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SAMSUNG Proprietary-Contents may change without notice
3-
20
SGH-V100 Flow Chart of Troubleshooting
F950 CHECK
pin15 ≥ -65dBm ?
2. DCS Receiver
CON TINUOUS RX ON
R F IN PUT : 698CH
AMP : -50dBm
NORMAL CONDI TION
catch the channel?
CHECK
L952,L954 contact ?
U901
pin 12,13≥
-20dBm ?
F950 CHECK
pin3, 4 ≥ -65dBm ?
U901 CHECK
pin19,20 ≥ -65dBm ?
U902 CHECK
pin 25,28 :
3V ?
CN950
resolder or change
F950
resolder or change
C963,C966,L951
resolder or change
U100pin39 , C116
check or resolder
U902 CHECK
pin 7 : 13MHz
?
Vp-p :
860mV?
U703 CHECK
pin 4 : clean
3V ?
U902 change or
resolder
U901 CHECK
pin 14,23,26,32:
clean 2.8V?
C725
resolder
U703 change or
resolder
U100pin46, C114
check or resolder
U901 pin3,4
Vp-p : 240mV?
U900 CHECK
pin6, 20 : 2.8V
?
U900
resolder or change
U901 pin1, 2
Vp-p : 250mV ?
U901
resolder or change
U900 pin
2,3,4,5 Vp-p :
100mV ?
CHECK
U700
NO
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YE
S
U703 CHECK
pin 3 :
13MHz ?
Vp-p :
950mV?