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9-17. GSM900 Receiver
RX ON
Sector PWR=-50dBm
MOD101 Pin 2
>= -60dBm
Yes
MOD101 Pin
14,15
Yes
U101
Pin 48,49
>= -75dBm
Yes
Change U101 & UCP301
No
Resolder RFS101,C1024,L101
No
No
Resolder or change L105,L106,L107
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Check MOD101
Truth Table
Yes
Pin 3 : LOW
Pin 4 : LOW
Pin 5 : HIGH
Pin 6 : LOW
9-31
Flow Chart of Troubleshooting
Resolder or change
MOD101
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