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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-19
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9-2-2. DCS RX
Continuous RX ON
RF Input : 698 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
NO
U100 Check
Pin #6
≥
-65dBm ?
U100 Check
Pin #10,11
≥
-65dBm ?
U101 Check
Pin#8, 9
≥
-65dBm ?
Check soldered status of
C100, C101, L102, C102
RFS100, C100, L101
Resolder or Change
U100 Resolder or Change
U101 Check
Pin#1,13,22,32
≥
3.1V?
U101 Check
R117 : 13MHz
BTC500 PIN 3, C526
Check or resolder
END
YES
YES
YES
U101 Check
Pin 35,36,37,38:
Vp-p 100mV
YES
Check soldered status of
L108, L109
YES
YES
R117
Check or resolder
TCX100 CHECK
pin 4 : 2.9V
PIN 3 : 13MHz
V p-p : 800mV
NO
NO
NO
NO
NO
NO
TCX100
change
NO
GSM Receiver is ok?
YES
U101
Resolder or Change
NO
GSM RX path component
resolder or change
NO