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Level 3 Repair
8-65
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8-4-12. WCDMA1900 Transmitter
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
Yes
Check the U100
No
Yes
Yes
Yes
Check C117 = 8 dBm ?
Replace DUF202
Replace F202
No
No
Check C102 = 23 dBm ?
Check C249 = 24 dBm ?
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)