Star Tech Journal

Issue: 1995-July - Vol 17 Issue 5

STAR*TEcH
Journal
CD
ELECTRONIC TECHNICIANS, STJ
July 1995
a THE GAMES Biz
Michael Babin
Palisades Amusements
Las Vegas, Nevada
I SEE IT
Well, it was about 11 years ago
that I started in the amusement
business. Boy, has this business
gone through some changes -
some good, some bad.
THE WAY
One thing I would like to say to
all the new technicians starting in
this field is that, if you want a job
that will keep you up with the
latest technology, I can person-
ally guarantee you this is the field
to be in!
Following the changes has not
always been easy. It was pretty
simple when it was videos, old
vinyl record jukeboxes and pool
tables. Now it's video games that
use disc players along with com-
puter boards, jukeboxes that use
a laser instead of a needle and
some that even show a video
along with the song that is play-
ing. Not many changes with the
pool table though, thank God!
Then there is the new redemp-
tion games that employ every
type of electronics such as opto,
pneumatic, piezo, hydraulics,
and so on.
S'F4' on CD-ROM
My Dad told me to go to college
and take electronics - it's a clean
job. So, I spent four years at Okla-
homa University. I would like to
say something to my Dad, "It's
not so clean."
This is to all the Amusement
Business owners and managers.
The electronics in this field is
changing so fast that is hard for
even the best technician to keep
up with the changes. That is why
it is so important that your techs
keep up with the changes by a
tending all the technical schoo.
that are available. Star Techjour-
nal for one has had some very
good classes. (Star Tech journal is
also paying me big bucks for this
plug.Just kidding, they really do
have good technical classes.)
Every tech tip, game mod, test procedure,
Mfg change, update, upgrade, precaution, etc.
for virtually all coin-op games produced from
1979 - 1995
Every page (over 5,000!) of STAR*TECH Journal
Now available on Disc!
CD-ROM technology: "The most Economical, Fastest and most
Efficient means of Information Retrieval Available!"
See Back Cover For Details
I'm leaving this exciting field
soon, but before I go I would like
to say, thanks to Star Techjournal
and to all those techs who took
the time to share all those tough-
dog fixes that has saved me so
much time.
I know it's not going to be the
same in the next electronic tech
job I take in another field - there
won't be a Star Techjournalto help
me out each month.
Adios, amigos!
July 1995
STAR*TECH
Journal
DATA EAST SOLID
GOTTLIEB CUE
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r- STAR*TECH Journal
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Order Prepaid or COO.
Phone:
609/654-5544
Fax:
609/654-1441
Bbs:
610/251-9387
Email: startech@cyberenet.net
~
Mark Anderson
TW Gilchrist Vending
Toronto, ONT Canada
Phil Ivany
Penn Vending Company
Bensalem, Pennsylvania
PROBLEM
SUBJECT
Data East solid state flippers stay-
ing on or not always firing.
Further to my article last month
regarding Gottlieb's Cue Ball
Wizard game locking up, not
kicking out balls and double puls-
ing the ball release coil.
SYMPTOM
Flipper stays on intermittently
after button is released.
UPDATE
CAUSE
The clamping diode may be
open or broken. This causes the
Back-EMF to hold the holding
SCR on. This can happen in any
circuit using an SCR to drive a
coil. (I remember this from the
days I used to work at Xerox on
copiers.) SCR's are tough and
reliable but tricky to work with
sometimes.
SYMPTOM
Flipper not always firing.
t\NY
leaiNIQ\L
f'®oBlfLM
aN Be oVe'®wMe
cr1veN eNoVcrH
After a couple of weeks testing, I
have found that the capacitor will
break down and cause the same
problem. Since them, I've found
the proper value of the varistor -
75 volts - you can use a higher
rated value.
CAUSE
Bad EOS (End-of-Stroke) switch.
This switch is not required unless
the flipper is constantly fired rap-
idly for long periods of time. The
two terminals can be connected
together. Keep extra coils in stock
- just in case.
lfMe
t\ND Mo NeY.
My previous article stated that
adding a 2.2 uf capacitor across
the contacts on the (B- Relay)
motor control relay, to remove
arcing across the contacts which
causes double pulsing on the ball
release coil.
~il~Y:n,fel:J
Journal
I strongly recommend checking
the varistors on all Gottlieb
games to prevent any intermit-
tent problems. Look here first.
0
,~,:a, =e-,:J
Journal

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