Toshiba A1 Manual Do Utilizador

Página de 417
3 Tests and Diagnostics 
3.7  Display Test 
3.7 Display 
Test 
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 
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. 
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.  The display of each color 
switches automatically every three seconds. 
3-18 
  Satellite A10/TECRA A1/Satellite Pro A10  Maintenance Manual (960-445)