Folder On/Off Operation - LG U8500 Service Manual

3. TECHNICAL BRIEF

3.10.6 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 pin1 of U600 goes to 0V. Otherwise, 2.7V.
This folder signal is delivered to MSM6250 GPIO80.
Figure 3.10.6-1 Schematic of Folder ON/OFF detection circuit
FOLDER_SENSE
R600
VREG_MSMP_2.7V
62
FOLDER_DETECT
C601
0.1u
- 58 -
U600 A3212EEH-T
1 6
OUTPUT VDD
2 5
NC1 NC2
4
GND2
3 7
GND1 PGND