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Flow Chart of Troubleshooting
9-22
9-14. DCS Receiver
RX ON
RF input : CH center freq : +67.7kHz
Cell Power : -60 dBm
F101 Pin13
≥ -65dBm
F101 pin3,pin4
≥ -65dBm
U101
pin19 ≥ -70dBm
pin20 ≥ -70dBm
U101 pin4, 5, 6, 7
≥ 0.2Vp_p
Yes
Resolder RFS100, C102, R121,
L101
Yes
No
Check F101
pin9=L, pin11=L
Check ANT Switch
control circuit
Yes
No
No
Resolder F101
Yes
No
Resolder L104, C107, C109
Yes
Check U101
pin12,13,29,29 ≥
2.8V
pin11 ≥ 1.8V
Check & Resolder
PMU Part
No
No
Yes
Yes
Check & Resolder
U101, OSC100
Check UCP200
END