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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
10-30
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10-10.
GSM900 Receiver
RX ON
Sector PWR=50dBm
Resolder or change F101
,
L104, L105, C136
Change U100
&
UCP200
PAM100 Pin8
>= -60
dBm
Check PAM100
Truth Table
Pin
1:
HIGH
Pin
27 :
HIGH
Pin
28 :
HIGH
No
Yes
Resolder RFS100, C103, R100
,
L100
,
L101, C111
Resolder or change PAM100
No
F100 Pin
5
>= -70
dBm
Yes
U100 Pin
48,49
>= -75
dBm
No
Yes
Yes