LG KU950 Service Manual page 56

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 U901 goes to 0V.
Otherwise, 2.7V.
This folder signal is delivered to MSM6275 GPIO43.
SWIVEL_DETECT
Figure. Schematic of folder on/off detection circuit
VREG_MSMP_2.7V
R923
62
A3212EELLT-T
VDD
G1
R925
OUT G2
U901
47K
C902 C903
0.1u 10p
SWIVEL_DETECT
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3. TECHNICAL BRIEF