4. TROUBLE SHOOTING
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LGE Internal Use Only
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CHECKING FLOW
Check TP1 of SW101
TP1 Signal is OK?
Replace Mobile SW (SW101)
Yes
No
Yes
Mobile SW & TX Module is OK.
Check PMB8815(U201)
Control Signal is
(GpCtrl1,GpCtrl0,Tx
Enable)OK ?
No
Yes
Check TP4 of U101 ?
Replace TX Module (U101)
TP2(High Band),
TP3(Low Band)
Signal is OK ?
No
Yes
EGSM Rx