Star Tech Journal

Issue: 1993-August - Vol 15 Issue 6

D
August 7993
STAR*TECH Journal
LAZOR TRON
BALLY TWILIGHT ZONE
SPIN TO WIN
ALTERNATE LEG POSITION
RESETTING
OPTION PRECAUTION
David Vellenga
Fun Factory, Inc.
Grand Rapids, Michigan
Pat Lawlor
Williams/Bally Mfg Co.
Chicago, Illinois
PROBLEM
SUBJECT
NORMAL SETTINGS
The Bonus Jackpot co:unt re-
sets intermittently or ran-
domly goes into test mode.
It has come to our attention
that some distributors and/or
operators may have mistak-
enly bolted the legs on Twi-
light Zone into the wrong set of
holes. There are 3 holes for
each leg in the cabinet that
allow the game to be lowered
for use in a small person loca-
tion (kids).
Make sure that the rear legs
are bolted into the LOWEST
set of holes in the cabinet.
(This means that the rear is
higher!) If the rear legs are in
the UPPER two holes, the
game cannot reach proper
pitch even with the levelers
cranked up all the way!
SOLUTION
The first couple versions of
Roms all had these problems.
If you have below a version 4.0
and don't have the problems,
they may occur at a later date.
~,Mine didn't start until after a
month and a half of working
fine.
SOURCE
The manufacturer, Lazor
Tron, has new program up-
dates they say will cure the
problems. Contact your dis-
tributor for availability.
Mon1,tor Updates
1990, 1991. 1992, 199:!1
c:iet all four MonLtor Update5 for
onl4 f~~-2?
total.
at S12.9?,
lndLvLduall4 prLced
plu5 5/ h. thL5 off er repre5ent5 a
20 % dt.scount!
Order prepaLd or COl:7 from
5fAR*11:CH Journal, PO Box
106? Merchantvdle, NJ 08109.
SYMPTOMS
Unfortunately, itis possible to
set the front legs normally and
the rear legs low so that the
game is almost flat in pitch. If
you have a Twilight zone and
are having long game time/
huge scores/impacted earn-
ings you should check the fol-
lowing ...
We have heard of at least 10
operators who inadvertently
had their games set this way.
By correcting the problem
their earnings were raised
substantially.
STARE*
TECH~
••••••••••••••••••••••••••••••••••••••••••
• •
• •
NEW TECH PUBS FROM S*TJ

• •
•J:l•J.i-'•
Best Of STAR*TECH Journal Series
:) Pinball Maintenance & Repair
:) Jukebox Repair & Maintenance
:) Electronic Darts Fixes And Mods
:) Cranes & Redemption Game Repair
• ••••••••••••••••••••••••••••••••••••••••
0
STAR*TECH Journal
August 7993
W-8
8-LINE BOARD
VIDEO GARBAGE&
IMAGE PROBLEMS
MONITOR UPDATES
.
. .
Kenneth R. Duncan
Monitor Exchange
Millington, Tennessee
All monitor articles >
covered lrr 1990 br
>1991 ofl992 or
1993 put:>Ushed in a
h0ridy easy-to-reod
·••·•·?formdt.· •
>over 25 newvideo
.

.
monitor symptbrns
and Fixes Tri each ..
These tips pievi~
ously dppedred in
STAR,f TECH Jou,~>
nal's Volume Tl , 12,
l3 or 14. Update
.
..
.
ORIGINAL SYMPTOM
SOLUTION
Screen full of red "O". Battery
measured less than 1 volt de.
Replaced the two diodes in the
+5/battery switcher circuit.
Screen came up with the cor-
rect attract mode image. Volt-
ages were now 4.2 Vdc with
power on and 3.86 V de with
power off.
ORIGINAL ACTION
Replaced battery.
SECONDARY SYMPTOM
Screen came up with a partial
image with wide vertical lines
and "garbage".
p ARTS/LOCATION
The original diodes arer--.
1S1588. We subbed 1N4148 -
diodes. The PCB is still work-
ing properly after 2 months of
field service. These diodes are
located next to the "Reset"
switch.
SECONDARY ACTION
Measured voltages at pin 24 of
the 64k RAMs at Jl/Ll. Found
2.17 volts de with power on and
3.86 volts with power off.
your technical
librdry with these
>Valuable
t
.
odd $3.505/h
OrdelC
PrepaidorCOD
S*TJ
PO Box 1065 •
Merchantville, NJ
08109. 609/662-1080.
Don't Let Those Time & Money Saving
Mod's, Fixes & Technical Tips
Gather Dust In Your Service Files ...
~ir.:w-Alll!~m:mwA-~:$m:mm,:<:~~:;:;m;r~..w.H'~~..::rf: •• .. ·,:·...
.- ...• •...
.
.
·.·.
.· . . •:
··:.:··:.:.:·-::
Mail or fax them to STAR* TECH Journal & keep your name <
(dnd your company's) oufihfront with the mostprogressive
technicians in the Coin-op Industry. Share the knowledge!• •. ·•·
··:..:<.· ···.
• •
·:<>.
ST;,t/Fl*TECH.· ~ A L
PO Box 7065, Merchantville,NJ 08109
Phone.; 609/662-7080 Fax: 609/662-0537.

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