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Flow Chart of Troubleshooting
9-44
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9-28. WCDMA 900 Transmitter
TX ON
(UE Target Power 24 dBm)
MOD101 Pin 22
>= 15dBm
F103 Pin 6
>= 15dBm
END
Resolder RFS101,C1024,L101
Resolder or change
MOD101
MOD101 Pin 2
>= 15dBm
Check MOD101
Truth Table
Pin 7 : LOW
Pin 6 : LOW
Pin 8 : LOW
Pin 9 : HIGH
No
No
Yes
Yes
Yes
NO
YES
Resolder C152,L116
Check U101
Resolder or change F102,L122,L118,C174
U102 Pin 7
>= 15dBm
U102 Pin 4
>= 15dBm
U100 Pin 58
>= 15dBm
Yes
Yes
Resolder or change
F102
Resolder or change F102
Yes
NO
NO
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