LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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3.12.6 Folder ON/OFF Operation
There is a magnet to detect the Folder status, opened or closed.
If a magnet is close to the hall-effect switch, the voltage at pin OUT of U405 goes to 0V. Otherwise,
2.8V. This folder signal is delivered to MSM6260 GPIO92.
FOLDER_DETECT
NC
3
2
OUT
VDD
1
VSS
4
EM-0781-T5
U405
33p
C826
120p
C416
R408
100K
R407
62
VREG_MSMP_2.8V
FOLDER_DETECT
Figure. Schematic of Folder ON/OFF detection circuit