Samsung GT-i8000 Service Manual page 67

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