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SAM SUNG Proprietary-C ontents may change without notice
SGH-I700 Flow Chart of Troubleshooting
2-19
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F1001 CHECK
pin6 -65dBm ?
F1002 CHECK
pin 3,4 -65dBm ?
14. PCS Receiver
CONTINUOUS RX ON
RF INPUT : 660CH
AMP : -50dBm
F1001 CHECK
pin15 -65dBm ?
CN703
resolder or change
U1002
pin 12,13≥
-20dBm ?
U1002 CHECK
pin17,18 -65dBm ?
U1003 CHECK
pin5,25,28 : 3V ?
F1001
resolder or change
F1002
resolder or change
C1021 ,C1022 ,L1005
resolder or change
U701 pin33 , C724
check or resolder
U1003 CHECK
pin 7 : 13MHz ?
Vp-p : 860mV?
OSC901
CHECK
pin 4 : clean
3V ?
U604 change or
resolder
U1002 CHECK
pin 14,23,26,32:
clean 2.8V?
C921 , R907
change or resolder
OSC901 change or
resolder
U701 pin39, C725
check or resolder
U1002 pin3,4
Vp-p : 240mV?
U1001 CHECK
pin6, 20 : 2.8V ?
U1001
resolder or change
U1002pin1,2Vp-p
: 250mV ?
U1002
resolder or change
U1001pin 2,3,4,5
Vp-p : 100mV ?
CHECK
U901
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
OSC901 CHECK
pin 3 : 13MHz ?
Vp-p : 950mV?
U701 pin33, C724
check or resolder
NO
NORMAL CONDITION
catch the channel?
Check soldered status of
L1006, L1002
NO
YES