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Flow Chart of Troubleshooting
10-2-3. PCS RX
NORMAL CONDITION
pin#12 ≥ -65dBm
pin#17,#18 ≥ -65dBm
pin #12, #13 = 2.9V
pin#1,#2,#3,#28 Vp-
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catch the channel
YES
U601 CHECK
YES
U601 CHECK
pin#20 ≥ -65dBm
YES
U602 CHECK
YES
U602
YES
OSC601 CHECK
pin #1 : 26MHz &
Vp-p : 900mV
YES
U602
p = 100mV
YES
UCD102 CHECK!!
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NO
Check soldered status of
L611, C633, Ant.
NO
RFS601, L604, L603, C604
resolder or change
NO
3
U601
resolder or change
NO
C616, C618, L609, F603
resolder or change
NO
Check the VRF_2.9
of the UCD102
NO
6
OSC601
change or resolder
NO
7
U602
resolder or change
10-15
CONTINUOUS RX ON
RF INPUT : 660CH
AMP : -50dBm
1
2
4
5
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