Flow Chart of Troubleshooting
9-
21
9-2-3. PCS Receiver
CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
CHECK
C102 contact
NO
1
NORMAL CONDITION
catch the channel?
YES
F100 CHECK
pin13
≥
-65dBm?
RFS100
resolder or change
2
NO
YES
F100 CHECK
pin5,6
≥
-65dBm?
F100
resolder or change
NO
3
YES
U103 CHECK
pin16,17
≥
-
65dBm?
NO
C104, C106, L101
resolder or change
4
YES
U300 PIN A13, C314
resolder or change
U103 CHECK
pin9,32 : 2.8V
5
NO
6
YES
TCX100 CHECK
pin 4 : 2.8V
pin 3 : 13MHz
V p-p : 800mV
R114
resolder or change
U103 CHECK
R114
:13MHz
NO
NO
NO
YES
7
TCX100
change
U103
resolder or change
U103 CHECK
pin 1,2,3,4,5,6,7:
Vp-p 100mV
NO
END
PCS Receiver is ok?
PCS RX path component
resolder or change
NO
YES
8
Summary of Contents for SGH-X810
Page 54: ...PCB Diagrams 8 4 ...
Page 56: ...Flow Chart of Troubleshooting 9 2 ...
Page 67: ...Flow Chart of Troubleshooting 9 13 ...
Page 76: ...Flow Chart of Troubleshooting 9 22 ...
Page 80: ...Flow Chart of Troubleshooting 9 26 ...