User Guide

CCS Technical Documentation 6-Troubleshooting Instructions
Company confidential RM-37
Issue 1 04/2004 ©Nokia Corporation. Page 3
Table of Contents
Page No
RF Troubleshooting .......................................................................................................4
Introduction to RF troubleshooting .............................................................................4
RF Key component placement .....................................................................................5
RF Measurement points ...............................................................................................6
GSM900 & GSM1800 Transmitter ................................................................................7
General instructions for Tx troubleshooting .............................................................7
Transmitter troubleshooting diagram ........................................................................9
Pictures of transmitter signals .................................................................................12
GSM900, GSM1800 and GSM1900 Receiver .............................................................14
General instructions for Rx troubleshooting ...........................................................14
Troubleshooting diagram for GSM900 receiver .....................................................18
Troubleshooting diagram for GSM1800 receiver ...................................................19
Troubleshooting diagram for GSM1900 receiver ...................................................20
Synthesizer ...................................................................................................................21
General instructions for synthesizer troubleshooting ..............................................21
Synthesizer troubleshooting diagram ......................................................................22
Pictures of synthesizer signals .................................................................................23
Baseband troubleshooting ............................................................................................25
Main Troubleshooting Diagram ................................................................................25
Phone is dead .............................................................................................................26
Flash Programming Fault ..........................................................................................27
Phone is jammed ........................................................................................................28
SIM card fault (Insert SIM / Card rejected) ...............................................................29
Keypad Fault ..............................................................................................................30
Display Fault ..............................................................................................................32
Illumination fault .......................................................................................................33
Charger Fault .............................................................................................................34
Accessory Fault .........................................................................................................35
Camera Troubleshooting ..............................................................................................36
Camera Fault ..............................................................................................................37
Audio Fault ................................................................................................................38
FM Radio troubleshooting ...........................................................................................39
FM Radio component layout .....................................................................................39
FM Radio troubleshooting diagram ...........................................................................41
Notes to "FM Radio troubleshooting diagram" .......................................................41