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Installation
Tetris
4,
Try using
the
existing
connectors.
Cut
the
original
wire approximately 3 inches
from,
the
original
con-
nector,.
Strip off
about
one-half inch of the
insula-
tion.
5.
Slip
the shrink
tubing over
the
wire
you
just
stripped
6,
Solder
the
new
wire
designated, for that position to
the
original
wire
you
just
stripped.
WARNING
Do
not simply
tie
the wires
together:
This
can cause nagging
intermittent
problems
through loose connections,
oxidation,
or
both
,
or
a
fire
in
the
electrical
system
7.
Slide
shrink tubing
down
over
the
soldered
wire.
Melt shrink tubing
around
all
uninsulated
in-line
wire connections.
Do
not use
electrical,
tape,
It
can
unravel
and
cause
problems
with
the
electrical sys-
tem,
8.
Use
wire
tie
wraps and
secure
the cable
to
the cabi-
net
where
it
seems
necessary.
Connecting
Power
Wires
1,
Connect
the wires
that
are
designated
for
your
power
supply.
You
will
need
a.
supply
of
+5V
and
+12V,
The
new game may
not
require
all
of
the
voltages
used
in
the
original
game.
Tie
off
any
un-
used
wires.
2,
You
will
notice
that
there
is
more
than
one
wire
for
each
voltage.
You
must double
up some
wires
as
called
out
in
the footnotes
of Table
1-2.
This
will
help
to
ensure
that
you do
not overload
the
edge
connector an
d
cause
it
to
bum.
Connecting Video
Display
Wires
Connect
the
wires designated
for
the
RED,
GREEN,
and
BLUE
video
guns
along with
the
sync
and ground
wires.
NOTE
JAMMA
provides only negative
compos-
ite
sync
.
Most
video
displays
accept neg-
ative
composite
or
separate
positive
sync
,
If
your
video display requires
sepa-
rate positive
sync
,
see
page
3-
1
of
this
manual
or
call
TELEHELP
at Atari
Games
Customer
Service
.
Connecting Speaker Wires
Find
the
two
wires
(twisted
pair) that
are
designated
for
the
speaker
and
hook them
up.
Connecting
Coin,
Door
Wires
1,
Connect
the
designated wires
to
the
coin,
switches
and
meter.
2,
Connect
the
door lamps
to
the appropriate voltage
on
the
power
supply.
Some
games
have
separate
power
supply outputs
for
the
coin
door
lamps.
3,
Be
sure
to
clean
and
lubricate
the
old coin
mecha-
nisms..
Grounding
the Cabinet
Find
the
ground
lead (green) of the
115V
input
power
line,
Connect
this
lead
in
daisy-chain fashion
to
the
coin
door, control
panel
video
display,
and
power
supply. This
is
a
safety
requirement for
the
players
protection
.
This
AC
ground must be
of
#18
AWG
wire
or
larger.
Cabinet
System Checkout
Do
the following before
plugging
in
the
Game
PCB;
1.
Apply
power
to
the
game, and check
for the
fol-
lowing
voltages.
If
any
voltage
Is
incorrect.,
remove
power
and
correct the
problem
before
proceeding
any
further.
#
+5
volts
on
pins
3> 4,
€,
and
D
of the 56-pin
PCB
connector
*
-M2
volts
on
pins
F and 6
of the 56-pin
PCB
con-
nector
2..
Check
that
the display has
power by
observing
the
glow
of the filament
inside the
neck
of
the picture
tube.
3.
Check
that
the
attraction
shield
lamp
has power.
4.
Check
that
the
system
ON/OFF
switch functions
properly.
Now
turn
off the
power
to
the
game..
Tetris Prktted-Ciretilt
Board
Installation
L
Find
the
Tetris
Game
PCB
(part no.
A044809-01)
and
install,
it
inside the
cabinet:..
Use
the
nylon
standoffs
to
secure
the
PCB
through
its
mounting
feet,
2.
Connect
the 56-pin
connector
to
the
PCB
with
the
label
on
the
same
side as the
components on
the
PCB,
The
connector
is
keyed
for
proper
orientation.
Table
1
2
shows
the
JAMMA
pin assignments,
3.
Apply
power
to
the
game.
Check
that
the
Game
PCB
functions.
If
a
video
picture
is
not
present,
re-
fer to
Chapter
3,
Troubleshooting
,
for
suggestions
on what
to
do.
Testing After
Power-Up
m,
The
Tetris
kit tests itself
and
provides
visual
and
audi-
ble indications of the
condition of the
game
circuitry
and
controls.
Self-test
information
is
displayed
on
the
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