Specifications
MONITOR
TEST
Upon
enterin~
this
test,
the
fol10win~
menu
is
printed
to
the
screen:
*****
VS100
Maintenance
Mode
--
t~pe
function
key
f4
to
exit
Keypad
Options:
o
Return
to
Main
Menu
1
Universal
Alisnment
Pattern
2
Stairstep
of
Halftones
3
TOSSle
Screen
Contents
For
an~
pattern,
the
screen
is
preserved
until
·0·
is
hit
to
exit.
7.3.3.1
TEST
PATTERN
11
(Universal
Alisnment
Patt~rn)
The
first
monitor
test
pattern
produces
a
stationary
diaSram
on
the
screen
for
adjustments
and
measurements,
in
five
stases:
1.
PeripherY
DiaSram:
The
first
and
last
pixel
of
each
row
and
column
are
lit
in
order
to
define
the
active
display
area
for
centrins
adjustments.
2.
Crosshatch
Pattern:
Centred
at
a
vertical
indentation
of
42
pixels
(13.68mm),
"and a
horizontal
indentation
of
48
pixels
(14.33mm),
is
a
black-on-white
crosshatch
pattern,
comprised
of
one-pixel
wide
lines
at
1/20
pixel
spacins
(6.513mm).
3.
White
Central
Outer
Box:
A
white
rectansular
box
of
dimensions
608
pixels
hiSh
(198.01mm)
b~
448
pixels
hish
(14S.89mm)
is
centred
at
the
screen
centre.
The
box
is
solid,
and
is
written
directly
to
the
screen
rather
than
masked
onto
the
crosshatch.
It
is
only
a
few
pixels
sh~
of
beinS
tansent
to
the
white
peripher~l
circle.
4.
Black
Central
Inner
Box:
A
black
SQuare
box
of
dimension
112
pixels
(36.47mm)
is
centred
at
the
screen
centre.
The
box
is
solid,
and
is
written
directly
to
the
screen
rather
than
masked
onto
the
white
box.
5.
Centred
Pehripheral
Circle:
A
white
circle
is
.senerated
about
the
screen
centre
utilsins
Michener1s
adaptation
of
Bresenham's
circle
alsorithm.
The
diameter
is
768
pixels
(250.1mm),
so
that
the
circle
is
only
five
pixels
shy
of
beinS
tanSent
to
the
crosshatch
peripher~.
7.3.3.2
TEST
PATTERN
t2
(Stairstep
of
Halftones)
The
second
monitor
test
pattern
is
a
stairstep
of
17
halftones,
soins
from
left
to
riSht.
The
fir$t
halftone
is
black,
the
last
halftone
is
white,
and
the
fifteen
halftones
in
between
are
the
standard
05100
halftones.
Each
halftone
pattern
spans
the
screen
heisht
and
is
64
pixels
wide.
7.3.3.3
TEST
PATTERN
t3
(ToSSle
Screen
Contents)
ReSardless
of
which
test
was
executed
previously,
this
command
tossles
the
entire
current
screen
contents.
This
effectivel~
doubles
the
number
of
screen
patterns
available.
The
pattern
can
always