4. TROUBLE SHOOTING
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CHECKING FLOW
Check TP2& TP3
Mobile SW & FEM is OK.
Yes
TP8 signal same
as TP1?
Replace SW301
No
Yes
Replace PMB8810 (U102)
TP2(High Band),
TP3(Low Band)
Signal is OK ?
No
Yes
Check PMB8810
Control Signal is
TP4, TP6, TP7
(VLogic,TX EN,
BS)OK ?
No
Yes
TP8 Signal is OK?
ReplaceFEM (U301)
No
EGSM Tx