Acer P5270 Acer P5270 Projector Series Service Guide - Page 72

No Step 6 Screen Uniformity Specification Procedure Should be compliant with 75%.(Minimum) - Test methord : Plug in VGA cable and use the Full White Pattern and Full Black Pattern of "Spoke test" in service mode - Please check and ensure the unit is under the spec. - Please check and see if it's in normal condition. - If not, please return the unit to repair area. Please check and see if there are dead pixels on DMD Chip. - The total number and distance of dead pixels should be compliant with the spec. 7 Light Leak The unit can't - Test Signal : accept the leak- 1024x768@60Hz age is brighter - Test Pattern : Gray 10 than Gray 10 Patterns patterns - Please check and see if the light leaks *Note - The unit cannot accept the leakage is brighter than Gray 10 Patterns Note: Light leak on reflective edge, eyecatcher, bond wires and exposed metal. Photo Confidential 4-6 P5270/P5270 Refresh