Nokia 7250, 7250i Instruction De Maintenance

CCS Technical Documentation

NHL-4J/

Issue 2 06/03

Copyright Nokia. All rights reserved..

Page 51

Extra equipment / external RF signal not needed

Must be done separately on each band!

Start RX  Calibration EGSM (GSM900), then continue at GSM1800 band and finally on 
the GSM1900 band

This Calibration is used for calibrating DSP control words values.

Select Maintenance => Tuning => Rx DtoS Balance Calibration

NOTE! No RF-input is allowed to feed when calibrating

Choose “OK” and “Start”, tuning begins automatically at the EGSM900 band.