LG LG-P715 - Proximity Sensor On;Off Trouble Shooting

4. TROUBLE SHOOTING
- 135 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.23 Proximity Sensor on/o Trouble Shooting
Proximity Sensor is worked as below :
Call connected -> Object moved at the sensor -> Control the screen’s on/o operation automatically
Measurement
VREG_MSME_1.8V
VREG_P3_2.85V
PROX_OUT
PROX_I2C_SCL / SDA
Change the Proximity Sensor(U7001)
Change the Main Board
Call Connected & Object moved at the
proximity Sensor
Check PROX_12C_SDA/SCL
Output & Prox_out
Work well?
LCD o?
No
No
No
Yes
Yes
Yes
START
END