- 66 -
LGE Internal Use Only
Copyright © 01 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4. TROUBLE SHOOTING
Check TP1 of SW101
TP1 Signal is OK?
Replace Mobile SW (SW101)
No
Yes
Yes
Check PMB8815(U201)
Control Signal is
(GpCtrl1 GpCtrl0
No
Check TP4 of U101 ?
Check PMB8815(U201)
(GpCtrl1,GpCtrl0,
Tx Enable)OK ?
Yes
Replace TX Module (U101)
TP2(High Band),
TP3(Low Band)
Signal is OK ?
No
Yes
Mobile SW & TX Module is OK.
Yes
EGSM Rx
EGSM Rx
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
^WVX[^
Check TP1 of SW101
TP1 Signal is OK?
Replace Mobile SW (SW101)
No
Yes
Mobile SW & TX Module is OK.
Control Signal is (RF_ANT_SEL[0],
RF_ANT_SEL[1],RF_TX_EN)OK ?
Check PMB8815(U01)
No
Yes
TP(High Band),
TP3(Low Band)
Signal is OK ?
Replace TX Module (U101)
No
Yes
Check TP4 of U101 ?
Yes