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Flow Chart of Troubleshooting
9-35
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9-2-2. GSM 850 Transmitter
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
No
Replace PAM100
Replace RFS101
Check The U100
Check C102 >= 33dBm?
No
No
Yes
Yes
Yes
Yes
Check C121 >= 14dBm?
Check C100 >= 34.5dBm?
The End
Tx ON (Level :5)
Battery voltage:3.8V