Nokia 2228Arte Service Manual page 95

RM-377
System Module Description
Introduction....................................................................................................................................................................5-5
Phone description.......................................................................................................................................................5-5
System block introduction.........................................................................................................................................5-5
Phone key components and placement....................................................................................................................5-6
Energy management......................................................................................................................................................5-9
Battery and charging..................................................................................................................................................5-9
Normal and extreme voltages.................................................................................................................................5-10
USB.............................................................................................................................................................................5-10
User interface................................................................................................................................................................5-10
Display ......................................................................................................................................................................5-10
Backlight and illumination ......................................................................................................................................5-11
Camera.....................................................................................................................................................................5-11
Audio concept ..............................................................................................................................................................5-11
Internal audio...........................................................................................................................................................5-12
RF description...............................................................................................................................................................5-12
Receiver (RX) .............................................................................................................................................................5-12
Transmitter (TX) .......................................................................................................................................................5-12
FM.............................................................................................................................................................................5-13
Technical specifications...............................................................................................................................................5-14
QSC6030 System Module Description..........................................................................................................................5-14
Environmental conditions........................................................................................................................................5-14
List of Tables
Table 1 Nominal voltages.........................................................................................................................................5-10
List of Figures
Figure 5 Main board, top side..................................................................................................................................5-8
Figure 6 Battery pin order........................................................................................................................................5-9
Figure 7 Battery connector.......................................................................................................................................5-9
Issue 1
Table of Contents
COMPANY CONFIDENTIAL
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