Figure 48 Nokia AV interface, input
Sensors and switches
Slide position switch
Slide position switch, a hall sensor is used for detecting if slide is open or closed position.
Hall sensor is located in main PWB and magnet is located in the slider assembly. Sensor output is to
OMAP2420POP GPIO110. Sensor signal is used by UI software to select suitable features according the device
state.
Slide Position
Open
Closed
Switch contact
Open
Closed
GPIO110
VCC
GND
SD door switch
A mechanical switch is used for SD door opening detection.
Switch is connected to card detect pin of N4200.
Door Position
Open
Closed
Switch contact
Closed
Open
Detect pin
GND
VCC
RX-44
System Module
Issue 1
COMPANY CONFIDENTIAL
Page 7 –21
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