MFJ Enterprises FJ-1480B User manual

MFJ VIDEO EFFECTS TITLER
MODEL MFJ-1480B
OWNER’S MANUAL
CAUTION: Read All Instructions Before Operating Equipment.
MFJ ENTERPRISES, INC.
P. O. BOX 494, MISSISSIPPI STATE, MS. 39762, USA

VIDEO EFFECTS TITLER (VET)
OWNER’'S MANUAL
You
are
about
to
use
one
of
the
most
innovative
tools
available
in
the
video
field.
By
combining
your
creativity
and
an
understanding
of
how
to
use
the
VET,
you
should
be
able
to
create
impressive
video
productions.
The
VET
was
designed
to
operate
with
a
standard
NTSC
external
video
signal
from
a
camera,
VCR,
or
video
disk.
When
in
the
External
mode,
the
VET
operates
within
the
NTSC
standard
and
can
be
record-
ed
on
1/2
inch
VCRs.
The
VET
has
a
non-NTSC
internal
syne
generator
and
can
be
operated
without
a
camera
or
external
video
source.
However,
the
VET's
video
image
may
not
record
well
using
the
inter-
nal
sync
generator.
If
quality
is
not
acceptable,
a
standard
NTSC
external
video
signal
(such
as
a
color
video
camera)
can
be
used
to
operate
the
VET
within
the
NTSC
standard.
CABLES
-
Because
of
the
variety
of
ways
that
the
VET
can
be
hooked
up,
no
cables
were
provided
with
the
unit.
Before
you
buy
any
cables
or
start
hooking
up
equipment,
it
would
be
a
good
idea
to
gather
up
all
your
audio
and
video
cables
and
the
owners
manuals
for
your
video
equipment
and
sketch
out
a
cable
configuration.
For
the
best
results,
you
should
be
using
high
quality
75
ohm
shielded
coax
cables
with
RCA
phono
plugs
at
each
end.
VET
VIDEO
TO
VCR
CONNECTION
-
The
first
and
the
only
mandatory
connection
is
between
the
VET
and
a
VCR(or
a
monitor
if
you
are
composing
titles
for
later
recording).
Connect
the
VET’s
VIDEO-
OUT
to
the
VIDEO-IN
of
your
VCR
or
monitor.
Your
VCR
should
be
connected
to
a
TV
or
monitor
as
specified
in
your
VCR
operating
manual.
CAMERA
CONNECTION
-
The
VET
was
designed
to
operate
with
a
color
video
camera
equipped
with
a
10-pin
connector
used
with
the
VHS
format
VCRs.
It
is
preferable
that
the
VET
be
turned
off
before
connecting
the
camera
but
it
is
not
necessary.
If
the
VET
is
on
when
connecting
the
camera,
try
not
to
jiggle
the
connection
while
screwing
in
the
retaining
ring.
This
could
power
the
camera
on
and
off
and
put
unnecessary
stress
on
the
camera
components.
If
you
intend
to
mix
the
video
camera
signal
with
the
VET
image,
be
sure
the
external
source
switch
on
the
back
of
the
VET
is
set
to
the
camera
input.
VET
CAMERA
AUDIO
CONNECTIONS
-
There
are
several
different
ways
that
the
VET’s
camera
audio
outputs
may
be
connected
to
a
VCR.
Read
your
VCR
and-camera
operating
manuals
to
deter-
mine
which
approach
is
applicable.
If
your
camera
and
VCR
are
not
the
same
brand,
additional
effort
may
be
required
to
get
things
set
up
properly.
;
i
“MIC”
Audio
Inputs
-
Some
portable
VCRs
have
“MIC”
inputs(microphone).
These
inputs
can
be
mono
or
stero
and
are
usually
“high
impedance".
“High
impedance”
inputs
are
very
sensitive
and
can
be
over-driven
when
“line”
signals
are
connected.
Many
portable
VCRs
include
a
special
cable
called
an
“attenuator”
that
matches
“line”
outputs
with
"MIC"
inputs.
Check
your
VCR
operating
manual.
The
“MIC”
input
to
your
VCR
may
be
stereo
which
will
require
a
stereo
microphone
plug.
