Samsung GT-S3850 - GSM900 Receiver

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Level
3
Repair
8-34
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8-3-11.
GSM
900
Receiver
RX ON
Cell Power
:-60
dBm
P
AM
100
Pin
01
≥
-65
dBm
(
L104 using spectrum
analyzer)
Yes
Resolder PAM100, L104,C105,L130,C160
No
Yes
No
Check PAM100
control check
PAM100 Pin18
≥
-68
dBm
Check ANT Switch
control circuit
No
Yes
Resolder PAM100
Yes
Resolder F100
6,7
pin, L109,L111,L112,L113
F100
6,7
Pin,
L109,L111,L112,L113
≥
-
75
dBm
Yes
No
Check UCP20
0
Yes
END