Classic Mode

Star Tech Journal

Issue: 1994-October - Vol 16 Issue 8

october 1994
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CD
...................................
KoRTEK
WELLS GARDNER
WMS STAR
TREK:
MONITOR
PARTS SOURCE
NG
HORIZONTAL
RANGE CAP
PROXIMITY Moo
Rich Risius
Moss Distributing
Des Moines, Iowa
Sid Craun
State Sales & Service
Baltimore, Maryland
John Liikala C.E.E.T.
Canadian Amusement Games
Burnaby, British Columbia
PROBLEM
PROXIMITY SENSOR
PROBLEM
I am having trouble finding some-
one who knows anything about
Kortek monitors. I have one that
has a ripple or hum bar that runs
vertical and pulses the screen.
I've separated the power supply
out of the circuit and put a load
on it, and with a 'scope on the
load I still have the ripple. I've
replaced the zener diodes, tran-
sistors, and all the capacitors in
the power supply but none of that
has helped. Also can't adjust B+.
A condition exist when the eddy
sensor (switch matrix# 16 &17)
is closed, any opto switch on the
same related switch row might
change state. (If closed, it will
read open and vice-versa). This
problem is fixed by cutting a
trace and adding a IN4148 diode
on the proximity sensor board.
To expand the horizontal range
on Wells Gardner K7000 series.
SOLUTION
Marc Mandeltort
Marco Specialties
West Columbia, South Carolina
Sounds like you need a "Get
Well" kit. Zanen Electronics has
get well kits for the Kortek moni-
tors as well as tech help on same.
SOLUTION
If you are adjusting the horizon-
tal frequency on this monitor, try-
ing to eliminate that one side that
has a tear in it, and over-adjust-
ing causes the picture to lose the
horizontal sync, try the following
capacitor change:
PROCEDURE
• Cut the trace going to the
collector of Q3 on the com-
ponent side of the board.
• Install the diode between
pin 4 of connector Jl and the
collector of Q3. The cathode
of the diode goes to Q3. This
is done on the solder side of
the board.
!!I
·~
j
CHANGE
FROM
1 mfd/25 W volts
1
I
I
TO
10 mfd/35 W volts.
@
J:t:Jlllws.tisR122a:+1aaw]·· · •
.rv1FG PHONE
&
C22
FAX
See page 2 7 For updated rnanuFacturer
Customer Service phone & Fa.x nurnbers.
j
october 1994
STAR*T'ECH JOURNAL
................. . . . . . ... . .. .. .... . . . . ..... . ... . . .... . ............
VIDEOGAME
Monitor
SECURITY STANDARDS
Proble111s?
ORDER THE TECH PUB
AREAS OF CONCERN
As reported by the Industry Stan-
dardization Committee. Based
on customer comment cards and
a phone survey to operators the
top three areas of concern on
video games are:
MONITORS:
SYMPTOMS/SOLUTIONS
Includes all monitor
articles from
1) Cashbox
1990, 1991, 1992,
1993 & 1994
__________
0 1990
0 1991
O 1992
0 1993
01994
.,..._
$14.95
$14.95
$14.95
$14.95
$14.95
OBSERVATIONS
Save over 30% order the
0 Entire set for $49. 95
Name: _ _ _ _ _ _ _ _ _,
Company _ _ _ _ _ _ _ _
Address _ _ _ _ _ _ _ _ _
I-
:ci~---------
I
I
I
1
I State/Zip
I
: Order O Prepaid or O COD :
I
.
(Please add $3 s/h. Thank you!)
r -
2) Control panel
3) Back door
I
,~ ~ ~ -
The control panel is
easy to "pop" on
most games and it is
easy to get into a
game from the back
door. Once the back
door is open, the con-
trol panel can be
opened as latches are
presently used.
The kids have found
tha t stealing the
game boards and sell-
ing them into a sec-
ondarymarketisnow
more profitable than
steeling the money
game.
1
side wall of the cabinet that
makes it difficult to pry open the
control panel from the outside.
BACK DooR
The back door cannot be elimi-
nated mainly due
- - - - - - - - - - - - ,
to UL require-
ments which state
that high voltage
"The
electronics need to
be
inaccessible
back door
from the front of
the cabinet for
cannot be
safety of the gen-
eliminated eral public. (It also
must protect a thief
mainly
who goes for the
cash box
-we
due to
wouldn't want him
or her to get elec-
UL
trocuted).
.
req u 1 re-
It was also pro-
posed that the front
I
men ts ... II
,
of the cabinet be
,
made of plywood
L - - - - - - - - - - - - -
to give the operator
more security (bet-
from the ter base to mount security hard-
ware on).
I
CONTROL PANEL
TALLY
It was proposed that the control
panel be made such that it can be
secured directly to the cabinet
and become an integral part of
the cabinet. Dynamo uses a
bracket that is mounted to the
control panel that inserts into the
The votes were split between
manufacturers who make dedi-
cated games and those that make
general systems cabinets. All
cabinet manufacturers will be
polled to come up with a pro-
posal. Results will be upcoming .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Download Page 5: PDF File | Image

Download Page 6 PDF File | Image

Future scanning projects are planned by the International Arcade Museum Library (IAML).

Pro Tip: You can flip pages on the issue easily by using the left and right arrow keys on your keyboard.