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4. TROUBLE SHOOTING
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
^WVXZZ
CHECKING FLOW
4. TROUBLE SHOOTING
Check TP2& TP3
Mobile SW & FEM is OK.
Yes
TP5 signal same
as TP1?
Replace SW301
No
Yes
Replace PMB8810 (U101)
TP2(High Band),
TP3(Low Band)
Signal is OK ?
No
Yes
Check PMB8810
Control Signal is
(VLogic,TX EN,
BS1, BS2)OK ?
No
Yes
Yes
Check TP4 of U301 ?
TP1 Signal is OK?
Replace FEM (U301)
No
EGSM Tx