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Flow Chart of Troubleshooting
9-2-3. PCS Rx
CONTINOUS RX ON
RF INPUT : 660CH
AMP : -50dbm
Normal condition
catch the channel ?
Yes
Check U101
pi n 12 ≥ -65
dbm ?
Yes
Check U101
pin 20 ≥ -65 dbm
?
Yes
Check U100
pin 17,18 ≥ -
65dBm ?
Yes
Check U100
pin 13 = 2.9V
Yes
Resolder or change
U201
No
Check ANT,
No
Resolder or change
RFS101, C112,L102,L103,L104
No
Resolder or change
No
Resolder or change
F103,C116,C119,L107
No
Resolder or change
9-14
L101, C110, C108, L105
U101
UCP301
1
2
3
4
5
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