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Flow Chart of Troubleshooting
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9-23
9-13. GSM Transmitter
Check
UCP300(MSM6250A)
END
No
No
No
No
Yes
Yes
Yes
Yes
Resolder or Change U100
Yes
Resolder or Change PAM101
U100(ASM)pin11>=
25dBm
PAM101(GSM PAM)
pin11
>= 20dBm
VCO100(TXVCO)pin
1 >= 2dBm
TX ON (5Level)
Resolder PAM101
PAM101 pin20
>= 1V
Resolder VCO100