Re: 1975 Wizard EM repair

On Mar 19, 12:31 am, Kerry <kcimm...@xxxxxxxxxxxxxx> wrote:
On Mar 18, 10:59 pm, Pinball wizard <sa6m...@xxxxxxxxxxx> wrote:

Super MEGA Thank you to Kerry for all his help for me tonight.

We now have 80% of this beast up and running
It looks like I'm going to need some parts and more cleaning, but its
starting to show major signs of life.

Lots of work still to be done.

Thank you once again Kerry and to all that chimed in on the thread.

It's great that you have playfield life... now to clean up the start-
up problems.

On the score motor running... you've shown that manually operating
(forcing open I think) the reset relay stops the score motor... so I'm
pretty sure the problem is in the reset relay coil control, with is at
about C12 & D12 on the schematics.

One of the 16 Drum Units Zero switches or the Bonus Zero Relay switch
is closed when it should not be.  The Bonus Zero Relay switch is
easiest to check, so make sure the switch with the Green/Black and
Yellow wires on it is OPEN.

If that's not the problem, then it's one of the score reels.  To check
that you need to go through them one at a time.  There should be some
type of wire or clip that lets the individual reels slide out from the
back.  You should be able to see a switch that operates when the score
reel advances to zero.  Make sure that's open when the score reel
would read zero from the front.  It looks like there might be two
different zero detect switches.

If you can follow the schematic, once those two parallel switches are
OPEN, the RESET relay will release which you've already shown stops
the score motor.  Let me know if you have questions.

On the parts, checkhttp://www.pbresource.com/
orhttp://www.marcospecialties.com/

- Kerry

Hello to all

Two main problems plague this machine.

1.the game will endlessly rest itself after the first credit is rung
in and the score reels set reset to zero.
I have to manually open the reset relay to get it to stop.

2. The scoring triggers on the playfield will ring in all 3 scores at
different times.
When a 10 is triggered it will most times just ring in 10 points, but
sometimes ring all 3 scores.
When a 100 is triggered it will more often than not ring both 100 and
1000.

As I am a novice with any type of pinball machine, these problems
stump me.

If any of the experts here can lead me to a solution to these problems
I'd be deeply grateful

Mike.
.

Relevant Pages

  • Re: 1975 Wizard EM repair
    ... the reset relay stops the score motor... ... One of the 16 Drum Units Zero switches or the Bonus Zero Relay switch ... then it's one of the score reels. ...
    (rec.games.pinball)
  • Re: 1975 Wizard EM repair
    ... the reset relay stops the score motor... ... One of the 16 Drum Units Zero switches or the Bonus Zero Relay switch ... then it's one of the score reels. ...
    (rec.games.pinball)
  • Re: WILLIAMS EM ARGOSY STARTUP PROBLEM
    ... By this I just mean that the switch contacts are clean and touching so ... First put the red lead on the yellow wire on the Coin relay switch. ... Blue-White wire on Reset relay coil (loose or broken Blue-White ... Do the score reels successfully reset, or do they just try to reset? ...
    (rec.games.pinball)
  • Re: Tech EM: Gottlieb Magnotron post below should have had this in the subject...
    ... player unit in the backbox. ... Then look at the 5 sets of switch ... If the score reels don't get to zero, ...
    (rec.games.pinball)
  • Re: Bally EM Tech Help! Aladdins Castle Reset Problem
    ... the solder joints on all 16 score reel switches... ... I have found that the reset relay is ...  If I manually hold on the reset relay via the hold in switch, ... It was a broken wire on a zero ...
    (rec.games.pinball)