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Flow Chart of Troubleshooting
9-13. GSM850 Transmitter
TX ON (5Level)
Yes
PAM100 Pin31 ≥
-65dBm
Yes
PAM100 pin13
≥ -30dBm
Yes
END
①
No
Resolder PAM100, C116, C119,
No
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C121
No
Check PAM100
pin16 = L (2.6V),
Pin17 = L
Yes
9-22
Check ANT Switch
control circuit
②
Change or Resolder PAM100
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Table of Contents
Troubleshooting
