Samsung SGH-U600 Service Manual page 37

Flow Chart of Troubleshooting
3-2-4. PCS Receiver
CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL CONDITION
c atch the channel?
YES
F101 CHECK
pin6 ≥ -65dBm?
YES
F101 CHECK
pin12,13 ≥ -
65dBm?
YES
U100 CHECK
pin8,9 ≥ -65dBm?
YES
the power source
of U100
YES
U100 CHECK
Pin15,17 :13MHz
YES
GSM Receiver is ok?
END
NO CHECK
C100
NO
RFS100
resolder or change
NO F101
resolder or change
NO
L109, L110
resolder or change
NO
check battery contact
NO
check OSC100 and
change
NO
GSM RX path component
resolder or change
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