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10-2-2. DCS RX
NORMAL CONDITION
catch the channel
U601 CHECK
pin#12 ≥ -65dBm
U601 CHECK
pin#18 ≥ -65dBm
U602 CHECK
pin#19,#20 ≥ -65dBm
U602
pin #12, #13 = 2.9V
OSC601 CHECK
pin #1 : 26MHz &
Vp-p : 900mV
pin#1,#2,#3,#28
Vp-p = 100mV
UCD102 CHECK!!
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NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
U602
NO
YES
CONTINUOUS RX ON
RF INPUT : 660CH
AMP : -50dBm
Check soldered status of
L611, C633, Ant.
RFS601, L604, L603, C604
resolder or change
3
U601
resolder or change
C607, C612, L608, F602
resolder or change
Check the VRF_2.9
of the UCD102
6
OSC601
change or resolder
7
U602
resolder or change
10-14
Flow Chart of Troubleshooting
1
2
4
5
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