Table of Contents
Introduction to RF troubleshooting
Troubleshooting test point locations
Introduction to Rx troubleshooting
GSM Rx chain activation for manual measurements / GSM RSSI measurement
........................................
General instructions for Tx troubleshooting
................................................................................................
Checking antenna functionality
Required manual tunings after component changes
.............................................................................
System mode independent manual tunings
...........................................................................................
PA (power amplifier) detection
Temperature sensor calibration
Rx band filter response compensation (GSM)
....................................................................................
List of Tables
Table 11 RF channel filter calibration tuning limits
.........................................................................................
Table 12 Temperature sensor calibration tuning limits
..................................................................................
Table 13 RF tuning limits in Rx calibration
List of Figures
Figure 57 RF key component placement
Figure 58 Test point locations for spectrum analyzer
........................................................................................
Figure 59 Test points for oscilloscope - bottom
..................................................................................................
Figure 60 Test points for oscilloscope - top
Figure 63 Feed and GND spots of the main antenna
........................................................................................
Figure 65 RF channel filter calibration typical values
.......................................................................................
RM-180
RF Troubleshooting and Tuning Guide
Nokia Customer Care
Issue 1
COMPANY CONFIDENTIAL
Page 7 –3
Copyright © 2006 Nokia. All rights reserved.
Содержание N72
Страница 237: ...9 System Module Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 9 1 Copyright 2006 Nokia All rights reserved ...
Страница 287: ...10 Schematics Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page 10 1 Copyright 2006 Nokia All rights reserved ...
Страница 297: ...Glossary Nokia Customer Care Issue 1 COMPANY CONFIDENTIAL Page Glossary 1 Copyright 2006 Nokia All rights reserved ...