Nokia RM-721 Service Manual page 135

RM-721; RM-722
System Module
Introduction...........................................................................................................................................................
Phone description
Energy management.............................................................................................................................................
Battery and charging
Normal and extreme voltages
Power key and system power-up
Modes of operation
Clocking scheme ............................................................................................................................................
Connectivity ........................................................................................................................................................
MicroUSB interface
SIM interface ..................................................................................................................................................
MicroSD card interface
USB interface..................................................................................................................................................
Charger interface...........................................................................................................................................
Bluetooth .......................................................................................................................................................
FM radio..........................................................................................................................................................
User interface......................................................................................................................................................
Display module ..............................................................................................................................................
Keyboard interface........................................................................................................................................
Backlight and illumination...........................................................................................................................
Camera concept ..................................................................................................................................................
Camera interface ...........................................................................................................................................
Audio concept .....................................................................................................................................................
Audio concept................................................................................................................................................
Internal microphone
Internal earpiece ...........................................................................................................................................
IHF speaker ....................................................................................................................................................
External microphone.....................................................................................................................................
External earpiece...........................................................................................................................................
Vibra ...............................................................................................................................................................
AV connector..................................................................................................................................................
Combo memory ..................................................................................................................................................
RF description .....................................................................................................................................................
Receiver (RX) ..................................................................................................................................................
Transmitter (TX) ............................................................................................................................................
List of Tables
Table 11 Nominal voltages...................................................................................................................................
Table 12 AV connector pins
List of Figures
Figure 21 Battery pin order
Figure 22 MicroUSB connector
Figure 23 SIM interface
Figure 24 MicroSD card interface
Figure 25 USB interface......................................................................................................................................
Figure 26 Charger interface...............................................................................................................................
Figure 27 Bluetooth interface
Issue 1
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