Star Tech Journal

Issue: 1981-October - Vol 3 Issue 8

A
V
COJNCO
Door Notes A
V
BY TODD ERICKSON
◊◊◊◊◊◊
The Coinco door, first
introduced by Atari, has
been a continued source
of irritation for me.
Cinematronics, Centuri,
Taito, Williams and
Gremlin are now or will
soon be using this door.
The most serious prob-
lem is the fact that the
coin ramp is not steep
enough. The door will
work fine when it is new,
but even a small amount
of dirt on the ramp will
cause the coin to hang up.
Subsequent coins will
completely jam the ramp.
This condition will now
lead to the next two prob-
lems. The door may get
kicked. (I know very few
people kick coin doors,
but it does happen in the
real world!) The coin
return cover may break or
fly off altogether. By bend-
ing the small bar in the
coin return area, the gam
may now be played for 1 ¢
instead of 25 ¢. At the
normal 50/50 split, it
becomes difficult to pay
for the game at ½¢/play.
Secondly, when the door
shell is bent, the coin inlet
housings are not parallel
to the inlet chute, causing
the button to stay in. Dirt
in the coin inlet housing
may cause the button to
stay in, also. By simply
cleaning the inside of the
housing, this will cure it.
If the coin entry button
stays in too long, the coin
return lever on the inner
panel and the rejector
operating lever may have
to be replaced. They will
lose their tension. The
coin return lever originally
had been riveted to the
inner panel sub assembly.
There has been a replace-
ment that will snap in
place.
As you can see, one
problem can cause
another with this door. It
may sound like this is a
marginal door, but it isn't.
It happens to be one of
the best doors on the
market but was never
debugged. We all have to
remember, in this industry
the manufacturers have to
get the games out while
they are hot, with or with-
out problems. I am sure
the tremendous demand
for Atari "Asteroids" has
created a few problems
for Coinco when they
were just beginning pro-
duction of the door. To
make a long story short,
there is now a new steeper
ramp for the door. Prior
to this, I lowered the front
casters to tip the game
back. The problem with
the weak coin return lever
has been solved with a
metal return spring for the
button (903494 ). These
can be obtained from
Coinco, free of charge.
The coin return bezel
which is now plastic will
become available in metal
shortly. The remaining
problem with the operating
lever on the rejector has
not been taken care of yet.
By using the new metal
return spring for the
button, I don't anticipate
any problems with the
rejector. The problem will
arise when placing the
5 300 rejector in other
doors.
Coinco now has a toll
free number, 1-800-325-
2646 to take care of any
questions that might come
up concerning their equip-
ment. I am pleased to see
them add this service
number. It is a tremendous
help, due to the large
amount of equipment the
company produces.
S*TJ OCTOBER 1981 7
2nd Annual S*T J Reader Survey
Ratings are based on the '/fumber of
manufacturer listings as compared
to the total S*T J surveys returned.
(e.g. in the first category 85% of all
the surveys returned listed Bally as
one of the easiest pins to service,
while 51 % of those listed Williams
as one of the most difficult.)
The comments are selected from re-
turned surveys and do not necessarily
reflect industry service trends. They
are independent opinions.
I. Which amusement machines are
easiest/difficult to service?
PINS
Easiest
Bally
85%
Stem
28%
Williams
20%
Gottlieb
10%
* Gottlieb doesn't have enough info
in service book: Chillicothe, OH
* Gottlieb game information suggests
*
*
*
*
*
VIDEO
Easiest
Difficult
Williams
Gottlieb
Atari
Game Plan
Stem
Bally
51%
47%
9%
6%
6%
2%
Comments:
(Pro)
Bally has more complete game
schematics: Clarksville, WV
If everyone was set up with man-
uals and interchangeability that
Bally has, many service people
would have time to clean play-
fields: Honolulu, HI
Bally "F.O." manuals and Wil-
liams circuit separation ease trou-
bleshooting and repair problems:
Lubbock, TX
Williams' in depth self-test feature
very desirable: Long Beach, CA
Stem sections and labels their
boards better: Louisville, KY
Williams' are easiest except for
their drop targets: Sioux City, IA
Bally has the best support, docu-
mentation and 800 number service:
North Suburban, IL
Bally has less plugs to give troubles:
Pierre, SD
*
*
*
*
*
*
*
*
(Con)
Gottlieb has too many "Special"
parts used on only one game-one
time: St. Louis, MO
Williams' boards take forever to
remove: Elizabeth, NJ
*
*
S*TJ OCTOBER 1981 8
that any problem harder to fix than
a light bulb should be done by the
distributor: Marina Del Rey, CA
Williams goes out of their way to
make the game unnecessarily com-
plex: Bismark, ND
Gottlieb electronics are hard to
understand: Reno, NV
Williams' problems are usually few
but complicated: Louisville, KY
Gottlieb's self-test isn't as good as
the others: Phoenix, AZ
Components are not marked on
Williams' boa,rds: Burns, TN
Atari
Midway
Williams
Stem
Cinematronics
Gremlin/Sega
Universal
62%
60%
13%
11%
4%
3%
1%
Difficult
Gremlin/Sega
Cinematronics
Stem
Taito
Atari
Midway
Exidy
Williams
Centuri
Universal
29%
19%
16%
14%
11%
9%
8%
6%
5%
3%
* Midway has good back-up service
manuals: Steering, VT
(Con)
I wish Gremlin/Sega would use
standard coin acceptors: Effing-
ham, IL
Gremlin/Sega and foreign games
have a shortage of info and de-
cipherable prints: Lubbock, TX
Cinematronics monitor system
needs changing. Direct coupling
takes out too many components
when one fails: Louisville, KY
Taito doesn't supply enough serv-
ice info: Long Beach, CA
Color monitors ( all mfg's) - Better
service manuals are badly needed.
Card/cage games should have an
extender card supplied: Detroit,
MI
Gremlin/Sega - connectors on
boards should be color-coded:
Westmont, NJ
Stem "Berzerk" joystick needs to
be improved: Utica, NY
Atari's control panel is hard to
remove: Burns, TN
Cinematronics "Star Castle" needs
easier access to monitor front for
cleaning: Hunt, NY
*
*
*
*
*
*
*
*
*
MUSIC
Easiest
Rowe/AMI
Rock-Ola
Seeburg
NSM
Wurlitzer
32%
26%
12%
6%
1%
Difficult
Comments:
(Pro)
Atari includes the most service
info: Los Angeles, CA
Midway and Atari are tops with
their Rom/Ram tests and good
schematics: Dorval, Quebec
Atari is the most trouble-free:
Greensburg, PA
I think Williams has a great video
in "Defender"-very dependable:
Long Beach, CA
Atari and Midway have simple
designs and many parts are inter-
changeable: College Station, PA
I must credit Midway for supplying
complete schematics: Marina Del
Ray, CA
Atari, Midway, Williams-Excel-
lent test modes: Elizabeth, NJ
The frontdooron Stem's "Berzerk"
is great for.service: Pittsburgh, PA
Seeburg
Rowe/AMI
Wurlitzer
Rock-Ola
NSM
*
*
*
*
*
*
*
*
31%
10%
8%
5%
2%
Comments:
(Pro)
Rowe/ AMI has the best service
manuals and the best method of
locating a bad module: Pierre, SD
Rowe parts are easiest to repair
and change: Valentine, IL
Rock-Ola jukes are very depend-
able: Los Angeles, CA
Rowe/ AMI is easiest to service,
also it is American made: Mon-
treal, Quebec
Rock-Ola seems to be a more solid
machine than its competition in
both mechanics and amplification:
Lubbock, TX
*
*
*
*
*

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