Another
situation
may
exist
where
the
use
of
the
attenuator
actually
blocks
your
camera's
audio
signal
and
no
audio
signal
gets
recorded.
If
this
happens,
you
will
need
a
phono-to-MIC
converter
without
an
at-
tenuator.
Audio-In
-
Most
console
and
some
portable
VCRs
have
stereo(left
and
right)
or
mono
audio
inputs
with
RCA
phono
jacks.
You
should
be
able
to
directly
connect
the
VET’s
camera
audio
output(s)
to
the
Audio-In
connection(s)
of
the
VCR.
Be
sure
you
read
your
VCR
operating
manual
to
get
these
connec-
tions
and
any
necessary
switch
settings
correct.
VET
EXTERNAL
VIDEO
INPUT
CONNECTION
-
Connect
the
VIDEO-OUT
signal
from
a
second
VCR
or
video
disk
to
the
External
VIDEO-IN
jack
on
the
VET.
Again,
be
sure
the
external
video
source
switch
is
set
to
the
desired
external
video
source.
PICTURE
QUALITY
-
When
connected
to
an
external
video
source
and
in
the
External
Mode,
the
quali-
ty
of
the
image
produced
by
the
VET
is
totally
dependent
on
the
quality
of
the
external
video
source.
The
VET
will
not
degrade
the
external
video
picture
quality.
However,
it
will
not
improve
it
either.
The
use
of
a
poor
external
video
source
such
as
a
third
or
fourth
generation
video
tape,
a
tape
recorded
from
a
weak
broadcast
signal,
or
a
signal
coming
from
a
defective
VCR
may
result
in
jittery
characters
or
Page 1

characters
may
jump
up
and
down
or
tear.
Always
use
the
highest
quality
external
video
source
possi-
ble.
Most
first
and
second
generation
video
tapes,
video
cameras,
and
video
disks
provide
adequate
ex-
ternal
video
sources.
KEYBOARD
FUNCTION
REFERENCE
(In
Alphabetic
Order)
A
(Special
Function
Key
-
A):
This
key
is
used
for
the
Auto
Center
feature.
Three
other
special
function
keys
(B,C,
and
CNTL)
are
intended
for
use
with
future
expansion
cartridges.
ALPHABETIC
KEYS
(A
though
Z):
These
keys
insert
alphabetic
characters
into
the
page
memory.
They
will
only
perform
when
th
cursor
is
present,
the
screen
is
unblanked
(see
BORDERBLANK
key),
and
when
an
object
is
not
present
(see
OBJect
key).
That
is
when
the
cursor
is
deleted
or
the
screen
has
been
BLANKed
or
one
of
the
four
objects
is
present,
the
alphabetic
keys
will
not
work.
The
Vet
is
initially
set
up
to
enter
both
upper
and
lower-case
letters.
You
can
enter
capital
letters
by
holding
down
the
SHIFT
key
at
the
same
time
an
alphabetic
key
is
pressed,
or
you
can
set
the
“‘cap-
lock”
with
the
CURSOR
key
(SHIFTed)
and
capital
letters
can
be
entered
without
the
SHIFT
key.
The
VET
will
display
two
different
font
styles
only
when
an
external
Font
Cartridge
has
been
con-
nected.
Without
an
external
Font
Cartridge,
only
the
internal
font
can
be
displayed.
However,
when
entering
characters,
the
type
of
cursor
present
on
the
screen
determines
which
of
the
two
fonts
is
stored
in
page
memory
without
regard
to
which
font
style
(font-1
or
font-2)
is
seen
on
the
screen
at
the
time
the
characters
are
entered.
When
a
Single-Font
cariridge
is
connected
to
the
VET,
Font-1
characters
will
be
displayed
in
the
ex-
ternal
font.
However,
all
Font-2
characters
will
continue
to
be
displayed
in
the
internal
font.
When
a
Double-Font
Cartridge
is
connected
to
the
VET,
both
Font-1
and
Font-2
characters
are
displayed
in
the
two
external
fonts.
It
is
important
to
understand
that
characters
are
stored
in
the
page
memory
iden-
tified
as
Font-1
or
Font-2.
