Toshiba Satellite M20, Maintenance Manual

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3.8 Video 3 Diagnostic Programs
Subtest 06 LCD Panel Test
This test item is to check whether there is any fault in its resolution by displaying
the RGB gradient color screens.
Subtest 07 Register Test
This test item is to check whether the registers of the video adapter works
normally.
Subtest 08 Color Purity Test
This test item is to check whether the system (the video adapter and the display)
could display the purity color of red, green, blue, black and white.
In the test, user is required to respond based on the instruction in the screen.
Subtest 9 Direct Color Test
This test item is to check the video adapter’s composing ability of direct color in
high and true color mode.
In the test, user is required to respond based on the instruction in the screen.
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