Nokia 2255 Manual page 22

2255 (RM-97)
RF Description and Troubleshooting
Figure 19: RF Main Mode dialog box for Rx IF troubleshooting
5. Click Set.
Note: Be sure that the "RF Main Mode set successfully" message appears in the status bar.
6. Use a Spectrum analyzer to test TP3 (I+,I-, Q+, Q-), Set the S.A to 300KHz Center
Frequency, 200KHz SPAN and +10dBm Reference level
7. For the 1st 2 tests in the table below (Tp1,Tp2), inject CW signal at 881.52 MHz
(CH-384) at a fix –25dBm Power level (Same as in the RF tests).
8. Using Phoenix, set the Receiver to Rx mode, High Gain, Ch-384, same as in the
RF section.
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©2005 Nokia Corporation
Nokia Customer Care
Company Confidential ISSUE 1 10/2005