Flow Chart of Troubleshooting
10-22
10-2-2. DCS Receiver
CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL CONDITION
catch the channel?
CHECK
L105,L108,C105
NO
1
YES
PAM100 CHECK
pin12
≥
-65dBm?
RFS100
resolder or change
2
NO
YES
PAM100 CHECK
pin19
≥
-65dBm?
PAM100
resolder or change
NO
3
U100 CHECK
pin22,23
≥
-65dBm?
YES
F101,C110,
C109,C112,L103
resolder or change
NO
4
YES
check UCP300
NO
the power source
of U100
5
6
YES
check OSC100
and
change
U100 CHECK
Pin34,35
:26MHz
NO
YES
END
GSM Receiver is ok?
GSM RX path component
resolder or change
NO
Содержание SGH-E950
Страница 48: ...Flow Chart of Troubleshooting 10 2 ...
Страница 60: ...Flow Chart of Troubleshooting 10 14 ...
Страница 63: ...Flow Chart of Troubleshooting 10 17 ...
Страница 66: ...Flow Chart of Troubleshooting 10 20 ...
Страница 70: ...Flow Chart of Troubleshooting 10 24 ...