Nokia RM-506 Service Manual page 201

RM-505; RM-506
System Module and User Interface
Introduction............................................................................................................................................................8-7
Phone description .............................................................................................................................................8-7
Energy management..............................................................................................................................................8-9
Battery and charging ........................................................................................................................................8-9
Backup battery................................................................................................................................................
Normal and extreme voltages
Battery drains fast
Power key and system power-up
Power distribution
Clocking scheme .............................................................................................................................................
Bluetooth and FM RDS radio
I/O Expander ........................................................................................................................................................
GPS interface ........................................................................................................................................................
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.......................................................................................................................................................
Resistive touch screen
Proximity sensor
Touch screen controller
Display .............................................................................................................................................................
Display .............................................................................................................................................................
Backlight and illumination............................................................................................................................
Digital Ambient Light Sensor (ALS)
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
DA converter, headphone amplifier and FM transmitter
Baseband technical specifications.....................................................................................................................
External interfaces
SIM IF connections..........................................................................................................................................
Charger connector and charging interface connections & electrical characteristics
Issue 1
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troubleshooting.............................................................................................................
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COMPANY CONFIDENTIAL
Copyright © 2009 Nokia. All rights reserved.
Table of Contents
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8-10
8-10
8-11
8-11
8-12
8-13
8-14
8-15
8-16
8-18
8-18
8-19
8-20
8-20
8-20
8-20
8-21
8-22
8-22
8-22
8-24
8-24
8-24
8-25
8-26
8-26
8-27
8-30
8-31
8-31
8-31
8-31
8-32
8-32
8-32
8-32
8-33
8-33
8-34
8-34
8-34
8-36
8-36
8-36
8-36
.............................. 8-37
Page 8 -3