.1.1(b) Is any signal detected at that
point?
START
All WCDMA_B1 Rx check is complete.
If the phone sill do not work ,replace main board
Check L1620, C1619, C1604
Replace FL1600
Yes
Yes
Is any signal detected at that point?
No
No
3.1.2.4 Checking RF signal path (Duplexer)
Center Frequency :
881.4MHz
TP1
Figure 3.1.1(b)