Proximity Sensor - LG -P500 Service Manual

3. TECHNICAL BRIEF

3.15 Proximity Sensor

When call connected, the object is moved nearer to the proximity sensor.
LCD backlight and Touch screen is disable operation automatically.
U700 : GP2AP002S00F IC used I2C interface to MSM7227
VREG_MSMP_2.6V
PROX_COMPASS_I2C_SCL
PROX_COMPASS_I2C_SDA
LGE Internal Use Only
R701 R702
4.7Kohms 4.7Kohms
8
SCL
7
SDA
6
VIO
5
GND
C707
1u
Figure. Proximity Sensor Schematic
Figure. Proximity Sensor Block Diagram
VREG_PROX_2.8V
R700
10
U700
1 R703
LEDA
10
2
LEDC
3
VCC
4
VOUT
C708
0.1u
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Copyright © 2010 LG Electronics. Inc. All right reserved.
C705
10u
PROX_OUT
C709
4.7u
Only for training and service purposes