Tandy Color Computer 3 Manual page 30

Using
the Display
Your program
should look
like this:
10
WIDTH
32
20
CLS
30 FOR
X
=
TO 63
40
Y
= 15
50
RESET (X,Y)
60
NEXT
X
70 FOR
Y
= TO
31
80
X
=
31
90
RESET
(X,Y)
100
NEXT
Y
110 GOTO 110
If
you
find
an
error,
retype the
line,
beginning
with
the
line
number.
Next, type:
RUN rENTER]
You
should
now
have a green background, surrounded by
black,
with black horizontal
and
vertical lines
intersecting
at
the exact center
of
the screen.
Th^
Color
Computer
3 generates
a rectangular
image designed
to
fill
most
of
your display screen. Adjust your
display's horizontal-
and
vertical-centering controls
until this
image
is
centered as
well
as
possible.
Don't worry
if
you
can't get a perfectly
centered
image
or
if
you
notice
slight
distortions
in
certain
areas
of
your screen.
These
minor
variations
depend on
the condition of
your display
unit,
(If
the
distortions
are severe, however,
consult
a
qualified
service
technician.)
20