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CHECKING FLOW
Check TP1 of SW301
TP1 Signal is OK?
Check TP4 of U304 ?
Control Signal is
(VLogic, BS1,
BS2)OK ?
TP2(High Band),
TP3(Low Band)
Signal is OK ?
Mobile SW & TX Module is OK.
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
No
Yes
Yes
No
Yes
No
Yes
EGSM Rx
4. TROUBLE SHOOTING
Replace Mobile SW (SW301)
Check PMB8810
Replace FEM (U304)
68/136
68/140
68/140
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4. TROUBLE SHOOTING
LGE Internal Use Only
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