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SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-31
This Document can not be used without Samsung's authorization
8-
3
-
19
. DCS/PCS TX
F100 pin3:
about 30
dBm?
CN100,C118,
L102
check &
change
C120 :
2.85V?
U302
check & change
L100
about : 30 dBm
NO
NO
YES
YES
YES
F100
change or resolder
C105 = 3.8~4.2V ?
NO
C110 : about -5dBm
?
YES
C107 : about -5dBm
NO
Check
DC bias
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
NO
YES
U100
change or resolder
NO
YES
C107,C198,C108,
C109,C110
change or resolder
NO
U302
resolder or change
Check the freq. at
C300 :19.2MHz ?
U300
change or resolder
NO
Soldering state of U302 is O.K?
NO
U302
resolder or change
END
U302
{C314 = 2.2V ?}
& {C316 = 1.3V ?}
& {C360 = 2.3V ?}
& {C321 = 1.4V ?}
YES
YES
YES
Содержание Wave GT-S8500
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