Nokia 3520 Instruction De Maintenance

Nokia

Nokia Customer Care

System Module

Company Confidential RH-21

Issue 2 07/2004



2004

Nokia Corporation.

Page 3

Contents

Page No

Transceiver RH-21......................................................................................................... 5

Introduction ..................................................................................................................5
Operational Modes .......................................................................................................6
Engine Module .............................................................................................................6

Environmental Specifications ................................................................................... 6
Temperature Conditions............................................................................................ 6

Baseband Module ........................................................................................................7
UEM ............................................................................................................................7

UEM introduction ..................................................................................................... 7
Regulators.................................................................................................................. 7
RF Interface............................................................................................................... 9
Charging Control....................................................................................................... 9
Digital Interface......................................................................................................... 9
Audio Codec.............................................................................................................. 9
UI Drivers................................................................................................................ 10
AD Converters......................................................................................................... 10
UPP8M .................................................................................................................... 10
Blocks...................................................................................................................... 10

Flash Memory ............................................................................................................10

Introduction ............................................................................................................. 10

User Interface Hardware .............................................................................................. 11

LCD ...........................................................................................................................11

Introduction ............................................................................................................. 11
Interface................................................................................................................... 11

Keyboard ....................................................................................................................11

Introduction ............................................................................................................. 11
Power Key ............................................................................................................... 11

Lights .........................................................................................................................11

Introduction ............................................................................................................. 11
Interfaces ................................................................................................................. 11
Technical Information ............................................................................................. 11

Vibra ..........................................................................................................................12

Introduction ............................................................................................................. 12
Interfaces ................................................................................................................. 12

Audio Hardware........................................................................................................... 12

Earpiece .....................................................................................................................12

Introduction ............................................................................................................. 12

Microphone ................................................................................................................12

Introduction ............................................................................................................. 12

MIDI Speaker ............................................................................................................12

Introduction ............................................................................................................. 12

Battery ........................................................................................................................13
Phone Battery .............................................................................................................13

Introduction ............................................................................................................. 13
Interface................................................................................................................... 13

Battery Connector ......................................................................................................14

Accessories Interface ................................................................................................... 15