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Level 3 Repair
8-34
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8-3-11. GSM900 Receiver
RX ON
Cell Power : -60dBm
PAM100 Pin01
≥
-65dBm
(L104 using spectrum
analyzer)
Yes
Resolder PAM100, L104,C105,L130,C160
No
Yes
No
Check PAM100
control check
PAM100 Pin18
≥
-68dBm
Check ANT Switch
control circuit
No
Yes
Resolder PAM100
Yes
Resolder F100 6,7pin, L109,L111,L112,L113
F100 6,7Pin,
L109,L111,L112,L113
≥
-
75dBm
Yes
No
Check UCP200
Yes
END