Star Tech Journal

Issue: 1981-December - Vol 3 Issue 10

S*TJ DECEMBER 1981 11
TWO COIN/1 PLAY CIRCUIT REDESIGN
INPUT
OUTPUT
R.SW.
2.
,------------ ---7
I.C.
(7473)
:
I
01
n - - - - - ----<
1
I
I
I
CLK
Q
Q 1---..-vv1~c...,
CLK
C
CLR
CLR
RELAY
I
I
L ____________ _____ l
NC
C4
D---,----------------VVV\J'l--------~~J
NOT
USED
1
:
C3.
I _____________ - --1
R2.
I_
+5V
FROM
,,1~M~i~;m.
PARTS LIST
C1,C3,-0.1 Mfd. C2-1.0Mfd. C4-100 Mfd./16V.
R1 - 4.7 K!l, R2 - 10K.n...
01 - 2N3055 or EQV.
RELAY - D.P.D.T.5V. MINIATURE (RADIO SHACK NO. 275-215 OR EQV.)
WIRING DIAGRAMS
For games with 1 coin chute
and single pole single throw
coin switch. (two wires)
COIN
SWITCH
NO
"A"
2COINS
1 PLAY
UNIT
+5V
C
GND
NC
FIG.1
For games with 1 coin chute
and single pole double throw
coin switch. (three wires)
COIN
SWITCH
TO
GAME
BOARD
NOT USED
NO
NO
"A"
C
NOT USED
REMOVE
WIRE AND
MOVETO'B'
2COINS
1 PLAY
UNIT
TO
C
~---GAME
BOARD
NC
GND
"B"
+5V
FIG.2
FOR ALL GAMES WITH TWO COIN CHUTES
COIN SW
NO.1
COIN SW
NO.2
"A"
2COINS
1 PLAY
UNIT
GND
FIG.3
NO
TO
GAME
BOARD
C
NC
"B"
("B" IF USED CONNECT AS-IN FIG. 2)
S*TJ DECEMBER 1981 12
MICRO-SYSTEMS
393 EAST 198 STREET, BRONX, NY 10458
212-220-3644
"All Kits Are Unconditionally Guaranteed
For 30 Days After Shipment"
SUPER MISSILE ATTACK KIT
This unconditionally guaranteed "software enhancement" kit will
transform your Missile Command from a "filler" into a "top-of-the-
line killer".
Easy installation
New colors and sounds
More and faster missiles
Bonus level increases to 1 OX
Airplane now drops smart missiles
All new UFO can change directions, and shoots lasers at
existing cities.
SUPER MISSILE ATTACK - $295.00
(Qty. discounts available)
*
*
*
*
*
*
SUPER MOONCRESTA KIT
This new memory kit will convert your original "Mooncresta" to the
new hit "SUPER MOONCRESTA", a much faster and superior
game. Complete, easy installation instructions.
SUPER MOONCRESTA KIT - $150.00
SUPER EARTH INVASION KIT
Convert your regular or deluxe "Space Invaders" with th is exciting
new program designed to revitalize play interest and collections.
SUPER EARTH INVASION KIT - $100.00
EAGLE UPDATE KIT
This inexpensive plug-in memory chip will make the docking
portion of the game very difficult and create a new challenge for
your players.
EAGLE UPDATE KIT - $20.00
SUPER GAWIANS KIT - $90.00
ASTEROIDS UPDATE KIT - 02 version - $40.00
01 version - $75.00
STAR CASTLE SPEED-UP KIT - New Memory Chips,
Pl ug-1 n Installation
$55.00 per KIT
POP-MAN KIT
* Update your Pac-Man with this new disappearing maze featuring
POPEYE and six WARP TUNNELS.
* Easy plug-in installation.
* Revitalize player interest and increase collections.
POP-MAN KIT W/NEW MAZE - 6 Chip Set - SPECIAL - $140.00
POP-MAN KIT W/O POPEYE - 4 Chip Set - $95.00
Micro-Systems has many other conversion kits and a full line of
IC's, power supplies and components. Call for prices and info or
send your order today.
COMING SOON ...
Convert your SCRAMBLE to SUPER-COBRA!
Call for info!
SPECIAL PRIORITY WILL BE GIVEN TO PRE-PAID ORDERS.
CENTURI/
ALLIED LEISURE
"CLAY CHAMP"
XENON
TUBE
NOTES
*
*
BY TODD ERICKSON
SUMMIT AMUSEMENT
ST. PAUL, MN
This is, without a doubt, one of the finest
rifles to be produced. As with most rifles,
it has had its share of problems. The early
Star* Tech Journal article on this game
helped clear up many problems with the
game. The only significant problem re-
maining thus far is the Xenon tube in the
gun. The tube has three wire leads coming
from it to the rifle P.C.B. The shock of
the gun is transferred to the leads, which
breaks the Xenon tube. To cure the prob-
lem, I mounted the tube with pigtail
wire. This ended the problem for me.
Many of the Xenon tubes supplied by
Centuri have the trigger too high in the
tube, which creates a shadow. They were
very uncooperative when confronted with
this, stating that they never made the gun.
I don't think we need this kind of attitude
from a manufacturer. A minor problem
that should be mentioned with the game
is in the area of hearing the Rowe motor
in the speaker at times. I suggest changing
the motor if this is bothersome.
and
. the
.
winner zs ...
Jim Berkhoff of Stand Pat Vending in
Amityville, NY is the winner of our
"Unusual Service Incident" contest.
Jim will receive (compliments of PAE
Test Division, Sunnyvale, CA) a $249.95
logic comparator "The BUGTRAP".
Many thanks to all who participated.
I was working on an electro-mechani-
cal pin game in a bar in Greenwich
Village's west side for some time. The
complaint was, it wasn't scoring prop-
erly and it would cut off in the middle
of the game. Each time I went there it
seemed to be in proper order. I would
check the hold contacts and the motor
cam switches just to be sure before I left.
The next day the call came in again,
and again no problem was found. That
same night I was called back to the loca-
tion and as I approached the machine,
it looked somehow different. When I
opened it up, the transformer was
making a strange buzzing sound and
when I coined it up, the operation
was very sluggish.
In the daytime, the location 's light
dimmer (which was wired into the out-
let the machine was plugged into!) was
turned up to full brightness. At night
the dimmer was turned down for
atmosphere and unfortunately, also
being turned down was the line voltage
for the pin game!

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