Star Tech Journal

Issue: 1993-July - Vol 15 Issue 5

D
July 1993
STAR*TECH Journal
r WO For fhe Price Of Otte !
STAR~*
TECH~
Get both
/-lot Tips L· Bench Tech
Post Office Box 1 065
Merchantville, NJ 08109
and
/-lot Tips D: Field Tech
for ore low price. Use the coupon below and
receive both of these tech booklets for
Phone: 609.662.1080
Fax: 609.662.0537
Bbs: 404.631.2928
Publisher /Editor:
Office Manager:
BBS Sysops:
Contributors:
James Calore
Geraldine Murphy
James Beck
Mike Cowen
Mike Cowen
Sam Cross
Rick Davies
Silas Lester
Chris Love
Raymond Markiewicz
Bill Morris
Larry Munday
Don Powell
Donald B. Prince
Evan Wessel
STAR*TECH Journal, July, 1993, Volume 15, Number 5,
Copyright© 1993 by Star Tech Journal, Inc. All rights re-
served. Information contained herein is verified whenever
possible but S* TJ is not responsible, however, for damages
which may occur from implementing this information. Address
inquiries to: PO Box 1065, Merchantville, NJ 08109. Phone:
609/662-1080. Fax: 609/662-0537. Subscription rates (one
year): USA $81.00. Canada $92.00 Air Mail (US funds). Other
Countries $144.00 Air Mail (US funds).
POSTMASTER: Send address changes to STAR*TECH
Journal, PO Box 1065, Merchantville, NJ 08109.
I" STAR* TECH Joumal(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.
$24.95
I
I
I
I
I
I
I
I
-----------------
Name: _ _ _ _ _ _ _ _ _ _ _ _
Address: _ _ _ _ _ _ _ _ _ _ _ _
City/State/Zip: _ _ _ _ _ _ _ _ _ _
Both Hot Tips I & Hot Tips II for $24.95 + $3 s/h.
a Payment enclosed
a COD
I
I
I
I
I
I
I
I
iiilJliitiiiW~il
JAMMA Test Card
DESIGNED FOR THE GAMES TECHNICIAN
~~; Iii lmlµrc:i~2i ellill
Check out the entire game wiring system
before
you plug in that $1000 game board!
llll~if/tlillllll
Name _ _ _ _ _ _ _ _ _ _ _ _ _
Company _ _ _ _ _ _ _ _ _ _ _ _
Address _ _ _ _ _ _ _ _ _ _ _ _
City/State/Zip _ _ _ _ _ _ _ _ _ _

Prepaid
□ COD
STAR*TECH Joumol
0
ATARI. STUN RUNNER
STEERING PROBLEM
July 1993
POOR QUALITY~.
COIN SWITCHES
Mike Cowen
Greater Southern Dist.
Atlanta, Georgia
Rick Davies
Palisades Amusements
Las Vegas, Nevada
SUBJECT
SUBJECT
Atari Stun Runner steering
problem.
CPU board under the piggy-
back board. The chip is sock-
eted for easy replacement.
SYMPTOM
Cannot steer side to side in
game mode. Steering checks
OK in test mode.
PROBLEM
The battery-backed RAM at
location 210E has failed. This
RAM holds calibration data
for the steering circuit while
the game is off.
SOLUTION
Replace the failed RAM. It is
located at the far comer of the
SUBSTITUTES
In regards to Bill Johnston's
article about coin switches in
the May 1993 STAR'ff'TECH
Journal issue "Testing Coin
Door Switches".
Acceptable replacements are:
FINDINGS
• ST (SGS-Thomson)
MK48Z02B-15
or
• Dallas DS1220.
NOTE
The game will calibrate itself
on power-up. Make sure you do
not hold the controls during
calibration.
I am certain the blue coin
switches used on Coin Con-
trols doors are the main cul-
prits. Having changed at least
100 of them myself, I've found
that these switches are oflo~
quality and are sometimes baa-,.·
right out of the bag. I've seen
220 ohms across a brand new
switch!
TESTING
Check the new ones before you
install them. I al ways click
them at least five times to
verify their operation.
Don't Let Those Time & Money Saving
Mod's, Fixes & Technical Tips
Gather Dust In Your SeNice Files ...
l!ilflA'6~Wlllr:~1a1il1l
B:9ihi¢Plb¢1q$fty:
:J
1§¢D@i¢l¢h$!9!H~
§fi ·········••1••····························································~~1~;;1,11,11;f1~~1:7·····•········•·••·•·····.····
It's really strange, sometimes
they read perfectly good then
several clicks later you'll get a
bad reading. If anyone makes
a higher quality replacement,
I for one sure would be inter-
ested.

Download Page 3: PDF File | Image

Download Page 4 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.