The
only
way
to
change
the
font
identity
of
a
character
is
to
reenter
the
character
using
the
other
font
(as
specified
by
the
cursor).
With
this
approach,
titles
can
be
entered
and
edited
in
memory
and
then
viewed
using
a
variety
of
fonts
by
simply
turning
off
the
VET
and
connecting
a
different
Font
Cartridge.
ARROW
KEYS
(UpDown,
Left‘Right):
The
primery
function
of
these
keys
is
to
move
the
cursor.
Moving
the
cursor
does
not
affect
the
contents
of
memory
in
any
way.
Existing
characters
and
colors
remain
unchanged
until
another
character
is
entered.
The
UpDown
Arrow
key
will
move
the
cursor
down
(unSHIFTed)
or
up
(SHIFTed).
You
will
also
notice
that
when
the
Down-Arrow
is
pressed
and
the
cursor
is
on
the
bottom
line,
it
will
jump
to
the
top
line.
A
similar
response
is
seen
when
the
cursor
is
on
the
top
line
and
the
Up-Arrow
is
pressed.
The
cursor
will
jump
to
the
last
line.
The
Left-Arrow
(unSHIFTed)
will
move
the
cursor
from
right
to
left.
It
will
also
move
the
cursor
to
the
right
most
position
of
the
next
line
up
after
reaching
the
end
ofa
line.
It
will
also
jump
from
the
top
left
position
on
the
first
line
to
the
right
most
position
of
the
bottom
of
the
page.
The
Right-Arrow
(SHIF
Ted)
will
move
the
cursor
to
the
left
most
position
of
the
next
line
after
reaching
the
end
ofa
line.
It
will
also
jump
to
the
upper
left
position
after
reaching
the
last
position
on
the
bottom
line.
The
second
function
of
the
Arrow
keys
is
to
move
the
objects
up,
down,
left,
and
right
when
an
object
is
present
on
the
screen
(see
OBJect
key),
The
cursor
will
not
be
affected
by
the
Arrow
keys
if
an
object
is
present.
If
the
cursor
has
been
deleted
and
no
object
is
present,
the
Arrow
keys
will
not
perform
any
function.
Furthermore,
the
Arrow
keys
will
not
function
if
the
screen
has
been
BLANKed.
AUTO
CENTER
(Special
Function
Key
A):
Auto
Center
will
enable
an
operator
to
center
one
line
ata
time
or
an
entire
page.
The
cursor
must
be
present.
Line
Center
-
Put
the
cursor
on
the
line
to
be
centered;
press
the
A
function
key
on
the
rightside
of
the
keyboard.
The
line
will
automatically
center.
Page
Center
-
Cursor
can
be
anywhere
on
the
screen.
Hold
down
the
SHIFT
key
and
press
the
A
func-
tion
key
on
the
rightside
of
the
keyboard.
The
entire
page
will
automatically
be
centered.
Page 2

Immediately
after
a
line
or
page
has
been
centered,
the
cursor
will
return
to
the
upper
left
hand
corner
of
the
screen.
B (Special Function Key - B): See Special Function Key - A
BORDER/BLANK:
UnSHIFTed,
this
key
BLANKs
the
screen.
BLANKing
the
screen
causes
only
the
border
color
to
be
displayed.
If
the
border
color
is
transparent
and
you
are
in
External
Mode,
the
exter-
nal
video
color
will
appear
without
any
characters
or
objects.
The
BLANK
key
allows
you
to
display
a
page
of
titles
precisely
when
and
for
as
long
as
you
want.
The
BLANK
key
can
be
used
to
step
through
several
pages
of
titles
when
you
want
periods
where
no
titles
are
present.
When
the
SHIFT
key
is
pressed
with
the
BORDER/BLANK
key,
the
border
color
changes.
See
the
COLOR
TABLE
for
the
order
in
which
colors
appear.
The
border
color
is
also
displayed
wherever
the
transparent
color
appears
on
the
screen.
That
is
to
say
that
whenever
you
are
using
characters
with
transparent
backgrounds,
the
border
color
becomes
the
background
color.
