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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. Technical brief
3.1.10 Folder OPEN/CLOSE Detection
There is a magnet to detect the Folder module status, Open or Close.
If a magnet is close to the hall-effect switch(U100), the voltage at Pin 4 of U100 goes to 0V.
Otherwise 1.8V.
This ACC_GP_FILPSENSE signal is delivered to DB3150 ACC_GPIO13.
Figure 3-1-10. Folder Open/Close Detector
0
01U
X
V
N13
02
5U
B
5
23
14
TU
O
D
D
V
D
N
G
C
N
PGND
n
0
0
1
20
1C
n
001
1
0
1C
8
V
1
_E
DDV
E
S
NE
SP
IL
F
_
PG_
C
CA
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