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4. Trouble Shooting
4.9 Slide Up/Down Trouble Shooting
Slide Operation scheme is shown below.
4.9.1 Slide Operation(ON/OFF)
- There is a magnet to detect the slide status, opened or closed.
- If a magnet is down to the hall-effect switch(U100), the voltage at pin 1 of U100 goes to 0V.
Otherwise, 1.8V
- This Slide signal is delivered to DBB, and the status of Slide is reported.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
SLIDE SWITCH
1u
C102
1
OUT
PGND
5
VDD
4
U100
BU52031NVX
GND
2
NC
3
0.01u
C103
VRIO
SLIDE
Slide Magnet
Hall Effect Switch
(U100)
High
Low
DBB(U103)
GPIO 57
(R10 pin)
1.8 V
0 V
Slide Signal Status
L : Down (Magnetized) => Slide Down
H : Up (Not magnetized) => Slide Up
Block Diagram (Folder On/Off)
Summary of Contents for KM710
Page 1: ...Date May 2008 Issue 1 0 Service Manual Model KM710c Service Manual KM710c Internal Use Only ...
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