Samsung GT-P7320 Service Manual page 98

Level 3 Repair
8-3-21. GSM1800/1900 TX
Check C110 :
about 30dBm ?
Check the Voltage at
C118 VREG_FEMID_2.85V
Check L206 :
about 30dBm
Check the Voltage at
C222,C239 Vout_Charger
Check the Voltage at
C231=VPAM
Check C288 : about 0dBm
Check the voltage at
{C218, C219 = 1.8V}
& {C210 = 1.2V}
& {TA200 = 1.3V}
& {C216,C217,C205 = 2.2V}
Check the freq. at C284,
R202: 19.2MHz ?
GSM1800/GSM1900 Transmitter is O.
K?
END
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CHECK soldered
C110,L107,F102
Resolder or change
C118
Resolder or change
L206,C299,PAM200
Resolder or change
C222,C239,C221,C240
Resolder or change
C231,C143,C144
Resolder or change
L210,L287,L209,C288
Resolder or change
L201,C829,L800,
Change or resolder
C284, R202
Resolder or change
U202
8-62
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
DCS CH : 698
PCS CH : 661
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB