SAM SU N G Proprietary-C ontents m ay change w ithout notice
SGH-I700 Flow Chart of Troubleshooting
2-
20
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13. DPCS Transmitter
F1001 pin 10
: about 2~3
dBm?
CN703, C1038,
L1001
check&change
F1001
pin11 : 2.8 V?
U903, U904
check & change
Between
F1001&C1043:
≒ 4~5dBm?
F1001
check & change
C1024 : 3.7
V?
NO
NO
YES
YES
YES
NO
NO
BATTERY, U701
check & change
Between
R1008 & U1004 :
1.2V?
YES
NO
R1008
check & change
R1031:
≒ -5dBm ?
YES
C1033 : 3V?
YES
YES
U1004
change
NO
U901
check
U901
check & change
YES
NO
U1003
pin14,23,26,32 :
2.8V ?
U701 pin39,C711
change or resolder
YES
U1002
pin9,10,12,13
:-20dBm ?
U1002
pin5,6,7,8 :1.7V
?
YES
U901
change
NO
NO
U1004
change or
resolder
YES
U1003pin5,2
5,28 : 3V ?
NO
U701 pin33,C724
change or resolder
NO
U1003
pin 7 : 13MHz?
Vp-p: 950mV
YES
U1003
pin9,10,11,1
2,13: 3V?
YES
YES
U1003
change or
resolder
OSC901
pin 3 : 13MHz?
Vp-p : 950mV
OSC901
change or
resolder
U901
check or change
OSC901
pin 4 : 3V ?
U701
pin33,C725
change or
resolder
U1003
change or
resolder
NO
NO
YES
NO
YES
NO
CONTINUS TX ON CONDITION
CH:698CH(DCS), 660CH(PCS)
TX POWER CODE:350 CODE
APPLIED
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
NO