Star Tech Journal

Issue: 1982-July - Vol 4 Issue 5

5
STAR*TECH JOURNAL/JULY 1982
CONTROL PANELS* VIDEO GAME ADJUSTMENTS
By Todd Erickson, Summit Amusement, St. Paul, MN
Control Panels
The control panel on a video is probably the source of
most service calls. The majority of these problems can be
prevented or eliminated by proper shopping of the game or
visual inspections while the game is on location.
Our first case is any new game. Most operators will
install the game on location without any inspection. All
pal nuts on the Wico fire and start buttons -should be
checked for tightness. If the panel is wood or wood
backed, the wood may shrink, thus leaving the mounting
screws loose. All joystick screws must be tightened. If the
game is going out any distance, I feel the joystick mounting
nuts should be changed to aircraft locking nuts. Check all
wires for cold solder joints that may come off from
vibration. Games that have slip-on connectors must be
checked to be sure the connectors are tight.
Games to be shopped will require a little more work.
All buttons that have burns or scratches should be
replaced with nylon or lexan buttons. Lexan buttons by
Wico, I feel, are the best in the industry. I think the
translucent colors look good also. Fire and other high
usage buttons should be replaced because nylon will get
brittle with age. This can save a service call. A close look
at all riveted points would show if they are loose in the
blade and may eliminate an intermittent problem. If the
points have a lot of dirt on them, chemical cleaner will help
eliminate a call.
On Midway games, the lug on the points should be
checked for cracks, especially on older PM games. Check
all blades for cracks. Paint should be touched up if needed.
New overlays from the manufacturer or Wico may help in
many cases. Making the game look new will help it earn
more money. Atari games that have the old short bezel
should be replaced with the new tall bezel. They can't be
unscrewed from the outside. All joysticks should be
inspected for wear of parts. Midway joysticks should have
all old white parts replaced to newer red plastic parts.
There should be a washer to protect the joystick from
being forced down and bending the blades. The rubber
center should be checked for the center separating from
the rubber. The Wico joystick must also be checked.
Points becoming unriveted or cracked, the rubber center,
and having a metal washer are the most important to
watch. Older Wico joysticks should be upgraded to new
units with the large handle. This is especially true on the
units with the long handles. The low price of the new unit is
the reason I feel this way. Spare parts can then be used off
the old unit. Old joysticks like "Polaris" /"Crazy Climber"
that are worn are best replaced with a new Wico. Try to
mount them as close to the metal panel as possible, using
carriage bolts. This way you don't need the long handle.
The longer the handle, the more wear you get on the
joystick.
Games on location should be visually checked every
few weeks to a month to eliminate problems. The further a
game is from the shop and the more play the game gets
dictates how frequently it should be checked.
Video Game Adjustments
The player of a video game today must feel he received a
fair return for his quarter. The operator, however, can't
have people playing an hour or two for a quarter. The
games of the future, for the most part, will have adjustable
software. The operator will not have to buy a "speed-up
kit" to protect his investment. There are a few games
today that have these options, but not as many as will be
coming in the future ( as we get cheaper memory and the
new 16-bit processors).
One game that was just released by Williams that has
many adjustments is "Robotron". As with their past
games, they have many game adjustments. They have a
difficulty setting from 1 to 10 with 10 being the hardest.
Early games were shipped at 5, which, I feel, may be too
hard for many locations. I like to see average game time at
least 90 seconds to about 2 minutes. The setting I
recommend is either 2 or 3 now. This may change after the
game has been out a few months.
There is no way that I feel the program should be the
same in the average bar and average arcade. The 12- to
18-year-olds are much faster than the 25- to 40-year-olds.
I also like being able to adjust the difficulty of the game
without it being obvious. In " Robotron", the men can be
adjusted from 1 to 9. The point value when an extra man is
added is from 15,000 to 30,000. This function is very
critical on the lower value; a good player may be able to
play a long time without helping the weak player. Adding
an extra man or two in a location where there are poor
players will help the poor player reach the bonus level, but
not after that. The good player is winning extra men every
X points so the extra man doesn't mean as much to him as
to the poor player. The difficulty level should be set so that
it is comfortable to play for the location.
It is surprising to see the number of operators I have
told that a game is adjustable, and he informs me he is a big
operator and doesn't have time. With the games costing
almost $3000, the operator that will be here tomorrow is
going to be the one who reads the instructions with the
games. Williams was good enough to give the operator a
speed-up or down kit (game adjustments) so that he will
