Acer PD525 PD525 Service Guide - Page 64

Inspection Procedure No. Item Keypad Function 1 (Including Remote Control) 2 Factory Reset 3 R, G, B and white color contrast 4 Screen Uniformity 5 Dead Pixel (Bright pixel) 6 Dead Pixel (Dark pixel) Description - Please check and ensure the control function of keypad is work as well. - If not, please return the unit to repair area. Please select "Factory Reset" function of "Service Mode", then ensure the reset function is work as well. This action will allow you to erase all end user's settings and restore the original factory setting. Test Signal : 1024 x 768 @ 75Hz Test Pattern : 64 RGBW scale pattern - Please check and ensure if each color is normal and distinguishable. - If not, please return the unit to repair area. Test Signal : 1024 x 768 @ 75Hz Test Pattern : Full white pattern - Please check and ensure the unit is under the spec. (60% Minimum) - If not, please return the unit to repair area. Test Signal : 1024 x 768 @ 75Hz Test Pattern : Full black pattern - Please check and ensure the unit is under the spec. (Cannot accept any bright pixel) - If not, please return the unit to repair area. Test Signal : 1024 x 768 @ 75Hz Test Pattern : Full white pattern - Please check and ensure the unit is under the spec. (Pixel number should be smaller or amount to 6 pixels) - If not, please return the unit to repair area. 59 Chapter 4