LG LG-D175F - Proximity Sensor

3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
3.10 Proximity Sensor
Proximity Sensor is worked as below:
Send Key click -> Phone number click -> Call connected -> Object moved at the sensor -> Control the screen’s on/o
operation automatically.
START
Send Key click & Phone number click
& Call connected
Object moved at the Proximity sensor
Change the main board
END
END
END
Check +2V85_VERG_L19( C8400 )
& I2C_SENSOR_SDA & SCL
& PROX__INT
LCD o?
Yes
Yes
Yes
Output work well?
Function is OK?
No
No