Acer S500 Service Guide - Page 53

P-sensor： Use your hand to cover p sensor to test the function. Pass Criteria： - When your hand close to p sensor（around 2cm）：the value of " Near/Far" is 0. - When your hand move away from p sensor: the value of " Near/Far" is 5. Tap "Close" and selected "Yes" or "No" to quit the test. L-sensor： The value of " LUX" is changed base on the brightness. Pass Criteria： - The light is bright：the value of " LUX" is big. - The light is dark：the value of "LUX" is small. Tap "Close" and selected "Yes" or "No" to quit the test. Chapter 4 47