Star Tech Journal

Issue: 1981-October - Vol 3 Issue 8

DALLA/
/AO
DIEGO
A Single Week That Can Change
The
Direction of Your Career
For Years To Com.e.
How can you benefit from the Arcade School?

You will receive 46 hours of comprehensive, practical training in electronic amuse-
ment repair.

You will learn about basic electronic theory, semiconductors (diodes, transistors,
integrated circuits, etc.), power supplies, video game monitors, electronic pinball
systems, video game systems, and more.

You will learn to read an electronic schematic!!

You will have ample opportunity to ask questions about your own specific problems
and concerns.

You will enjoy the informal and relaxed atmosphere of the classes.

Hands on experience with typical repair
experience in solid-state amusement repair.

You will learn to repair electronic games without the need for expensive test equip-
ment. The course stresses the use of digital multimeter and logic probe; relatively
inexpensive equipment that most operators and mechanics can easily afford.
situations gives students practical
6123 El Cajon Blvd.
San Diego, California 92115
For Information and Reservations
CALL
(714) 286-0172
S•TJ OCTOBER 1981 10
BALLY
Rectifier
PHILADELPHIA
VENDING
SERVICE
Board Fuse Change
Effective with " Medusa," the use of a 6
amp, 32 volt, 3 ag fuse , Bally part no. E-
133-6 should replace the 5 amp, 32 volt,
3 ag fuse in position F4 on your rectifier
boards in all Bally 4 Flipper Electronic
Pinball Games.
215-698-2738
********
• Ace Locks Rekeyed $1.00·
• Ace Keys
$1.00
• American H-10 Padlocks
As Low As $ 7 .00 each
-ATARI
********
We carry a complete line of
American padlocks. We also
carry all of the game speed-
up kits at low prices.
For further information please
call or write:
Philadelphia
Vending
Service
881 O Dewees St.
Phila., PA 19152
********
"CentitI?eldSe~~I< Hazard
Poten ,a
Newport
MODEL 125 ,
,,
. U ri ht " Centipede,
Subject Game.
p o{s6
serial #00001 thru .
• t wiring of
mcorrec
ly and
P ro blem: . Possible
between power supp
harness wires
fluorescent light fixture . . Check wire
. of Problem.
Identification
P4 at power supply to
colors of connector . s are as follows:
• connection
ensure wB1lre k (Pin l identified with point
Pin 1: ac
on connector)
Strong, Reliable Joys1icka
Made in the U .S.A . for the needs of the American
Market. Will replace joysticks in imported and domestic
machines. Interchangeable gateplate for two, four or
eight positions. No troublesome microswftches, uses
standard leafswitches. All parts are easily replaceable
in the field. Engineered and built by experteflced crafts•
men. For spare pans see parts list. FAST SERVICE!
NEW LOWER PflUCU.
A- fOfl OA-S AND GAME fJART&.
NEWPORT MACHINE DESIGN
P.O. Bo, 418. Bishop. CA 93514 U.S.A. 17141 873-4431
Pin 2: Green
Pin 3: White
make
. not wired as stated-
If connector 1s
corrections.
STERN
STERN
I Mod
"Super Cobra" Pwr Supp Y
" Super C o b ra
,, (PS 1200 Power Supply)
Problem:
• to the cross h ate h t e st
Screen goes m
pattern during game play.
CA USE: 15 000 MFD Filter Capacitor
The tecate ,
·11 t"
S V line to start osc1 a mg.
(C8) causes •
REMEDY:
Change value of capacitor 4C; :F~o:~
Supply from 0.1 MF~ to •
observe proper polanty.
"Super Cobra" Logic System ID
PROM's
Programmed
and Sold
(2516,
2716-2532,
2732-Bipolars)
Software
Development
*
Program
Automation, Inc.
36 Koster Blvd. -2B
Edison, NJ 0883 7
201/549-7363
Because of the supply problem to pro-
duction, we are having to use two separate
logic systems for " SuperCobra". Should
you have a problem in the field, in order to
supply you with the proper parts, we will
have to know the following information:
1. Are the boards manufactured by
A. Komani
B. Stem-URL
2. Does the machine have a black box, if
so, which type of connector is on the box.
A. Is it a 3¾" long edge connector or
B. Is it a 2¾" long strain relief
connector
The second and most current logic system
is manufactured by Stern-URL. This sys-
tem does not use a black box because we
have incorporated that circuit into the
main logic system. The program in this
system is completely different and CAN
NOT be interchanged with the program
that uses the black box.
The program on the system which uses
the black box is designated by XO. The
program on the system that doesn't use a
black box is designated by RA.
Caution: The two programs cannot be
interchanged.
S*TJ OCTOBER 1981 11

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