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Bingo
pinballs Created on
07-13-2020 Some
of the 1952s had a manual Ball Lift, but all of the
other Bingos have a Ball Lift motor and operate off
the same principles, so the schematics all look similar, which is Cool` From: smddms@aol.com (smddms@aol.com) Question - The
ball lift motor does not activate after the second ball is shot. I checked
out the ball lift motor relays on the shutter motor and on the lift motor itself and they
seem to be functioning properly. There was a worn contact on the timer unit
that I fixed, but it did not seem to correct the problem. I think the problem is
in the timer unit, but I am not sure how to verify that. Thxs
- Steve From: Steve Pazar (zarco@sonic.net) Answer - Steve,
these types of problems are usually in the timer stepper. If the contacts are
now OK, make certain that it’s not sticking. This is usually caused by old grease
collecting crud and making the step up/down function sluggish to the point
where it doesn't always work. Another area to
look at is the switch on the top of the PF that the ball goes under as it
enters play. This, along with the shooter lane switch is what triggers the next ball.
The first ball does not depend on these switches, only the first position of
the timer unit. Good luck! Steve OK,
here we know the motor and lift both work, the first
two ball were raised, which indicates those mechanics are good and
we can move on and focus our attention elsewhere ...just like the guys do` Now
the Timer Unit is always in the backbox, in the Head, and is usually mounted
on the door` But
in some of these early Bingos like this 1953 Yacht Club, if I remember it is
near the Replay Meter in the box` The modules are all labeled, so you can easily identify them ~
In later machines, the manuals usually have a
placement diagram` The
Timer Unit controls the sequence of quite a few events/operations in the
Bingos to help ensure that
the complex mechanics all work in order as needed`
…the
Yacht Club manual is one of the nicer ones and has some great images of the
modules, with
the contacts, wipers, coils and switches nicely
identified`
Well
as you can see, it is a complex assembly that makes mechanical connections to
transfer power around the Bingo` It
sits in the open-air, surrounded by other modules, exposed to the environment
…all the gunk and dirt in the game – etc` Steve
has worked on and fixed a lot of Bingos over the years
and this is good advice, which to me always comes back to
the need to use good lighting and good visual inspection to identify and find
problems` On
the wiper side look for clean contacts and good alignment to the wipers arms – Wiper D` On
the Coil Side, one coil is the Step-up and one s
the Step down` …are
they still strong enough to operate the mechanics on that side, the control
arms - etc` …or
is everything dirty and not lubed enough to still operate` Now
these units are much like the Steppers that have a zero position and a final
position and what is Cool, is
that without power on the machine, you can trigger the coils and step through
the operation while looking for problems. …and
if you are not comfortable doing that, just open up
the backbox during a game and watch` Now
the Ball Lift circuit on the schematic looks a little complex, but really it
is just that there are a lot of switches involved` Most
of them are Ball Through switches, you have to have (8) balls in the machine or it won’t even make an effort to lift
a ball and start the game off for you` Hopefully
you can solve most of the problems you will see without having to do any
advanced signal tracing, which I
will cover later ~
For now, this is still Bingos-Basics to familiarize you with the Ball Lift
function, modules, and operation`
…the
Ball Lifter` You
need to have (8) balls in the Ball Trough` The
Timer Unit has to be in good-working-order` The
Shooter Lane Switch up on the Playfield needs to be working` 80%
of the issues you will see will be likely be a problem in one of those areas`
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