Star Tech Journal

Issue: 1991-April - Vol 13 Issue 2

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P.O. Box 1065
18 North Centre Street
Merchantville, NJ 08109
Phone:
Fax:
Modem:
Publisher /Editor:
Office Manager:
Project Manager:
Contributors:
609/662-1080
609/662-0537
404/631-2928
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HOT TIPS I: Bench Tech
Keep this valuable reference manual nearby on your
workbench-you wUl use it! A compilation of"hand picked"
STARlrTECH Journal articles plus additional time-saving
tech tips from service managers around the counby.
Arranged by game manufacturer, alphabetically. Special
plastic comb binding allows handbook to lay flat on your
bench, freeing both hands for the job. And sized at 5-1 /
2" x 8-1 /2" it won't clutter your work area. $29.95.
James Calore
Sharon DiRenzo
Neil Calore
Reinhard Bangerter
James Beck
J.D. "Doc" Best
Ray Fontana
Vic Fortenbach
Bill Johnston
Del Jones
Pat Lawlor
Donald B. Prince
Kathy Reilly
Jamie Saccullo
Randy Terry
Evan Wessel
Erik Wittenzellner
.
. .
1ililiiii:llill:iiiiliilliiiii::i
HOT TIPS II: Field Tech
Don't leave home without it! Just like Har TIPS I: Bench
Tech -except for this special issue manual, we had
veteran field service people select the most helpful
STAR*TECH Journal articles and add some of their own
great tech tips! Geared toward the tech/mech doing
service on location, as opposed to shop repair with the
luxuries of time and resource materials. Arranged by
game manufacturer, alphabetically. Special plastic comb
binding allows handbook to lay flat, freeing both hands
for the job. This sturdy 5 1 /2" x 8 1 /2" handbook will flt
comfortably into your toolbox. $29.95.
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I SERVICE MANUAL ORDER FORM I
STAR*1ECH Journal, April, 1991. Volume 13, Number 2, Copyright
© 1991 by Star Tech Journal, Inc. All rights reserved. Information
contained herein is verified whenever possible but S* TJ is not re-
sponsible, however, for damages which may occur from imple-
menting this information. Address inquiries to: PO Box 1065. Mer-
chantville, NJ 08109. Phone: 609/662-1080. Subscription rates: USA
$67.00. Canada $76.00 (US funds). Other Countries S 120.00 Air Mail
(US funds).
OSTMASTER: Send address changes to STAR* TECHJoumat. PO Box
.065. Merchantville. NJ08109. STAR*TECHJoumal(ISSN 0739-1048)
is published monthly by Star Tech Journal, Inc .. 18 North Centre
Street. Merchantville. NJ 08109. Second Class postage paid at
Camden.NJ.
Rush me _ _ HOT TIPS I: Bench Tech $29.95
Rush me _ _ HOT TIPS II: Field Tech $29.95
Name: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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Payment Enclosed

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Mail coupon to: STAR*TECH Journal, PO Box 1065,
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·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.

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