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Flow Chart of Troubleshooting
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9-17
9-9. GSM Receiver
C131
>= -53dBm
Resolder RFC100(RF CN)
END
No
Yes
RX ON
RF input : CH center freq : +67.7kHz
Amp : -50dBm
C207,C208
>= -60dBm
Yes
Yes
Yes
No
C120
= 2.5V
C121,C127,C128 =0V
Resolder
U200(TRANCEIVER)
No
Resolder U402(PMIC)
Resolder RFS100(ASM)