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Flow Chart of Troubleshooting
9-16. PCS Receiver
RX ON
RF input : 660CH center freq : 1959.8MHz
Amp : -50dBm
Yes
F100 Pin13
>= -65dBm
Yes
F100 pin5,6
>= -68dBm
Yes
U101
pin 21 >= -70dBm
pin 20 >= -70dBm
Yes
U101 pin 4,5,6,7
>= 1V
Yes
Check UCP200
END
No
Resolder RFS100,C103,L106
No
No
Resolder C101, C102, L103
No
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Check F100
pin9,pin11 = L
Yes
U101 pin 11,12
16,17,32,33>=2.8V
Yes
9-24
No
Check ANT Switch
control circuit
Resolder F100
No
Check
U101, OSC100
RF26MHz, RF PSU Part
Resolder U101
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