Williams EM Cabaret (Williams, 1968) Ball not ejecting from Advanced Bonus hole.

[getitright]

I'm new to hands on pinball repair and such but not working with my hands. This machine was in bad shape when I got it and I've cleaned about 80 percent of its contacts and stepper units. However, the 300 advance super bonus on the playfield wasn't working, got it cleaned and worked, then the issue arose. Every so often, the ball goes into the Advanced bonus hole triggers it on the reel but doesn't eject it from the hole. Unless a 300 point value on the playfield is hit it won't move. I'll record a video of this if possible.

 

[pinballdaveh]

I'm new to hands on pinball repair and such but not working with my hands. This machine was in bad shape when I got it and I've cleaned about 80 percent of its contacts and stepper units. However, the 300 advance super bonus on the playfield wasn't working, got it cleaned and worked, then the issue arose. Every so often, the ball goes into the Advanced bonus hole triggers it on the reel but doesn't eject it from the hole. Unless a 300 point value on the playfield is hit it won't move. I'll record a video of this if possible.

On the eject relay, find a normally open switch with orange & red-orange wires connected.
On the score motor find cam 5 switch A make/break switch the normally closed part of the switch with the red-brown & yellow wires connected.
Clean and inspect connections on each switch.
Make adjustments if needed.

 

[getitright]

OK thanks I'll check it out

 

[getitright]

I checked them and they all seem to be in ok condition. I'll post a video.

 

[getitright]

I've attached a video

 

[getitright]

Not sure why my videos aren't showing. I've inspected both the eject relay and the 5th score cam. They are in good condition with no broken wires, bent tabs or anything like that. I'm not sure what else could be the problem

 

[getitright]

, here's whats happening.
And this is the check of the contacts,

 

[RabidUrko]

I just love EM pinball tables.

 

[getitright]

I just love EM pinball tables.

Yea me too...when they work how they should.

 

[getitright]

So I cleaned the player unit and found some kind of lubricant and a stretched out spring. I worked everything back together and I still get the same problem with the 300 advance bonus not kicking the ball out after so many hits.

 

[pinballdaveh]

So I cleaned the player unit and found some kind of lubricant and a stretched out spring. I worked everything back together and I still get the same problem with the 300 advance bonus not kicking the ball out after so many hits.

With the machine reset, remove ball and lift and support playfield. Unplug score motor service switch. Manually close the hole switch temporarily. The eject relay should pull in and stay pulled in. Slowly manually turn the score motor cams and watch the scoring sequence. Do not allow the scoring coils to stay pulled in very long. A 180 degree rotation of the score motor will pulse the 100 point relay 3 times, eject the ball, and then the eject relay will release.
After the relay releases the score motor index cam motor run switch will bring the score motor back to a home position.
Does the eject relay stay pulled in and release properly when cam 5 switch opens?
Plug back in the score motor service switch plug,
Manually nudge cams off of the home position. Does the score motor complete a 180 rotation on its own consistently?

 

[getitright]

I did the testing and found out that the score motor does not return consistently to its home positions. Why or what would make it behave in this manor?

 

[getitright]

Looks pretty cooked to me

 

[getitright]

I tested ohms on it and had about 2.1 2.2 ohms. I cleaned and lightly lubed the metal gears inside and it works better but still has points of trouble when hitting the advance hole.

 

[getitright]

Any ideas, I'm stuck at that spot still.

 

[pinballdaveh]

Any ideas, I'm stuck at that spot still.

Thanks for the video
Sometimes the paper around the motor coil will burn off, not a problem if the motor still turns properly.
The 1st cam next to the motor is called the index cam. On this cam, switch D is the switch we’re interested in. Counting down from the top it will be the 4th & 5th switch blades that will close when the cam lifts the switch stack when the cam bumps off one of its 2 home positions.
The 2 switch blades will have orange-green & yellow wires connected.
Lightly file clean the switch points. If using anything other than a metal file, do not leave any grit residue on the blade points otherwise the switch will re-burn the points when the switch closes again. Inspect switch when closed for a strong connection. If adjustment is needed, a light down pressure on the short 4th blade is needed.
On the schematic score motor cam chart, the switch will be called motor run.
The score motor needs to return to a home position consistently, otherwise it will not allow other scoring to work correctly.
The 4th player score reel not resetting should be a minor switch cleaning and adjustment of its switch stack. Observe the operation of the reel next to it to see how the switches should react when at zero and not at zero positions of the reel. Clean and adjust if needed.