(Most
of
your
characters
will
have
transparent
backgrounds).
This
aspect
lets
you
change
the
border
and
all
background
colors
with
one
key.
However,
you
can
only
see
the
external
video
image
when
the
transparent
border
color
is
being
used.
Also
note
that
when
the
border
color
is
established,
it
remains
in
effect
for
all
pages.
C (Special Function Key - C): See Special Function Key - A.
CHARACTER
SIZE:
Changes
characters
between
two
different
sizes.
Small
size-224
characters
or
28
columns
by
8
rows,
Large
size-112
characters
or
14
columns
by
8
rows.
Hold
down
the
CONTROL
key
and
press
the
CURSOR
key
at
the
same
time.
CLEAR:
The
Clear
key
will
clear
an
entire
page
or
line
from
the
screen
and
memory.
The
cursor
must
be
present
to
clear.
Clear
Line-
Put
the
cursor
on
the
line
to
be
cleared
and
press
the
CLEAR
key.
The
line
will
be
cleared
from
the
screen
and
memory.
The
cursor
will
return
to
the
beginning
of
the
cleared
page.
Clear
Page-
Cursor
can
be
any
place
on
the
screen.
Hold
down
the
SHIFT
key
and
press
CLEAR
key.
Page
will
be
cleared
from
the
screen
and
memory.
Cursor
will
return
to
the
beginning
of
the
page.
Asa
safety
precaution,
only
the
current
page
of
memory
is
CLEARed
and
the
CLEAR
key
will
not
function
when
the
cursor
is
not
present
or
when
the
screen
has
been
BLANKed.
CNTL (Control Key): See Special Function Key - A.
COLOR:
The
COLOR
Key
preforms
three
functions:
7
;
1.
Changes
the
color
of
each
line
of
characters
of
a
title
to
a
dufferent
color
(SHIFTed
or
unSHIFTed).
2. Changes the color of each page background.
3.
Changes
the
color
of
an
object
when
the
object
is
present
on
the
screen.
The
object
color
can
only
be
changed
when
the
object
is
present
and
conversely
you
can
not
change
the
color
of
the
cursor
when
an
object
is
present.
16
colors
are
present
for
user
programming.
The
following
table
shows
the
sequence
in
which
the
col-
ors
appear.
COLOR TABLE
1. Transparent 10. Dark Green
2.
Black
11.
Medium
Green
3. Dark Blue 12. Light Green
4.
Light
Blue
13.
Dark
Yellow
5.
Cyan
14.
Light
Yellow
6. Magenta 15. White
7.
Dark
Red
16.
High
Intesity
White
8. Medium Red
9. Light Red
Page 3

CURSOR:
The
cursor
determines
which
font
(Font-1
or
Font-2)
will
be
identified
with
a
character
and
the
color
of
a
character
when
it
is
entered.
As
indicated
earlier,
the
VET
can
only
display
one
font
until
a
Font
Cartridge
is
plugged
in.
Font
Cartridges
are
a
means
of
displaying
different
font
styles
when
us-
ing
the
format
of
8
lines
of
16
characters.
The
CURSOR
key,
unSHIFTed,
selects
the
Font-1
cursor,
then
the
Font-2
cursor,
then
deletes
the
cur-
sor.
After
powering-up
the
VET
(and
after
the
logo),
the
Font-1
cursor
is
displayed
in
the
first
character
position
on
the
screen.
When
the
CURSOR
key
is
pressed
once
(unSHIFTed),
the
Font-2
cursor
is
displayed.
Pressing
the
CURSOR
key
again
(unSHIFTed)
will
delete
the
cursor
altogether.
You
will
want
to
delete
the
cursor
when
you
are
displaying
your
titles
in
a
video
production.
When
no
cursor
is
present,
characters
can
not
be
entered
and
the
screen
can
not
be
CLEARed.
The
Font-1
cursor
is
a
solid
horizontal
line.
The
color
of
the
cursor
designates
the
color
of
characters
entered.
The
Font-2
cursor
appears
as
a
horizontal
line
with
the
middle
section
cut
out
and
lowered.
Now,
more
on
fonts.
The
VET
contains
only
one
large
font
style
internally.
