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Flow Chart of Troubleshooting
9-60
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9-2-12. WCDMA 2100 Transmitter
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
Check C117 = -8 dBm ?
Check L223 = 24 dBm?
Check C102 = 23 dBm?
Yes
Check the U100
No
Yes
Yes
Yes
Replace DUF202
Replace F202
No
No
No
Check L212 = 26 dBm?
Replace PAM202
Replace RFS101
No
Yes
Yes
Check C224 = 5 dBm?
The End
Tx ON
Battery Voltage: 3.8V
(AGC for 23dBm)