3.7 Display Test
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
T1900tr1900C's display
in
various modes. Move the highlight bar to the subtest you
want to execute and press Enter.
Subtest
01
Subtest 02
VRAM ReadlWrite
This subtest writes constant data
FFFFh,
AAAAh, 5555h,
OOOOh
and address
data to video RAM (256KB). The data
is
then read from the video RAM
and
compared to the original data.
Character Attributes (mode I, 13h)
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.
NEXT
LINE
SHOWS
INTENSIFIED DISPLAY.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
NEXT
LINE
SHOWS
REVERSE
DISPLAY.
NEXT
LINE
SHOWS
BLINKING
DISPLAY
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
00
08
BLACK
01 09
BLUE
04
OC
RED
05
OD
MAGENTA
02
OA
GREEN
03
OB
CYAN
06
OE
YELLOW
07
OF
WHITE
PRESS
[Enter]
KEY
3-15
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