JSDN

Dead Pixels / Yellow Screen Test

This flash program will run several tests on your screen. To use it click the Test Screen button.

The Check Pixels option will cycle through different color options on your LCD screen by activating all the red, green, or blue pixels separately and then displaying a white and black screen. If any pixels are stuck you can isolate them using this method. Apple considers a certain number of subpixel anomalies to be acceptable however (up to 20 or so?).

The Yellow Check will display two grey bars on your screen. Both bars should look identical in color. More information is available on the yellow tinge screen page.