Epson PC AX Technical Manual page 232

DIAGRAMS AND REFERENCE MATERIALS
HEV.A
Next, change the color setting to "1" to display the same
image pattern on the screen.
+-----------------------------------------------------------------+
320X200 GRAPH1CS MODE CHECK
COLOR SET 1
MAGENTA
CYAN
+----------------+ +-----------------+
I I
I I
I I
I I
I I
I I
I I
I I
I I
I I
+-----------------+
+-------------
--------------+
WHITE
+-----------------+
RED
1s the display correct (Y/N)?
I
I
I
I
I
I
+-----------------------------------------------------------------+
Confirm whether the pattern is accurately displayed, then
input the answer.
1f "N" is input, the program displays an error message.
+-----------------------------------------------------------------+
I I
I I
: Error code
=
506 :
: 320X200 GRAPH1CS MODE ERROR :
I I
I I
+-----------------------------------------------------------------+
6) 640 x 200 Graphics Mode Check
When the 640 x 200 graphics mode check is selected, the
following image pattern is displayed on the screen. This screen
has been created by writing directly to VRAM. (High-resolution mode)
7-58