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Flow Chart of Troubleshooting
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9-53
9-21. WCDMA2100 Receiver
**If you check the tx chain,
Check the not only RF Device but also resistor, inductor and capacitor.
Continous Rx ON
RF Input : 10700CH
Amplitude : -50dBm
Yes
No
Replace DUF100
Check C138 = -59 dBm?
Check RFS100 or
F100
(the method like GSM)
Resolder U101 or Change
Check Antenna Contact
No
No
Yes
Yes
Yes
Normal Condition
Catch the channel?
Check C131 = -56 dBm?
The End