Display Test - Toshiba Satellite A10 Maintenance Manual

3 Tests and Diagnostics
3.7
To execute the Display Test, select 4 from the DIAGNOSTIC TEST MENU, press Enter
and follow the directions on the screen. The Display test contains subtests that test the
display in various modes. Move the highlight bar to the subtest you want to execute and
press Enter.
Subtest 01
Subtest 02
Subtest 03
3-18
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Display Test

VRAM Read/Write for VGA
This subtest writes the constant data (AAh and 55h) and the address data to
the video RAM. The data is read and compared to the original data.
Gradation for VGA
This subtest displays four colors: red, green, blue and white from left to right
across the screen from black to maximum brightness. The display below
appears on the screen when this subtest is executed.
To exit this subtest and return to the DISPLAY TEST menu, press Enter.
Gradation for LCD
This subtest displays bands of gradations for mixed colors, then for red, green,
and blue. Next, it displays eight solid colors full screen: red, semi-red, green,
semi-green, blue, semi-blue, white, and semi-white. The display of each color
switches automatically every three seconds.
Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)
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3.7 Display Test