Star Tech Journal

Issue: 1981-October - Vol 3 Issue 8

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
SEEBURG
Price-Setting Instructions (Part 2)
Now set the dime level. Since a quarter gives 2 steps, a dime
can not be set to a corresponding number of even steps. Nor
can the nickel.
BY RON NICHOLSON
Black Box Machines
SPECIFIC PRICE SETTING EXAMPLES
FIRST determine the relative values of singles and albums.
Choices are limited to: 1, 2, 3, or 6
If albums are to be worth two singles, then albums may be set
to level 6 and singles set to level 3. The albums may be set to
level 2 with singles set to level 1 to achieve the same ratio.
In general, the higher numbers are more desirable because
more flexibility is obtained that way. However, the credit unit
will go up to only 31 steps, so lower levels must be used when
vending at lower prices with dollar bill validators.
SECOND determine price of play. In the first example it will
be:
2 plays ..... 25¢
5 plays ..... 50¢
10 plays .... $1. in coin (there is no bonus at the $1 level
so $1 will always buy exactly
twice as much as 50¢)
12 plays ..... $1. bill (this is set independently, so a
bonus is possible if a bill is used)
Let's assume that the single level is 1 step and album level is 2.
THIRD set the coin switch settings from HALF DOLLARS
down to NICKELS.
If each play is one step (level 1 for singles), then a half dollar
must be worth 5 steps.
Using diodes, jump the half dollar terminals ( the ones marked
21) to the proper combination of add terminals ( terminals 11
to 15).
To step 5 steps on a half dollar, connect a diode to one of the
21 terminals and terminal 13 (add 4 steps). Then connect a
second diode to another of the 21 terminals and terminal 15
( add I step). This will cause a total of 5 steps to be added
when a half dollar is deposited.
Note that the proper terminals are grouped opposite one
another in clusters.
Using the same procedure,jump terminal 18 ( quarter switch)
to terminal 14 (add 2 steps). This sets the quarter switch.
Now set the bonus for 50¢ (bonus 2) so that two quarters will
equal one half dollar.
If one quarter gives two steps, then two quarters will give 4
steps. But a half dollar is set to give 5 steps. So the bonus
needed for two quarters to raise the credit to a half dollar level
is 1 extra step.
Connect a diode jumper from terminal 9 (bonus 2) to terminal
15 (add I).
So there should be no diodes connecting any 22 or 23
terminals to any other terminals.
Now, since no steps are made on nickels and dimes, when 25
cents is deposited in mixed coins, no steps will be added. But
a quarter will give 2 steps. So the 25¢ bonus needed to raise
zero to 2 is 2 steps.
Connect a diode from terminal 16 (bonus 1) to terminal 14
(add 2).
Now all coin switch settings are made. Note that since we are
using the 50¢ level bonus (bonus 2), there should be no
jumper between terminals 8 and 10.
FOURTH if you have not already done so, connect a solid
wire ( not diode) from terminal 19 ( single level) to terminal 7
(level 1 ).
Connect a second wire from terminal 17 (album level) to
terminal 6 (lev-2).
FIFTH connect diodes between terminals 24 ( dollar bill)
and terminals 12 ( add 8 steps) and terminal 13 ( add 4 steps).
This sets dollar bills to 12 steps.
FINALLY set the debit values. If each single is worth one
step, then one step should be subtracted for each single
played.
The credit unit can only add. But like a pingame score reel, it
can be 'turned over'. Since it only goes up to 31 steps, adding
31 is the same as adding nothing. Adding 30 is the same as
subtracting 1.
This is similar to adding 999 on a three reel pingame. If your
score is 56 and you add 999, your score will be 55.
Anyway, to subtract credit, connect one of the terminals 3
(single debit) to every add terminal EXCEPT the ones
corresponding to the value to be subtracted.
TERMINAL NUMBER - to -
3 ( single debit) . . . . . . . . . . .
3
.....................
3
. . . . . . . . . . . . . . . . . . . . .
3
. . . . . . . . . . . . . . . . . . . . .
TERMINAL NUMBER
11 ( add 16 steps)
12 (add 8 steps)
13 (add 4 steps)
14 (add 2 steps)
Do notjump terminal 3 to terminal 15. Note that the only add
terminal NOT connected is 15 (add 1 step) and the result is
that one step is subtracted.
To set the debit for albums to -2, using diodes, jump
terminals number 2 (album debit) to all add terminals
EXCEPT terminal 14 (add -2).
The result is that two credit steps will be subtracted when an
album is selected.
The pricing board is now completed.
Other pricing schemes are set similarly.
NEXT MONTH: CREDIT UNIT PRICING BOARD SETTINGS
S*TJ OCTOBER 1981 12

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