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Flow Chart of Troubleshooting
9-64
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9-2-12. 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
Yes
Check C221 = 8 dBm ?
Replace DUF201
Replace F201
No
No
No
Check C100 = 23 dBm ?
Check L205 = 24 dBm ?
Check C224 = 25.5 dBm ?
No
Replace CPL201
Check L207 = 26 dBm?
Replace PAM201
Replace RFS102
Replace RFS201
No
No
Yes
Yes
Yes
Check C219 = 7.5 dBm ?
Check C220 = 5 dBm?
The End
Tx ON
Battery Voltage: 3.8V
(AGC for 23dBm)
Summary of Contents for GT-B7320L
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