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Flow Chart of Troubleshooting
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9-23
9-14. DCS Receiver
Check F100
pin10,pin12 = L
Check
UCP200
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Resolder U101
Check & Resolder
U101, RF PSU Part
U101
pin12,13,28,29
>=2.8V
Resolder
C108, C109, L110
Resolder F100
Check ANT Switch
control circuit
F100 pin3
>= -70dBm
U101
pin 4,5,6,7
>= 1V
F100
Pin3
>= -68dBm
RX ON
RF input : CH center freq :
+67.7kHz
Amp : -50dBm
Yes
No
END
Resolder
CN100,C104
F100 Pin7
>= -65dBm