Service Manuals, User Guides, Schematic Diagrams or docs for : NOKIA Mobile Phone 7600 06-nmm3-trouble
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Customer Care Solutions
NMM-3 Series Transceivers
6-Troubleshooting
Issue 1 (11/2003) Copyright 2003 Nokia Corporation Page 6-1
Company Confidential
NMM-3 Company Confidential
6-Troubleshooting CCS Technical Documentation
Table of Contents
Page
No
Introduction to NMM-3 troubleshooting .............................................................................. 3
General guidelines for NMM-3 troubleshooting ................................................................. 3
Tools needed for troubleshooting .............................................................................. 3
General guidelines .......................................................................................................... 3
Nominal current consumption ................................................................................. 4
Diagnostics .................................................................................................................................... 5
Phone is Dead .................................................................................................................. 5
Flash Programming Fault .............................................................................................. 6
SIM Card Fault ................................................................................................................. 7
Keypad Fault ..................................................................................................................... 8
Display Fault .................................................................................................................... 10
Illumination Fault ........................................................................................................... 11
Charge Fault ..................................................................................................................... 12
Accessory Fault ................................................................................................................ 13
Audio Fault ....................................................................................................................... 14
Camera Fault .................................................................................................................... 15
USB Fault .......................................................................................................................... 16
GSM900/1800 Tx Troubleshooting ............................................................................ 17
Helgo Troubleshooting .................................................................................................. 18
PA & Antenna Switch Troubleshooting .................................................................... 19
GSM Rx Troubleshooting .............................................................................................. 20
GSM1800 Rx Troubleshooting .................................................................................... 21
GSM900/1800 Synthesizer Troubleshooting .......................................................... 22
WCDMA Tx Troubleshooting ........................................................................................ 23
PA & DC-DC Converter Troubleshooting .................................................................. 24
WCDMA Rx Troubleshooting ....................................................................................... 25
WCDMA Rx Synthesizer Troubleshooting ................................................................ 26
WCDMA Tx Synthesizer Troubleshooting ................................................................. 27
GSM/WCDMA Antenna Troubleshooting ................................................................. 28
Test Points ...................................................................................................................................... 28
Calibration required when components changed ............................................................... 31
Tables
1 Baseband Components .................................................................................................. 31
2 WCDMA tuning alignments to be run when RF components are changed .... 31
3 GSM tuning alignments to be run when RF components are changed ........... 31
Page 6-2 Copyright 2003 Nokia Corporation Issue 1 (11/2003)
Company Confidential
Company Confidential NMM-3
CCS Technical Documentation 6-Troubleshooting
Introduction to NMM-3 Troubleshooting
This document is intend to be a guide for localizing and repairing electrical faults in the
NMM-3 device. First there is a brief guide for fault localizing. Then fault repairing is
divided into troubleshooting paths.
Before any service operation you must be familiar with the NMM-3 product and module
level architecture. You should also be familiar with the NMM-3 specified service tools
such as the Phoenix service software, flashing tools and software.
General guidelines for NMM-3 trouble shooting
Tools needed for troubleshooting
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