Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement
of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-8-3. Proximity
Proximity Sensor does not work
Yes
No
No
Replace U3012
Check the voltage
C3070 =1.8V
(Sensor
’s IO voltage)
Yes
No
No
Replace U3014
No
Yes
No
Replace U3031
Check the voltage
C3069 =3.3V
(Sensor
’s LED voltage)
Check SDA, SCL of U3031
(I2C is OK?)
Yes
No
END