Nokia RM-235 Service Manual page 191

Table of Contents

RM-235

System module and user interface

Introduction............................................................................................................................................................8-5

Phone description .............................................................................................................................................8-5

Energy management..............................................................................................................................................8-6

Battery and charging ........................................................................................................................................8-6

Backup battery...................................................................................................................................................8-7

Normal and extreme voltages .........................................................................................................................8-7

Power key and system power-up ....................................................................................................................8-7

Power distribution ............................................................................................................................................8-8

Clocking scheme ................................................................................................................................................8-8

Bluetooth and FM RDS radio

GPS module

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

WLAN module

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

FM transmitter module

High-speed

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

CBUS

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

FBUS

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

ECI interface

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

Charger interface

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

SIM interface

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

MicroSD card interface

Camera concept

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

Camera concept

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

User

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

User

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

I/O expander and keyboard

Display module

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

Backlight and

illumination............................................................................................................................

Ambient Light

Sensor.....................................................................................................................................

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

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

Receiver (RX)

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

Transmitter (TX)

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

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

8-23

8-24

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

8-24

8-25

8-26

Page 8 -3

Table of Contents

Chapters

Table of Contents

Troubleshooting

This manual is also suitable for:

N78 L4 L3

Nokia RM-235 Service Manual page 191

Chapters

Troubleshooting

Related Manuals for Nokia RM-235

Related Products for Nokia RM-235

This manual is also suitable for:

Table of Contents