Sensors And Switches; Slide Position Switch; Sd Door Switch - Nokia RX-44 Service Manual

RX-44
System Module

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
Switch contact
GPIO110

SD door switch

A mechanical switch is used for SD door opening detection.
Switch is connected to card detect pin of N4200.
Door Position
Switch contact
Detect pin
Issue 1
Figure 48 Nokia AV interface, input
Open
Open
VCC
Open
Closed Open
GND VCC
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
Closed
Closed
GND
Closed
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