Dcs Receiver - Samsung SGH-U100 Service Manual

Flow Chart of Troubleshooting

3-2-2. DCS Receiver

CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL CONDITION
c atch the channel ?
YES
F101 CHECK
pin6 ≥ -65dBm?
YES
F101 CHECK
pin10,11 ≥ -
65dBm?
YES
UCD101 CHECK
pin8,9 ≥ -65dBm?
YES
check the Power
source of
UCD101
YES
UCD101 CHECK
pin19,21 :13MHz
YES
DCS Receiver is ok?
END
NO CHECK
C101 contact
NO
RFS101
resolder or change
NO
F101
resolder or change
NO
C119,L109,L110
resolder or change
NO
check the battery contact
and voltage
NO
check OSC101
resolder or change
NO
DCS RX path component
resolder or change
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