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Flow Chart of Troubleshooting
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9-21
9-14. DCS Receiver
Resolder L101, L110, L111, C105, C118
UCP200 pin W12,W13,
W14,W15
≥
2.8V
pin 10
≥
1.8V
PAM100 Pin20
≥
-65dBm
END
No
Yes
RX ON
Cell Power : -60dBm
PAM100 pin16
≥
-68dBm
UCP200 pin
E1,D1,G1,F1
≥
0.2Vp_p
UCP200
pin E1
≥
-70dBm
pin D1
≥
-70dBm
Check ANT Switch
control circuit
Resolder PAM100
Resolder C124, C125,C126,L108
Check & Resolder
UCP200,
C206,C207,C210,C211
Resolder UCP200
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Check UCP200
Check PAM100
pin
8
=
L, pin6=L,
pin 3=H