Rf Manual Tuning Guide; Required Manual Tunings After Component Changes - Nokia RM-132 Service Manual & Parts Manual

RM-132; RM-133
RF Troubleshooting and Manual Tuning Guide

RF manual tuning guide

Required manual tunings after component changes

Important:
in rare cases.
If, however, manual tuning is used, only relevant tunings should be performed. Refer to the following table:
Changed component
RF ASIC N7500
Any component in the GSM TX RF chain before the
PA
Any component in the GSM TX RF chain after the PA
or PA
Any component in the WCDMA TX RF chain before
the PA
Any component in the WCDMA TX RX chain after the
PA, PA, power detector or PA switch mode power
supply
Any component in the GSM RX chain
Any component in the WCDMA RX chain
VCTCXO G7500
Issue 1
After RF component changes, always use autotuning. Manual tunings are only required
COMPANY CONFIDENTIAL
Copyright © 2006 Nokia. All rights reserved.
Perform the following tunings
RF Channel Filter Calibration, Temperature Sensor
Calibration, Rx calibration (GSM), Rx band filter
response compensation (GSM), TxIQ Tuning (GSM),
Tx Power Level Tuning (GSM), Rx calibration
(WCDMA), Tx AGC & Power Detector (WCDMA), Tx
Band Response Calibration (WCDMA), Tx LO Leakage
(WCDMA)
Tx IQ Tuning, Tx Power Level Tuning
Tx Power Level Tuning
Tx AGC & Power Detector, Tx Band Response
Calibration, Tx LO Leakage
Tx AGC & Power Detector, Tx Band Response
Calibration, PA Detection
Rx Calibration, RX Band Filter Response
Compensation
Rx AGC Alignment, RX Band Response Calibration
Rx Calibration (GSM900 band)
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