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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-31
9-13. GSM/DPCS Receiver
Yes
CONTINUOUS RX on
RF input : EACH BAND CENTER
CH
Cell power : -50dBm
RX ON
Cell Power : -50 dBm
Yes
No
Resolder RFS100
C104
≥
-65dBm
C101 = 2.8V
Yes
Check FEM100 POWER
(C416,C101.C107)
No
Yes
Check R102,3,4,5
Well?
No
ResolderR102,3,4,5
or Change R102,3,4,5
Yes
No
Check U200
Change FEM100
Check FEM100 ok?
END