-.J,..,-rAR TECH JOURNAL
March 1994
A Reminder ...
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If you have purchsed the
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S*TJ Article Index Data Base,
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please remember to mail in
your registration card.
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Data East Jurassic Park ...
Joe Blackwell
Data East Pinball, Inc.
Melrose Park, Illinois
0
become available.
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Monitor
Problems?
Monitors:
Symptoms/Solutions
includes all monitor articles
from 1990, 1991, 1992 &
1 993 for only
$39.95
We also took a hard look at our
in-house procedures and priori-
ties which included making some
organizational changes -all focus-
ing on better quality.
Order Prepaid or COD
STAR* TECH Journal,
Post Off ice Box 1 065
Merchantville, NJ 08109.
Listed below are some of the
problems we have seen and some
you have informed us of.
~
Address Change
i
PO Box 1065
Merchantville
New Jersey 08109
~ Sii:btrAM Ii i
:
Coils firing at random, switch
matrix problems, blown fuses.
1
One of the main trunks of the
playfield wiring harness is rub-
bing against the upper right flip-
per coil stop bracket. The vibra-
tion from the coil energizing
causes the harness to saw against
the bracket which cuts through
the insulation leaving a short con-
dition.
PROBLEM
We are no longer at
1 8 North Centre Street.
Please Note:
◊smlfo~rz
::1
r
Display indicates "Six Balls Miss-
ing".
2
Switch drive transistor Q54 has
failed. The lock-ball assembl)
SQlenoid (mounted under the
arch on top of the playfield) had
the 32V de line ( red wire) located
extremely close to the mounting
screw for the six-ball trough as-
sembly.
This created a potential short
condition through the Q54 drive
line.
SOLUTION
We've Moved!
Send all correspondence:
1
Cut/remove some of the wire ties
and inspect each wire individually
insulating any bare wires. Re-se-
cure harness with wire ties. Use
a large wire tie to pull the bundle
away from the coil stop bracket
by securing it to another wire
bundle.
SOLUTION
PROBLEM
1
STAR* TECJ-&
Jurassic Park made money! It
was #1 for 3 months running on
both the "Re-Play" and
"Playmeter" polls, indicating its
operator acceptance.
Having said that, it did have prob-
lems which costs us all time and
money. We at Data East tried to
be pro-active by shipping out
thousands of dollars worth of
update kits and warranty replace-
ment parts.
Get our tech pub
1
SUBJECT
2
Insure the solder lug on the sole-
noid is insulated from the mount-
ing screw (i.e. use electrical tape
or heat sink).
s.1wm±a1 a
◊
>
Flipper does not energize and
LED on the Solid State Flippe
Board does not flicker when flip- -
per cabinet switch is actuated.
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