Table Of Contents - Nokia NHM-1 Series Troubleshooting Instructions

CCS Technical Documentation

Table of Contents

RF Troubleshooting ....................................................................................................... 5
Introduction to troubleshooting ...................................................................................5
RF Key component placement .....................................................................................7
RF Measurement points ...............................................................................................8
Transmitter troubleshooting diagram ........................................................................10
Helgo Troubleshooting diagram ................................................................................11
PA and Antenna Switch Troubleshooting diagram ...................................................12
Diagrams of transmitter signals .................................................................................13
GSM900 & GSM1800 Receiver .................................................................................. 15
General instructions for Rx troubleshooting ..............................................................15
Troubleshooting diagram for GSM900 receiver ........................................................17
Troubleshooting diagram for GSM1800 receiver ......................................................18
GSM Synthesizer .......................................................................................................19
General instructions for synthesizer troubleshooting.............................................. 19
Synthesizer troubleshooting diagram ........................................................................20
Diagrams of synthesizer signals ................................................................................21
WCDMA 2100 Transmitter ......................................................................................... 22
WCDMA TX Troubleshooting diagram ....................................................................23
WCDMA2100 Receiver............................................................................................... 26
General instructions for Rx troubleshooting ..............................................................26
Troubleshooting diagram for WCDMA receiver:: ....................................................30
WCDMA Synthesizers................................................................................................. 32
General instructions for WCDMA RX- or TX-synthesizer troubleshooting .............32
WCDMA RX-synthesizer: ...................................................................................... 33
WCDMA RX-synthesizer troubleshooting diagram .................................................34
Diagrams of WCDMA RX-synthesizer signal:....................................................... 35
WCDMA TX-synthesizer: .........................................................................................36
WCDMA TX Synthesizer troubleshooting diagram .................................................37
Diagrams of WCDMA TX-synthesizer signal:....................................................... 38
Baseband troubleshooting ............................................................................................ 39
Main Troubleshooting Diagram ................................................................................39
Phone totally dead ......................................................................................................40
Flash programming problem ......................................................................................41
Phone jammed ...........................................................................................................42
Charging problem ......................................................................................................43
SIM card reading problem .........................................................................................44
Audio problem ...........................................................................................................45
Keypad problem .........................................................................................................46
Display problem .........................................................................................................47
Illumination problem .................................................................................................48
ACI Accessory problem ............................................................................................49
USB problem .............................................................................................................50
Issue 1 11/03
Nokia Corporation.
NHM-1
Troubleshooting instructions
Page No
Page 3