Level 3 Repair
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8-60
F100
PIN11 About :
About 22 dBm ?
8-3-19. WCDMA BAND1 TX
Check the Voltage at
C102 = 2.85V ?
Resolder or change
F100, C102
Check L106, C109 :
About 22dBm ?
Resolder or change
L106,C109
YES
NO
NO
YES
YES
CHECK soldered
-
RFS101,C112,L107,L103,C108,
-
C190,L134,C104,ANT102,C110,
L105
NO
Check component
soldering status OK at
F101
Resolder or change
F101
NO
YES
Check C140 :
About 22dBm ?
Resolder or change
C140
YES
NO
Check the Voltage at
R106,C135=VOUT_CHARGER?
Resolder or change
PAM100, R106,c135
NO
YES
Check L118
About 0dBm ?
Resolder or change
L118
YES
YES
Check the voltage at
{C147 = VOUT_CHARGER ?}
& {C157, C159
= VOUT_CHARGER?}
& {C146 = 2.85V ?}
Resolder or change
U104
Check the freq. at
OSC100 pin3: 26MHz ?
Change or resolder
OSC100
NO
YES
NO
YES
WCDMA band1 Transmitter is O.K?
Resolder or change
UCP300
END
NO
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
WCDMA Band1 CH : 10700
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB