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SAMSUNG Proprietary-Contents may change without notice
SGH-V100 Flow Chart of Troubleshooting
3-
17
F950 CHECK
pin15 ≥ -65dBm ?
2.RF
1. PCS Receiver
CONTIN UOUS R X ON
RF INPU T : 660CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
CHECK
C1020,L1002,C1001 contact
?
U901
pin 12,13≥
-20dBm ?
F950 CHECK
pin6 ≥ -65dBm ?
F951 CHECK
pin4,6 ≥ -65dBm ?
U901 CHECK
pin17,18 ≥ -65dBm ?
U902 CHECK
pin 25,28 :
3V ?
CON1
resolder or change
U1005
resolder or change
R950,C967, F951
resolder or change
C968, C970, L953
resolder or change
U100 , PI N39 , C116
check or resolder
U902 CHECK
pin 7 : 13MHz
?
Vp-p : 860mV?
OSC801 CHECK
pin 4 : clean
3V ?
U902 change or
resolder
U901 CHECK
pin 14,23,26,32:
clean 2.8V?
C808
resolder
OSC801 change or
resolder
U100, PIN46, 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
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
OSC801
CHECK
pin 3 : 13MHz?
Vp-p : 950mV?