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Flow Chart of Troubleshooting
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9-25
9-15. GSM Receiver
RX ON
RF INPUT=62CH
AMP=-50dBm
Yes
Check PAM100
pin 20(EGSMRX)
≥-65dBm
No
Resolder or Change
PAM100
Yes
Yes
END
Check U102
pin 17, 18 (EGSMRX)
≥-65dBm
>
No
Resolder or Change
F100
Check UCP200
MOD_STANDBY=HIGH
PON_PA=LOW
BAND=LOW
Yes
No
Resolder or Change
UCP200