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Flow Chart of Troubleshooting
9-24
9-16. PCS Receiver
RX ON
RF input : CH center freq : +67.7kHz
Amp : -50dBm
Yes
F100 Pin8
>= -65dBm
No
Resolder RFS100,C101
Yes
F100 3,4
>= -68dBm
Check F100
pin10,pin12 = L
No
No
Check ANT Switch
control circuit
Yes
Yes
Resolder F100
U101
pin 32 >= -70dBm
pin 33 >= -70dBm
No
Resolder C112, C116, L105
Yes
U101 pin 23,26,31
>=2.8V
101 pin 7,8,9,10
>= 1V
No
No
Check & Resolder
U100, R113
RF26MHz, RF PSU Part
Yes
Yes
Resolder U101
Check UCP201
END