Toshiba Satellite C850D Maintenance Manual page 126

3 Diagnostic Programs
4. Text Color
This test item is to check whether all 16 colors foreground and all 8 colors
background works normally in VGA text mode.
The bit4-6 of the attribute byte of a character defines 8 background colors (black,
blue, green, cyan, red, brown, magenta, and light gray), and the bit0-3 defines 16
foreground colors (dark gray, light blue, light green, light cyan, light red, light
magenta, yellow, and white besides the above 8 colors).
In the test, user is required to respond according to the instruction in the screen.
5. 80 * 25 Text Mode
48 Satellite/ Satellite Pro /C850D/C855D/L850D/L855D/L850D/C850D
3.8 Video
Maintenance Manual Maintenance Manual
Maintenance Manual Maintenance Manual