So
why
is
there
a
Font-2
cursc~?
Optional
single-font
and
double-font
cartridges
can
be
plugged
into
the
expansion
port
on
the
right
side
of
the
VET.
All
font
cartridges
display
characters
in
8
lines
of
16
characters
per
line.
(Dif-
ferent
characters
sizes
can
be
displayed
with
Program
Cartridges,
not
Font
Cartridges.)
Characters
entered
using
the
Font-1
and
Font-2
cursors
will
both
be
displayed
with
the
internal
font
when
no
Font
Cartridge
is
attached.
When
a
Single-Font
cartridge
is
attached,
all
Font-1
characters
contained
in
the
page
memory
will
be
displayed
in
the
external
font.
Font-2
characters
will
continue
to
be
displayed
in
the
internal
font.
When
a
Double-Font
cartridge
is
attached,
Font-1
and
Font-2
characters
contained
in
the
page
memory
will
be
displayed
in
the
external
fonts.
Remember
that
changing
font
cartridges
does
not
effect
the
font
that
a
particular
character
is
iden--
tified
with.
The
only
way
to
change
from
one
font
to
another
is
to
reenter
the
character
using
the
other
cursor.
When
the
CURSOR
is
pressed
(SHIFTed),
the
“cap-lock"’
is
set
or
cleared.
When
set,
the
"eap-lock”
allows
alphabetic
keys
to
enter
capital
letters
without
holding
down
the
SHIFT
key.
Only
alphabetic
keys
are
affected
by
the
‘‘cap-lock”’.
z
DIRECT
PAGE
ACCESS:
Allows
the
user
to
directly
access
any
specific
page
at
any
timé.
To
perform
this
operation
you
must:
1.
Press
the
CURSOR
key
twice
(deletes
cursor).
2.
Type
in
one
or
two
digits
between
1
&
30.
An
entry
greater
than
30
is
ignored.
A
zero
causes
page
forwarding.
3.
Press
the
PAGE
key.
The
screen
displays
the
page
you
selected.
4.
Press
the
CURSOR
key
one
time
to
retrieve
cursor.
NOTE:
DIRECT
PAGE
ACCESS
works
only
when
cursor
is
deleted
from
screen.
EXT
MODE
(EXTernal
MODE):
The
EXTernal
MODE
key
puts
the
VET
in
and
out
of
External
Mode.
External
Mode
causes
the
VET
to
synchronize
(genlock)
to
an
enternal
video
signal
allowing
the
VET-
generated
image
to
be
superimposed
over
the
external
image.
The
External
Mode
will
only
function
properly
when
the
following
conditions
are
present:
1.
An
external
video
signal
is
present
at
the
camera
or
external
video
input.
2.
The
external
video
source
switch
is
set
to
the
appropriate
external
video
input.
3.
The
border
color
is
transparent.
The
external
video
image
can
only
be
viewed
when
the
border
col-
or
is
transparent.
Other
border
colors
can
be
displayed
if
a
full
color
background
is
preferred.
NUMERIC/PUNCTUATION:
These
11
keys
function
like
alphabetic
keys.
The
only
difference
is
that
the
“‘cap-lock”’
has
no
effect
on
numeric/punctuation
keys.
One
additional
aspect
needs
mentioning.
A
slash
(/)
punctuation
character
is
available
with
the
upper-case
(SHIFTed)
colon
(:)
key.
OBJ
(OBJect
Key):
There
are
four
objects
available
to
highlight
or
point
out
aspects
in
the
external
video
image:
an
arrow,
an
oval
frame,
a
square
frame,
and
an
"X".
When
the
OBJect
key
is
pressed
(un-
SHIFTed),
you
enter
the
Object
Mode
and
one
of
the
four
objects
is
displayed
on
the
screen.
Once
an
ob-
ject
is
present
on
the
screen,
you
can
select
one
of
the
other
objects
by
pressing
the
OBJect
key
Page 4

(SHIFTed)
several
times
until
the
desired
object
appears.
You
can
move
the
object
with
the
arrow
keys
and
change
the
object
color
with
the
COLOR
key
(SHIFTed
and
unSHIFTed).
