Level 3 Repair
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Check C102 : About
30dBm ?
8-3-35. GSM1800/GSM1900 TX
CONTINUOUS TX ON CONDITION
TX POWER IDX1 APPLIED
DCS CH : 698
PCS CH : 661
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
Check L100 : About
30dBm ?
Check C165 : About
0dBm ?
CHECK soldered
- C102,L147,CPL100
Resolder or change
F100,U102
Resolder or change
C165, U2010
Check C101 : About
30dBm ?
Resolder or change
C101, PAM101
NO
YES
NO
YES
NO
YES
NO
Check the freq. at
OSC3000 PIN 3 :
19.2MHz ?
Change or resolder
OSC3000
GSM850/900 Transmitte
is O.K?
Resolder or change
U3002
END
NO
YES
NO