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Level 3 Repair
8-3-13. GSM900 Rx
RX ON
Cell Power : -60dBm
Yes
PAM100 Pin17 ≥
-65dBm
(R100 using spectrum
analyzer)
Yes
PAM100 Pin11 ≥
-68dBm
Yes
F100 8,9pin, L105,L108,
L107,L109 ≥
- 75dBm
Yes
Check UCP200 is working
Yes
END
No
No
No
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Resolder PAM100,
check R100(open)
Check PAM100
control check
Resolder F100,L104,L105,L107,L108,L109
8-32
No
Check ANT Switch
control circuit
Yes
Resolder PAM100
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