Once
you
select
the
desired
object,
its
location
and
color,
you
can
exit
the
Object
Mode
by
pressing
the
OBJect
key
(unSHIFTed)
and
the
object
will
be
removed
from
the
screen.
You
will
note
that
the
object,
the
location
and
color
does
not
change
when
you
exit
and
reenter
the
Ob-
ject
Mode.
This
allows
you
to
show
the
object
at
the
exact
moment
and
for
as
long
as
you
want.
Remember
that
the
BLANK
key
will
blank
all
VET-generated
images
including
the
object.
Also
beware
of
the
transparent
object.
If
you
inadvertantly
end
up
with
a
transparent
object
(like
the
transparent
cursor),
you
may
go
crazy
before
you
figure
out
what
has
happened.
It
will
be
especially
frustrating
because
you
will
not
be
able
to
enter
characters
al
long
as
you
are
in
the
Object
Mode.
PAGE
(PAGE
Forward,
PAGE
Back):
The
PAGE
key
(unSHIFTed)
displays
the
next
page
on
the
screen.
When
page
30
is
reached
(the
last
page),
the
PAGE
Forward
key
stops
responding.
The
PAGE
key
(SHIFTed)
displays
the
previous
page.
If
you
are
on
page
one,
the
PAGE
Back
command
will
not
respond.
Both
PAGE
Forward
and
PAGE
Back
will
function
with
the
screen
BLANKed
or
unBLANKed,
in
or
out
of
Object
Mode,
and
with
the
cursor
on
or
off.
REPEATING
KEYS:
Allows
user
to
put
strings
of
identical
characters
on
the
screen
or
to
move
the
cur-
sor
around
using
the
cursor
keys.
RETURN
(Carriage
RETURN):
The
RETURN
key
(SHIFTed
or
unSHIFTed)
functions
like
a
carriage
return
key
on
a
typewriter.
That
is,
it
causes
the
cursor
to
move
down
and
to
the
beginning
of
the
next
line.
If
the
cursor
is
on
the
bottom
line
of
the
screen,
the
RETURN
key
will
cause
the
cursor
to
geo
to
the
beginning
of
the
top
line.
SHIFT:
The
two
SHIFT
keys
function
like
a
typewriter
shift
key.
They
can
be
held
down
to
enter
upper-
case
alphabetic
and
punctuation
characters.
The
SHIFT
keys
also
allow
many
of
the
other
keys
to
per-
form
two
functions.
SLOW
SCROLL:
Allows
the
user
to
slowly
advance
through
the
Page
Memory.
This
can
be
initiated
at
any
page.
To
start
slow
scroll,
you
must:
g
1.
Delete
cursor
by
pressing
the
cursor
key
twice.
5
2.
Hold
down
the
CONTROL
key
and
press
the
PAGE
key.
‘
5
The
VET
will
not
stop
scrolling
until
you
down
the
SPACE
BAR
for
a
few
seconds.
Then
the
VET
will
stop
at
the
end
of
the
next
page.
SPACE
BAR:
The
SPACE
BAR
enters
null
characters
on
the
screen
and
in
the
page
memory.
The
SPACE
BAR
is
also
used
to
remove
or
delete
unwanted
characters.
It
can
be
used
to
move
the
cursor
as
long
as
there
are
no
characters
in
the
way.
REPLACING
THE
LITHIUM
BATTERY
Does
your
VET
forget
the
titles
you
have
entered
after
you
turn
it
OFF?
The
VET
has
a
3-volt
coin-type
lithium
battery
that
is
used
by
the
page
memory
to
remember
your
titles
after
the
unit
has
been
turned
off.
This
battery
should
last
a
year
or
longer
but
will
eventually
have
to
be
replaced.
When
replacing,
use
the
following
battery
(or
equivilant):
Panasonic BR2325
You
will
need
a
small
knife
and
a
screwdriver
to
remove
the
old
battery.
Unplug
the
unit,
remove
the
3
screws
on
each
side
of
the
unit
and
lift
off
the
lid.
The
keyboard
is
attached
to
the
lid
and
connected
to
the
base
with
a
ribbon
cable.
