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Flow Chart of Troubleshooting and Circuit Diagrams
9-2-3. PCS Receiver
CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL CONDITION
catch the channel ?
F101 CHECK
pin13 ≥ -65dBm?
F101 CHECK
pin5,6 ≥ -65dBm?
UCD100 CHECK
pin10,11 ≥ -65dBm?
UCD100 CHECK
pin34 : 2.8V
UCD100 CHECK
Pin19,21:13MHz
PCS Receiver is ok?
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
END
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1
CHECK
C101, C140, contact
2
RFS100
resolder or change
3
F101
resolder or change
4
L105,L106,C139
resolder or change
5
UCP300 PIN A13, C313
resolder or change
TCX100 CHECK
TCX100
change
PCS RX path component
resolder or change
9-23
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