Classic Mode

Star Tech Journal

Issue: 1991-April - Vol 13 Issue 2

(
·srARlrTECH·JoumbJ••···
Bally Vs Wnis
Flippers
Evan Wessel
Mercury Amusements
Havertown, Pennsylvania
Taito Chase HQ
Static Prone IC
Sam Cross
Godwin Distributing Company
North Little Rock, Arkansas
PROBLEM
PROBLEM
Game service makes some of the strangest co-
incidences. I've had a rash of broken flippers in
Elvira & Dr Dude this week. The Bally grooved
design flipper does not have the same strength
as the Williams flipper (which I suspect is made
by Wico).
Input chip IC62 (TC0040IOC), A CMOS IC gets
knocked out by static, resulting in the game not
setting up. The usual tip-off IC62 is bad is that
you can rub your finger across the top of the chip
and feel a hump in its center.
SOLUTION
After replacing chip, remove 20 caps as follows:
C83 - C92, and Cl08 - Cll 7 and replace with
IN4 735 zener diodes (5.1 v) with the banded side
of the diodes facing away from the edge con-
nector.
PREVENTATIVE CURE
The plastic paddles have been separating from
the shaft and I do not like flipper service. It's too
dirty. When they break, just replace them with
the Williams type and save yourself some service
in the future.
Betson Crane
Claw String
Jamie Saccullo
Mr. Packman Enterprises
Ft. Lauderdale, Florida
PROBLEM
On a Betson Crane, when the claw comes down
and hits the top of the toys, it takes 2 seconds
longer to close and reverse the motor. This
causes the string to fully unwind and then when
it does reverse. the string winds up backwards
and is then inoperable thereafter. Changing the
trolly assembly, MPU board. checking all wiring
and switches has no effect.
This shunts any static spike over 5.1 v to groun~
and also shunts the negative portion of the
spike. Bulk zeners 100/$20 are available from
All Electronics Inc., toll-free 800-826-5432.
Data East Pinball
Spring Mod
Randy Terry
Alpine Amusement
Connersville, Indiana
PROBLEM
Ball does not always come out ofball trough onto
shooter lane of playfleld.
CAUSE
Ball strikes playfield and then rests between
playfield and next ball rolling down.
SOLUTION
Check the switch at the top by the pulleys. It is
the one that the string touches as it moves. If it
is not adjusted properly the machine doesn't
know that the claw has reached the bottom and
the motor keeps running until it reverses.
SOLUTION
Remove spring from ball trough eject assembly~
(Data East part #500-5012-00). Remove
(shorten) 10 windings from spring. Reinstall
spring. I have not had the service call on any
pinball since.
. STAR*TECH Journal
Add A Coin Door
Kick-Out Switch
FLUKE
37
BENCH/PORTABLE MULTIMETER
Bill Johnston
Johnston's Video
Buffalo. New York
SUBJECT
Buffalo Bill reports that a fellow operator just
north of the border has modified his coin doors
to allow unmetered test plays while servicing the
game with the coin door open.
Troy Van Grunsven of A NEW DIRECTION
suggests wiring a kick-out switch in series with
the coin meter. "With this wired as standard in
each of our game cabinets. the need for re-
cording metered test plays has been eliminated.
and the cash should always tally against the
meter," says Troy.
J11.is technique of installing a kick-out switch,
which opens the coin meter circuit whenever the
coin door is opened, will reduce the extra
bookkeeping of test plays in those fussy corpo-
rate accounts.
UNIQUE CASE DESIGN
The front panel of the Fluke 37 slopes 15 degrees.permitting easy
viewing. A storage compartment for test leads and small acces-
sories is built into the case. A carrying handle is molded into the
case.
POWER
The Fluke 37is battery powered. Typical battery life is 1000 hours.
Also, works with the optional Fluke A81 battery eliminator.
MIN-MAX & RELATIVE MODES
Min-Max stores the highest and lowest digital readings, allowing
you to monitor a signal for seconds, or days. The relative mode
remembers a reading and shows the change (difference) between
it and any following readings.
3200-CouNT DIGITAL DISPLAY, 31-SEGMENT ANALOG BAR GRAPH
Better accuracy and resoltution than a conventional 3-1 /2 digit
(1999 count) DMM, updated two times per second. Bar graph
makes dynamic measurements such as peaking, nulling, zero
adjustments and capacitor checking. Updates ten times faster than
digital readout.
TOUCH HOLD
Phone & Fax
See page 21 for updated manufacturer
customer service phone & fax numbers.
The meter captures the measurement, beeps, and locks it on the
digital display until you're ready to view it. Automatically updates
with each new measurement.
AUDIBLE CoNTINUrrY/D10DE TEST
Wiring, diode and transistor checks can be done quickly without
looking at the display.
WARRANTY: 2 years. SIZE: 3.8" H x 8.5" W x g• L.
PRICE: $264 (please add $12 s/h & ins.).
-----------------
Order Form
# 1302
MURPHY'S LAW
... :::-:-
-_-_-· .. ·,·
-·:_:
<-
.:::: __ :_ ..
••••.••• The worseyour line istang~fod,
the better is the · fishing around you.
I
I
Please
send
_
_
_
Fluke
37Digital
Multimeters.
I
I
I
I I Name/Co.
--------------·
I Address - - - - - - - - - - - - - - . I
I
I City/State/Zip _ _ _ _ _ _ _ _ _ _ _ _ _ I
I Send check or money order to STAR*TECH Journal, PO Box I
I 1065,Merchantvi/le,NJ08109. NJadd7%. Ph:609/662-1080.1
L--~~~~-~~i~~~~~--~

Download Page 4: PDF File | Image

Download Page 5 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.