It is
not
necessary
to
unplug
the
ribbon
cable
to
replace
the
battery.
The
battery
is
located
on
the
front
left
of
the
unit.
Using
the
knife
blade,
lift
up
the
left
end
of
the
top
bracket
of
the
battery
holder
about
1/8th
of
an
inch.
Then
with
the
knife
still
in
place,
insert
the
screwdriver
between
the
right
side
of
the
battery
and
the
battery
holder.
Twist
the
screwdriver
so
that
the
battery
begins
to
slide
out
to
the
left.
Once
over
the
lip
of
the
battery
holder,
the
battery
should
slide
out
without
much
trouble.
Page 5

The
new
battery
should
be
inserted
under
the
battery
holder
bracket
from
the
left
with
the
positive
pole
(H
facing
up.
EXPANSION
FEATURES
OF
THE
VET
The
VET
was
designed
with
expandiblity
in
mind.
The
expansion
port
located
on
the
right
side
of
the
unit
is
set
up
to
connect
to
optional
inexpensive
expansion
cartridges
and
other
devices.
(These
car-
tridges
are
similar
to
game
cartridges
on
a
video
game.)
There
are
several
types
of
expansion
products
under
development.
MFJ
ENTERPRISES,
INC.
will
announce
new
expansion
products
as
they
are
developed.
CHARACTER
FONT
CARTRIDGES
(Single
and
Double)
Character
Font
Cartridges
provide
the
ability
to
display
different
character
fonts
when
using
the
8
lines
by
16
character
format.
Your
titles
can
be
composed
using
the
internal
font
and
later
viewed
with
a
different
font.
Characters
entered
using
the
Font-1
cursor
will
automatically
be
displayed
using
the
cartridge
font
when
a
single-font
cartridge
is
attached.
Characters
entered
using
the
Font-2
cursor
will
continue
using
the
internal
font
until
a
double-font
cartridge
is
plugged
in.
PROGRAM CARTRIDGES
Program
cartridges
contain
programs
that
performs
special
operations
and
change
the
format
of
the
VET's
image.
Program
cartridges
are
necessary
to
generate
character
formats
(sizes)
other
than
8
lines
of
16
characters.
Other
features
such
as
zooming
will
also
be
possible
with
program
cartridges.
INTERFACE
CONNECTORS
The
VET
was
designed
to
interface
with
several
home
computers:
Ap-
ple
II™
(including
II+
and
Ie),
Commodore
64™
(and
128),
IBM
PC™
(and
XT),
and
Radio
Shack
Color
Computer™
(and
Color
Computer™).
Four
different
interface
connectors
are
available
to
connect
the
VET
to
one
of
the
above
computers.
Once
connected,
the
VET
becomes
a
slave
to
the
home
computer
and you
can
write
programs
to
manipulate
the
VET
image.
Connecting
the
VET
to
a
home
computer
does
not
affect
the
image
generated
by
the
home
computer,
and
it
does
not
allow
to
superimpose
the
home
computer
image
over
an
external
image.
So
what
does
interfacing
buy
you?
The
VET
by
itself
is
not
programmable.
That
is,
you
can
not
write
a
BASIC
program
to
manipulate
the
VET
image
and
store
that
program
on
tape
or
disk.
However,
by
interfacing
the
VET
to
a
home
computer,
you
obtain
programmability
and
storage
capability
(tape
or
disk).
Be
aware
that
programming
images
on
the
VET
with
one
of
the
above
home
computers
is
NOT
for
the
beginning
programmer!
Documentation
is
provided
with
each
interface
connector
anda
sample
BASIC
program
demonstrates
how
"POKE"
statements
can
manipulate
the
VET's
‘‘sprites’’
(movable
objects)
on
the
screen,
Programming
the
VET
with
a
home
computer
may
overwhelm
the
novice,
but
it
should
provide
a
tremendous
creative
outlet
for
the
experienced
programmer.
™
-
Apple
II
(I+
and
Ile),
Commodore
64
(and
128),
IBM
PC
(and
XT),
and
Color
Computer
(and
Color
Computer
2)
are
registered
trademarks.
Page 6