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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-50
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9-20. WCDMA 900 Receiver
RX ON
Sector PWR = -50dBm
Resolder C303,L300
Change F200,DUF300,UCP500
F200 Pin 2
>= -60dBm
Check F200
Truth Table
Pin 3 : LOW
Pin 4 : HIGH
Pin 5 : LOW
Pin 6 : HIGH
No
Yes
Resolder RFS200, C200, L201, R221,
,R220
Resolder or change F200
No
F200 Pin 21
>= -70dBm
Yes
DUF300 Pin 6
>= -75dBm
No
Yes
Yes
DUF300 Pin 1,8
>= -75dBm
Yes
Resolder or change
C304,C308,L302,L303
No