User Guide

CCS Technical Documentation
Issue 2 11/02 ¤Nokia Corporation Page 45
this is done successfully, fault detection threshold is calibrated.
Start values for calibration are defined by NMP. Using correct start values is necessary
for successful calibration. At Nokia Mobile Phone’s request, Start values can be changed
by editing nhl2pxm.ini file in \Phoenix\Products directory. Start values in nhl2pxm.ini can
be taken into use by pressing Use defaults-button.
Tools
• MJF-7 with 20% diffuse reflectance target.
Note: In troubleshooting purposes the calibration can be done also in other test jigs
and without standard target, but those calibrations never replace calibration with
MJF-7.
• Phoenix with ‘Proximity Sensor Calibration’-tool.
• The figure below shows the correct setup for proximity detector calibration.
Figure 1: Proximity Detector Calibration Setup
Calibration
• Start ‘Proximity Sensor Calibration’-tool: Maintenance -> Tuning -> Proximity
Sensor Calibration. Values in the phone permanent memory are read automati-
cally from phone memory, when calibration tool is started.