Toshiba Satellite L640D Maintenance Manual page 124

Subtest 11 Color Attributes Display
This subtest displays 16 colors: black, blue, green, cyan, red, magenta, brown,
white, dark gray, light blue, light green, light cyan, light red, light magenta,
yellow, and intensified white. The screen below displays when this subtest is
executed.
640*480 COLOR ATTRIBUTE DISPLAY
Press [Enter] Key
Pressing Enter executes VRAM mapping test which indicates vertical lines
Press Enter to execute the VRAM mapping test which displays a horizontal
line at one dot intervals using Mode 12.
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)
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Test Program for Field.
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