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Flow Chart of Troubleshooting
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9-33
9-14 GSM/DPCS Transmitter
TX ON (5 LEVEL:GSM
0 LEVEL: DPCS)
C104
≥
30dBm
No
END
C105
≥
0dBm(DPCS)
C108
≥
0dBm(GSM)
Check U200
No
Yes
C114 = Vbat
Check Battery & C114,119
No
R101
≥
1.5
No
Check PAM100 & R101
Yes
Yes
L191
≥
28dBm(DPCS)
L192
≥
30dBm(GSM)
No
Yes
C101 = 2.8V
No
Yes
Check PAM100
Check FEM100 POWER
(C416,C101.C107)
Resolder RFS100
Yes