Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-58
F100
PIN11 : About
27dBm ?
8-3-18. DCS/PCS TX
Check the Voltage at
C102 = 2.85V ?
Check the Voltage at
R106,C135=VOUT_CHARGER?
CHECK soldered
-
RFS101,C112,L107,L103,C108,
-
C190,L134,C104,ANT102,C110,
L105
Resolder or change
F100, C102
Resolder or change
PAM100, R106, C135
Check L133, C137 :
About 27dBm ?
Resolder or change
L133, ,C137
YES
NO
NO
YES
YES
NO
NO
YES
Check C124, L111 :
About -4dBm ?
Resolder or change
C124, L111
YES
YES
Check the voltage at
{C147 = VOUT_CHARGER ?}
& {C157, C159
= VOUT_CHARGER?}
& {C146 = 2.85V ?}
& {C141= 2.65V ?}
& {C168 = 1.8V?}
& {C144= 1.2V?}
Resolder or change
U104
Check the freq. at
OSC100 pin3: 26MHz ?
Change or resolder
OSC100
DCS/PCS Transmitter is O.K?
Resolder or change
UCP300
END
NO
YES
NO
YES
NO
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
DCS CH : 685
PCS CH : 661
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB