International Arcade Museum Library

***** DEVELOPMENT & TESTING SITE (development) *****

Star Tech Journal

Issue: 1983-September - Vol 5 Issue 7 - Page 8

PDF File Only

STAR*TECH JOURNAL/SEPTEMBER 1983
8
PRICE
CONVERSION
BREAKTHROUGH!
The "Bear" Facts continued.
The only system fix-it information that I have for you this month concerns the Bally Midway Baby
Pac-Man pinball/video game. The symptoms are as follows:
When turned on, the unit powers up and the broken music that is normally heard does actuate, but
the monitor will not power up and no logic or AC is readily available or noticeable. The vidiot board
LED will flash 9 times and have a space of time after that when no flash is seen, then flash a 10th time.
But the monitor at this time will not come on and the game will not play. At first, it appears to be a logic
board problem, but in all probability it is one of the three fuses mounted underneath the playfield
( close to the control panel). Robby Robbins of Progressive Game Distributors in San Diego found this
problem after troubleshooting it for two hours. If he took two hours, I would have taken three. I hope
this will cut your troubleshooting time down some with this unit.
The rest of this article will be dedicated to IO problems for the future tech.
FOR ROWE
CIGARETTE
'MACHINES
2)
I= .754mA or 754uA E =?
R~
3)
RI
~ -- - - , ~
7tl.
=..
4)
l'i"vd c.
R2.
Rr=?
5)
Ir=?
)00 ..(L
IIS"voc
IIS"VQ(
R3
6)
$.______"
!50_____.~:]
Rr=?
Cr=?
8)
• Same mechanical
dependability using your
present totalizer. No
electronic components.
• Send us your totalizer - we
will convert it ($5.00 service
charge).
PRICE
REDUCED
$29. 95 (In Lots of 10)
1 to 9 Units - $34.95 each
All orders shipped UPS/COD.
TELEPHONE:
516-928-6868
COIN UP-DATE
INDUSTRIES, INC.
14 Hulse Road
E. Setauket, NY 11733
l
T
• Will vend up to $1 .75 in
increments of 5¢.
• 4-minute installation on
location OR
'" t ± ,,.:J
Ir=?
7)
• Accepts any combination of
nickels, dimes and quarters.
1.2,u,F'
Cr=?
10)
Rr=?
Ir=?
Remember that these circuits may look different, but they are all series, parallel or series/parallel and
you must, as a technician, be able to redraw circuits if you do not understand them totally into an
easier-to-understand (for you!) form.
The answers are at the end of the article, but first here's Pe!er Gurko with this month's technical
information from Kiddie Rides USA.
SOLID-STATE SOUND REPLACES
TAPE PLAYERS IN KIDDIE RIDES
By Peter Gurko, Kiddie Rides U.S.A., Davenport, IA
This article is devoted to those countless technicians who call in for service on their cassette and S-
track tape players. For those who constantly call in for replacement tapes, or advice on how to splice
crinkled and twisted yards of former motorcycle, boat, or car sound.
For those wishing to update their rides to solid-state sound, there is now a replacement board
easily installed and highly modifiable to the specific sound you prefer.
If your present sound system operates under 12-1 Svac, simply solder your power supply leads and
speaker leads to the positions on the board which are marked on the accompanying diagram. If your
sound system is powered by 11 0vac, a transformer is supplied with the sound board for the maximum
in expeditious installation.
Each board is mounted on a sheetof3½" x 9¾" CDX plywood to enable the operator to mount
the sound board anywhere under the ride desired.
The sound board utilizes a CMOS phase-locked loop and a 555 timer to produce a gear shifting
sound If your ride has a throttle cable, the addition of a spring and switch at the end of this cable and
minor modification of capacitors and resistors at the board will produce an idle sound when the
throttle is in the 0° position and acceleration sound when moved forward. The board can also be
modified to produce a single pulse sound when actuated by a pushbutton.
At present under development is a universal sound board for carousels, ferris wheels, and any
other ride where middle-of-the-road music of a general theme is desired.
If you have any questions about these boards or any problems with your Kiddie Rides, call Kiddie
Rides U.S.A. at 800-553-8000.
Continued on next page.

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