get maximum life/earnings from the game.
6
STAR*TECH JOURNAL/JULY 1982
SERVICE 'l'IPS:
STERN FLIPPER ASSY'S * WILLIAMS PS CONNECTOR* STEREO VS. MONO
By David "Rock" Bogrees, JCS Coin Machines, Dayton, OH
Stern Flipper Games
The flipper assembly used by Stern had a high frequency of
breakdown. A game that has been on location for a month or two
may have flippers that stick badly. A technician will go on the
call and replace a broken screw in the plunger stop. The new
screw will then work loose because the hole has been battered
into an oval by the old screw before it broke. Countless service
calls will then ensue if the whole bracket isn't replaced. Brackets
are costly compared to the solution that is offered. An 8/32 tap,
tap handle, and some 8/32" x 1/4" screws are needed. After
removing the flipper bracket from the playfield, tap the plunger
stop and the bracket with the 8/32" tap. You now use the 8/32" x
1/4" steel screws to secure the plunger stop to the bracket. These
screws are much heavier than the 6/32" that come stock with all
Stern games. Bally uses the 8/32"s. I have had far less trouble
with their flipper assemblies. Be sure that you don't drill the hole
out larger until you have tried tapping by hand first. Drilling will
make the threads more coarse and the screws will fit more
loosely. I would be sure to take a #29 drill bit along in the rare
case that you may need it. This mechanical modification has
made those problem pinballs very reliable. Note: After writing
this article, I learned from Stern that all games previous to" Split
Second" required this modification. The games after this have
the larger screws in them from the factory. Stern suggests using
case hardened screws whereas I have had no breakdowns using
standard steel screws.
Williams Power Supply Burned Connector
Williams changed their power supply board when "Black
Knight" went into production. This is a great .design with one
minor yet reoccuring problem. The general illumination circuit
fuse (F7) keeps opening. It appears to blow but it is only melting
from heat. The heat is coming from a poor solder joint on the left
side of the fuse on the component side of the fuse clip. This side
of the clip must be removed and cleaned of all oxide. The heat is
also coming from the connector, 3J8 pins 6, 7, 8 and 9 due to an
overloaded molex. The fuse clip should be soldered in well on
both top and trace sides. The connector can be broken and the
wires from 6, 7, 8 and 9 should be joined together and soldered
onto a 16-gauge wire. This wire should go to a wire nut where it is
joined to another 16-gauge length of wire which goes to the hole
from which the burned section of the male connector was
removed.
Stereo Versus Mono
The reason for writing this is that some people aren't sure which
type of extension speaker wiring should be used. Of course, it is
easier and cheaper in the short run to wire for monaural. Taverns
that are large really don't require stereo sound. Medium to small
size locations can benefit from stereo sound. In past years every
record was not made in stereo. Some operators felt that due to
that fact, stereo was just a fad. It is not. People hear stereo at
home on their hi-fi, and in their car on their radio and they expect
it when they go to a bar. When you are competing with a business
down the road, you must have an equal or better product. Rowe
International makes their amplifier with two identical yet
separate channels. There is also a switch to select stereo or
mono. If you have your speakers wired for stereo, you can hear
the difference just be changing the switch. The speakers must be
alternated left and right channels for the proper effect. Room
symmetry must be observed also when placing speakers.
Another major point that should be noted is that on the same
amplifiers there are adjustments for room accoustics. This is in
case the room is a skating rink with a lot of echo or a bar with
carpeted walls and drop ceiling causing a muffled sound. Each
channel can be adjusted individually for bass and treble at
minimum medium and maximum levels. This will bring out the
full capadity of an~ juke box at any location.
PACE'S
FUSED EYELETTING SYSTEM
Pace's PFP-30 Fused Eyeletting System permits field repair of
damaged or missing plated-thru holes and terminals on PCBs
with factory quality.
The PFP-30 is a high reliability system which permits
installation of a variety of hot fused eyelets and funnelets for a
broad range of setting conditions. It also eliminates the solder
"blowout" problems associated with conventional eyeletting
techniques.
The PFP-30 is easy to set up and align precisely; can be used
in a vertical hor horizontal position; and has a long, deep reach
for hard-to-get-at repairs.
Pace's Fused Eyeletting System includes: a fused eyeletting
machine, tool kit, CIR-KIT'" (with pre-tinned/scored eyelets,
TRAK-PADS, etc.), and a hea,zy duty-power source.
Pace's PFP-30 is available from Pace representatives
worldwide. More information may be obtained by contacting:
Marc Siegel, Pace, Incorporated, 9893 Brewers Court, Laurel,
MD 20707. (301) 490-9860.
Save damaged printed circuit boards and assemblies with Pace
lncorporated's Model PFP-30 Fused Eyeletting System which permits
repair and replacement of damaged or missing plated-thru holes and
terminals.

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