Display Test - Toshiba PORTÉGÉ M700 Maintenance Manual
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Also See for PORTÉGÉ M700:
- Maintenance manual (427 pages) ,
- User manual (264 pages) ,
- Manual (191 pages)
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3.9
Display Test
To execute the Display Test, select 4 from the DIAGNOSTIC TEST MENU, press Enter
and follow the directions on the screen. Move the highlight bar to the subtest you want to
execute and press Enter.
Subtest 01
VRAM read/write for VGA
This subtest writes the constant data (AAh and 55h) to the video RAM. The
data is read and compared to the original data.
Subtest 02
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.
Subtest 03
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. Each color displays for
three seconds.
PORTEGE M700 Maintenance Manual (960-661)
3 Tests and Diagnostics
[CONFIDENTIAL]
3-19
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Troubleshooting
