Table of Contents
Advertisement
RM-305; RM-306
RF troubleshooting
General RF troubleshooting ..................................................................................................................................5-5
General RF troubleshooting .............................................................................................................................5-5
RF key components ...........................................................................................................................................5-5
Auto tuning .............................................................................................................................................................5-7
Receiver GSM900/1800 ..........................................................................................................................................5-9
General instructions for GSM900 RX troubleshooting ...................................................................................5-9
GSM900/1800..................................................................................................................................
GSM850/1900..................................................................................................................................
Introduction....................................................................................................................................................
troubleshooting...................................................................................................................................
FM radio
troubleshooting..............................................................................................................................
FM radio troubleshooting diagram
List of Figures
Figure 30 RF key components on PWB.................................................................................................................5-5
Figure 31 Test points on FM module ....................................................................................................................5-6
Figure 32 Supply and control points at FEM (N7100) and Litti (D2901)............................................................5-7
Figure 33 Auto tuning concept with CMU200......................................................................................................5-8
Figure 34 Auto tuning concept with RX and TX tuning devices and splitter....................................................5-8
Figure 35 GSM900 RF controls window
Figure 36 GSM 900 Receiver
Figure 37 GSM1800 RF controls
Figure 38 GSM 1800 Receiver troubleshooting
Figure 39 Measurement points at the RX SAW Filters - Z7101/Z7100
Figure 40 GSM850 RF controls window
Figure 41 GSM 850 Receiver
Issue 2
Table of Contents
............................................................................................................
.......................................................................................................................................
............................................................................................................
troubleshooting................................................................................
..............................................................................................................................
power............................................................................................................................
troubleshooting................................................................................
..............................................................................................................................
power............................................................................................................................
.....................................................................................................................................
..............................................................................................................
.............................................................................................................
troubleshooting...................................................................................................
window...........................................................................................................
.............................................................................................................
troubleshooting...................................................................................................
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
.........................................................................................
.............................................................................
.......................................................................................
...............................................................................
.........................................................................................
..............................................................................
.......................................................................................
...................................................................................
..............................................................................
.................................................................................
...................................................................................
..............................................................................
.................................................................................
................................................................................................
...........................................................
5-11
5-12
5-13
5-14
5-14
5-14
5-16
5-17
5-18
5-19
5-19
5-19
5-21
5-22
5-25
5-26
5-26
5-30
5-30
5-32
5-33
5-36
5-37
5-37
5-41
5-41
5-41
5-41
5-43
5-10
5-11
5-12
5-13
5-14
5-15
5-16
Page 5 -3
Advertisement
Chapters
Table of Contents
Troubleshooting
