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Flow Chart of Troubleshooting
9-24
9-16. DCS Receiver
Check F100
pin10,pin11 = L
Check UCP201
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Resolder RFS102
Check & Resolder
RFS102, C117,C123,C126
And PMU Part
RFS102 pin16,17,29,
32,36 ≥2.8V
pin 10≥1.8V
Resolder L108,L109,L110
Resolder F100
Check ANT Switch
control circuit
RFS102
pin 22 ≥ -70dBm
pin 23 ≥ -70dBm
RFS102 pin 4,5,6,7
≥ 0.2Vp_p
F100 Pin5,6
≥ -68dBm
RX ON
RF input : CH center freq : +67.7kHz
Cell Power : -60dBm
Yes
No
END
Resolder RFS100, RFS101,
R100,L101,L100,C101
F100 Pin19
≥ -65dBm