Star Tech Journal

Issue: 1981-May - Vol 3 Issue 3

S*TJ
MAY 1981
4
EXIDY COLOR
There is a possibility of error on the proper
insertion of the color board ribbon cable between
the color board and the logic board on "TARG"
and "SPECTAR". Two different cables have been
used to connect the color and logic boards to-
gether. The only difference is the numbering
system used on the pin-outs, otherwise they are
identical. The easiest way to properly connect the
BOARD RIBBON CABLES 0
ribbon cables is to ignore the numbers and just
physically make sure the cables leave the con-
nectors and boards in right direction. On the logic
board the ribbon cable exits the connector aimed
towards the nearest edge of the board.
On the color board, the ribbon cable exits
the connector aimed towards the edge farthest
from the socket. See illustration.
V
If you have any questions concerning this information contact Exidy Customer Service at
(800) 538-8402 or (408) 734-9410.
M
?,0?,
URPHY'Sv~
Dimensions()
will
always
be
expressed
in
the
least
usable
terms.
Velocity,
for
example,
will
be
expressed
in
furlongs
per
fortnight.
OPERATORS!
MECHANICS!
Are you searching for a painless way to upgrade your ability to repair the
Electronic games you operate ... the games you depend on for your
livelihood?
SAN DIEGO ARCADE SCHOOL ...
offers 46 hours of comprehensive, practical training in electronic amuse-
ment repair for mechanics and operators .
YOU DON'T NEED AN OSCILLOSCOPE ...
to be successful at repairing Solid-State games. The course stresses the
efficient use of test equipment like the Logic Probe and Digital Multimeter;
relatively inexpensive equipment that operators and mechanics can easily
afford .
IS THE COURSE EXPENSIVE?
Not really. The tuition fee of $350 .00 includes over $75 .00 worth of
textbooks, databooks, and other materials!
San Diego Arcade School will not teach you how to repair a jukebox,
electromechanical pinball or vendina machine. You will learn about diodes,
transistors, power supplies, electronic pinball, video games (including a
special session on video games that use the X-Y monitor system) , cross
referencing semiconductor replacement parts , using a logic probe, and
more.
San Diego Arcade School• 6123 El Cajon Blvd.
San Diego, California 92115 • (714) 286-0172
S*T J
MAY 1981
5
M I D W A Y
OLDER
ROWE/AMI
Phonos
''PAC-MAN''
JOYSTICK
TO CONTEMPORARY
PRICES
MODIFICATION
by Craig Miller
by Todd Erickson
□□□□□□□□□□□□□□□
000000000000000
The adjustable credit stop coil on
mechanical credit units cannot be
set for 1 credit. Since you are elim-
inating dime plays you can make
some wiring changes. For the sake
of simplicity and bill acceptor com-
patibility, you should make these
changes at the coin switch plug to
main harness.
Remove the male pins from positions
6, 7, and 8. Insert the pin with a pair
of slate wires into position 6. Insert
the pin with the blue wire into
position 7 and the remaining pin
with the slate-white wire into posi-
tion 8. Adjust the slug rejector to
reject dimes and nickels as shown
on the "Price of Play Procedure" in
manual.
Refer to "Price of Play Procedure"
and substitute quarter wherever it
says dime and half dollar wherever
it says quarter. This chart will show
you how to set price selector switches
and credit unit screws for your choice
of pricing.
If you have a bill acceptor, set the
number of pulses from the pulse
chopper. Remember that each pulse
now equals one credit.
Midway "Pac-Man" has been one of
the finest games produced lately.
As with any game, it has a few minor
defects. The worst one is that in
rough locations people will push
down on the joystick and bend the
points. My first cure was to replace
the blades with stiffer ones which
cured the problem for me. Midway
has come up with another cure that
will be used on later production
games. The nylon sleeve (0921-00701-
0000) that has the "E" clip on it has
been replaced with one that has a
shoulder on it. This will help protect
the "E" clip. A nylon washer (0017-
00104-0111) has been added be-
tween the "E" clip and the bracket
so that the joystick won't go down as
far. The wear plate (0932-00905-000)
should be inspected for wear once in
a while. (Note that this part has been
improved and has a new number.)
I recommend stocking this item. If it
is worn or damaged, the shouldered
sleeve will wear, causing problems
with point adjustments.
Note: Midway has incorporated this
change into their games being manufac-
tured now.

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