
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-31
This Document can not be used without Samsung's authorization
9-8. GSM Receiver
RX ON
Sector Power = -50dBm
U100 pin11
>=-60dBm
U100 pin23,24
>=-70 dBm
No
Yes
No
Check
U100 truth
table
No
Yes
Check U101 & UCP200
END
Yes
U101 pin32,33
>=-75 dBm
Yes
Resolder or Change
L108,L111,L112
No
Pin#6: Low
Pin#5: Low
Pin#4: Low
Resolder RFS100,
C104,L100,R100,
C105
Check
R106,R109,
R118,UCP200
Resolder or
Change U100