Service manual

Diagnostic Video Tests: Dell Latitude CP
E yellow* brown
F intense white* white
* These colors blink during the test.
Color Attributes Subtest (40 x 25)
The 40-column x 25-line color attributes subtest is the same as the previous subtest except
that the characters are displayed in 40-column by 25-line (double-wide) text mode. Type y if
each character is displayed correctly; otherwise, type n.
Color Bars Subtest
The color bars subtest displays 16 bars in different colors with background intensity enabled.
Under each bar is the name of the color that should be displayed. Type y if each color bar is
displayed correctly; otherwise, type n.
Text Mode Pages Test
The Text Mode Pages Test checks the video subsystem's ability to map and present all
available video pages on the display or monitor, one page at a time. The test displays eight
successive screens, the first of which contains 21 lines of 77 zeros. The remaining seven
screens are identical to the first, except that each screen substitutes a different numeral (1
through 7) for the zeros.
Type y if all the rows of numbers on each screen are displayed correctly; otherwise, type n.
Graphics Mode Test
The Graphics Mode Test checks the video subsystem's ability to present graphics mode data
and colors. This test displays a number of different screens, each of which allows you to check
some aspect of graphics mode data and colors. The following subsections describe the
Graphics Mode Test screens in the order in which they appear.
320 x 200 Graphics Mode Screens
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