4. TROUBLE SHOOTING
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4.21 Proximity Sensor on/off trouble
Proximity Sensor is worked as below:
Send Key click -> Phone number click -> Call connected -> Object moved to/from the sensor -> Control the screen’s on/
off operation automatically
Check
PROXI_3.0V (TP1)
& SCL/SDA(TP3,4) & INT(TP2)
Yes
START
LCD off?
Change the mina board
Work well?
Change the Earjack FPCB.
No
Send Key cilk & call connected.
Object moved to the proximity sensor
IS it OK?
END
Yes
Yes
No