Flow Chart of Troubleshooting
10-27
10-2-3. PCS Receiver
CONTINUOS RX ON
RF INPUT : 650CH
Cell power : -50dBm
NORMAL CONDITION
catch the channel?
CHECK
C129, L107, L108
NO
1
YES
U100 CHECK
pin12
≥
-65dBm?
RFS100
resolder or change
2
NO
YES
U100 CHECK
pin21
≥
-65dBm?
U100
resolder or change
NO
3
U101 CHECK
pin20,21
≥
-65dBm?
YES
F102,C128
C129, L107, L108
resolder or change
NO
4
YES
check UCP300
NO
the power source
of U101
5
6
YES
check OSC100
and
change
U101 CHECK
Pin34,35
:26MHz
NO
YES
END
GSM Receiver is ok?
GSM RX path component
resolder or change
NO
Summary of Contents for Giorgio Armani SGH-P520
Page 39: ...Flow Chart of Troubleshooting 10 4 ...
Page 42: ...Flow Chart of Troubleshooting 10 7 ...
Page 47: ...Flow Chart of Troubleshooting 10 12 ...
Page 52: ...Flow Chart of Troubleshooting 10 17 ...
Page 59: ...Flow Chart of Troubleshooting 10 24 ...
Page 68: ...Flow Chart of Troubleshooting 10 33 ...