Nokia 2255 Manual page 38

2255 (RM-97)
RF Description and Troubleshooting
.
12. Adjust the AFC value so that the output signal is within +/- 100Hz. If you are
using an HP4406 or a spectrum analyzer, narrow the span to 1kHz or less.
13. If the VCTCXO does not tune, replace the UEM.
Page 38
Figure 35: Manually adjusting the AFC to center VCTCXO
©2005 Nokia Corporation
Nokia Customer Care
Company Confidential
Adjust AFC to
center
VCTCXO
manually
ISSUE 1 10/2005