Nokia RM-484 Service Manual page 181

Table of Contents

RM-484; RM-485; RM-486

System Module and User Interface

Introduction............................................................................................................................................................8-7

Phone description .............................................................................................................................................8-7

Energy management..............................................................................................................................................8-9

Battery and charging ........................................................................................................................................8-9

Backup battery...................................................................................................................................................8-9

Normal and extreme voltages

Power key and system power-up

Power distribution

Clocking scheme

.............................................................................................................................................

Magnetometer

.....................................................................................................................................................

Bluetooth and FM RDS radio

GPS module

..........................................................................................................................................................

WLAN module

......................................................................................................................................................

FM transmitter module

High-speed

USB....................................................................................................................................................

CBUS

interface......................................................................................................................................................

FBUS interface

......................................................................................................................................................

ECI interface

.........................................................................................................................................................

USB charger

interface..........................................................................................................................................

SIM interface

........................................................................................................................................................

MicroSD card interface

Camera concept

...................................................................................................................................................

Camera concept

..............................................................................................................................................

User

interface.......................................................................................................................................................

UI/slide module

..............................................................................................................................................

Display module

...............................................................................................................................................

I/O expanders and keyboards

Illumination

....................................................................................................................................................

ASICs......................................................................................................................................................................

RAPIDOYAWE

..................................................................................................................................................

EM ASIC BETTY N2300

EM ASIC VILMA N2200

Device memories

.................................................................................................................................................

Combo memory

..............................................................................................................................................

Audio concept

......................................................................................................................................................

Audio HW

architecture...................................................................................................................................

Internal microphone

Internal earpiece

............................................................................................................................................

Internal

speakers............................................................................................................................................

Vibra circuitry

.................................................................................................................................................

Accessory AV connector

External earpiece and microphone

Baseband technical

specifications.....................................................................................................................

External interfaces

SIM IF

connections..........................................................................................................................................

Charger connector and charging interface connections & electrical characteristics

Internal

interfaces..........................................................................................................................................

Back-up battery interface electrical

RF technical

description......................................................................................................................................

RF block

diagram............................................................................................................................................

Issue 1

......................................................................................................................

.................................................................................................................

.........................................................................................................................................

module.................................................................................................................

.......................................................................................................................................

........................................................................................................................................

.......................................................................................................................

.....................................................................................................................................

......................................................................................................................................

.................................................................................................................................

..............................................................................................................

.........................................................................................................................................

characteristics....................................................................................

COMPANY CONFIDENTIAL

Table of Contents

8-10

8-11

8-12

8-13

8-14

8-15

8-16

8-17

8-18

8-19

8-20

8-21

8-22

8-24

8-25

8-26

8-27

8-28

8-29

8-30

..............................

8-30

8-31

8-32

Page 8 -3

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