4. TROUBLE SHOOTING
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Object moved at the Proximity Sensor
LCD off?
No
Check PROXI_SDA /
SCL output & Prox_out
No
Yes
Work well?
START
END
Change the Proximity Sensor U70
No
Yes
Send Key click & call connected
Chang the main board
Yes
4.14 Proximity Sensor on/off Trouble Shooting
Proximity Sensor is worked as below :
Send Key click
→
Phone number click
→
Call connected
→
Object moved at the sensor
→
Control the screen’s on/off operation automatically
Measurement
VREG_MSMP_.6V
VREG_PROX_.6V
PROX_OUT
PROX_IC_SCL / SDA