Pcs Receiver - Samsung SGH-J600 Service Manual

3-2-3. PCS Receiver

CONTINUOS RX ON
RF INPUT : 698CH
Cell power : -50dBm
NORMAL CONDITION
c atch the channel?
YES
U100 CHECK
pin12 ≥ -65dBm?
YES
U100 CHECK
pin20 ≥ -65dBm?
YES
UCD100 CHECK
pin17,18 ≥ -65dBm?
YES
the power source
of UCD100
YES
U100 CHECK
Pin30,31 :26MHz
YES
GSM Receiver is ok?
END
NO CHECK
L103,L105,C104
NO
CN100
resolder or change
NO U100
resolder or change
F102,C112
NO
C113,C114,L104
resolder or change
NO
check UCD300
NO
check OSC100 and
change
NO
GSM RX path component
resolder or change
3-25
Flow Chart of Troubleshooting
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