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Flow Chart of Troubleshooting
9-39
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9-16. WCDMA 2100 Receiver
RX ON
Sector PWR = -50dBm
Resolder C341,L308
Change F200,DUF302,UCP500
F200 Pin 2
>= -60dBm
Check F200
Truth Table
Pin 3 : LOW
Pin 4 : LOW
Pin 5 : LOW
Pin 6 : HIGH
No
Yes
Resolder RFS200, C200, L201, R221,
,R220
Resolder or change F200
No
F200 Pin 20
>= -70dBm
Yes
F305 Pin 6
>= -75dBm
No
Yes
Yes
DUF302 Pin 1
>= -75dBm
Yes
Resolder or change
C349,C350,L309
No