Troubleshooting diagram for GSM900 receiver
Troubleshooting flow
Figure 34 GSM900 receiver troubleshooting
Results
By measuring with an oscilloscope at RXIP or RXQP on a working GSM900 receiver this picture should be seen.
Signal amplitude peak-peak 108mV. DC offset 1.0V.
RM-258; RM-259
RF Troubleshooting Instructions
Issue 1 COMPANY CONFIDENTIAL Page 4 –13
Copyright © 2007 Nokia. All rights reserved.
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