Toshiba portege 610ct 620ct Instruction De Maintenance

3-14

To execute the Display Test, select 4 from the DIAGNOSTIC TEST MENU, press Enter and
follow the directions displayed on the screen.  The Display test contains eleven subtests that
test the 610CT display in various modes.  Move the highlight bar to the subtest you want to
execute and press Enter.

Subtest 01

VRAM Read/Write

This subtest writes constant data FFFFh, AAAAh, 5555h, 0000h, and address
data to video RAM (1MB).  This data is then read from the video RAM and
compared to the original data.

Subtest 02

Character Attributes

This subtest displays the following character attribute modes; normal, intensi-
fied, reverse, and blinking as shown in the display below.  The character
attribute modes display the foreground color and intensified color (16 colors or
16-level gray scale) using black, blue, red, magenta, green, cyan, yellow, and
white from the color display.  The display below appears on the screen when
this subtest is executed.

CHARACTER ATTRIBUTES

NEXT LINE SHOWS NORMAL DISPLAY.
 NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT LINE SHOWS INTENSIFIED DISPLAY.
 IIIIIIIIIIIIIIIIIIIIIIIIIIIIII

NEXT LINE SHOWS REVERSE DISPLAY.
 RRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

NEXT LINE SHOWS BLINKING DISPLAY
 BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

 PRESS [Enter] KEY