User Guide

Nokia Customer Care Troubleshooting Instructions
Company Confidential RH-30/RH-31
Issue 2 11/2004 © 2004 Nokia Corporation. Page 3
Table of Contents
Page No
RF Troubleshooting...................................................................................................................................5
Introduction to RF troubleshooting ................................................................................................5
RF key component placement ...........................................................................................................6
RF measurement points ......................................................................................................................7
GSM 850, GSM900, GSM1800 & GSM1900 Transmitter..............................................................8
General instructions for Tx troubleshooting...............................................................................8
Transmitter troubleshooting diagram.........................................................................................10
Pictures of transmitter signals......................................................................................................13
Additional Information for EDGE Troubleshooting .......................................................................15
EDGE mode troubleshooting differs slightly from basic GSM troubleshooting..............15
Pictures of EDGE transmitter signals ..........................................................................................19
GSM 850, GSM900, GSM1800 and GSM1900 Receiver .............................................................23
General instructions for Rx troubleshooting ............................................................................23
Troubleshooting diagram for GSM850 receiver.......................................................................27
Troubleshooting diagram for GSM900 receiver.......................................................................28
Troubleshooting diagram for GSM1800 receiver.....................................................................29
Troubleshooting diagram for GSM1900 receiver.....................................................................30
Synthesizer ...............................................................................................................................................31
General instructions for synthesizer troubleshooting............................................................31
Pictures of synthesizer signals......................................................................................................33
Baseband troubleshooting ...................................................................................................................37
Main troubleshooting diagram .......................................................................................................39
Phone is dead ......................................................................................................................................40
Flash programming fault ..................................................................................................................41
Phone is jammed ................................................................................................................................42
SIM card fault (Insert SIM / Card rejected) ................................................................................44
Keypad fault .........................................................................................................................................45
Display fault .........................................................................................................................................47
Illumination fault ...............................................................................................................................48
Charger fault ........................................................................................................................................52
Accessory fault ....................................................................................................................................53
Audio fault ............................................................................................................................................54
Camera Troubleshooting.......................................................................................................................58
Camera fault ..................................................................................................................
......................59
FM Radio Troubleshooting ...................................................................................................................60
FM radio troubleshooting diagram ................................................................................................61
Notes to "FM Radio troubleshooting diagram"........................................................................61