After working on the reset issue from my Williams Jackpot i thought i had it solved. What happened is that the 10 point and 100 point from the first player was not resetting but after advise from Ronald i did replace the switches on these reels and that solved the issue.

The whole playfield is scoring all points in the correct way and the resets works fine but what still is happing is that when i hit the reset button and the credit unit goes 1 step down but then the strange thing happens, the player light goes from 1 to 2 players and this happens everytime.

So i hit the button 1 time and it goes to 2 player mode.

After the game-over the lights or the ball 5 and player is still burning and does not go out.

I have no clue what this could be so is there someone who had the same issue

I am at work at the moment but yes i do think so.

If i do a manual movement from 1 to 5 on the unit it goes to 5 ball easy and then there is an extra step and the ball light nr 5 is out.

When the machine is normally played and goes to game-over the light nr 5 ball and the player nr are still on, the ball count unit is not making the extra step.

Okay, i need to check that. It looks that the game-over relay works fine, i did not noticed it but had not a real detailed look at it because it worked okay i thought.
Will check when back from work.

I mean player nr 1 and so on. I think nr is typical Dutch, it means number.

Got it. The schematic above helped me in the direction needed. It was a mis alignement on the reset relay m.b switch what opens in circuit to replay relay and closes to run the scoremotor. I opened the gap a bit between the switch arms on the make side and that was the solution.

Thanks for all the help.

I did write that i did solve the problem. It has changed to i do know were the problem is.

The machine is still doing strange , one time he is resetting the correct way , now and then he is making the extra step on the coin unit ( so goes to player 2) and sometimes he stays in game over but are the ball and player lights on.

I have figured out that the game-over relay and the coin relay and reset relay are in relation with eachother.

My question is the following : Is there a possibilty that the switches on these relays are getting weaker in the period of time that they are used on the machine ( from 1971 )and that because of this the adjustement is mis aligning so the sequence of resetting is wrong why all these strange things are happening.
Or are maybe bad switch contacts an issue on this.

Hello Rolf,

I explain. When the machine is in Game-Over and i push the button to start a game the light for "one can play moves to two can play" and i only push the button ones . When i look in the cabinet i see the coin unit making one step.
What also is seen is that you see the coin relay activating and a split second later the reset relay is moving. There is a bit of a delay in the reset relay.

I will do the test tonight when back from work. I also will try to set up a GoPro camera and record what is happening ( hopefully it will work )

I have been working on the Jackpot and had made some photo's to show what is happening. I made a video but that is to large to upload.I do try to explain what i did.
On picture 1 i did turn the power on, so the game-over relay goes to game-over
On picture 2 i did hit the reset button so the lock relay pulls on
on picture 3 i did hit the left button so the lights go on. You see that the game-over ( most left ) burns, that ball 1 lit burns and player 1 lit burns.
On picture 4 i did hit the "start a new game" button and you see that the game-over lit is out and the lit 1 can play jumps to 2 can play and cannot add an extra player anymore. When i hit the button to add a player no response.

I am lost to be honest.

I do have a video (251 MB) but do not know how to upload

foto 1 (resized).JPG

foto 2 (resized).JPG

foto 3 (resized).JPG

foto 4 (resized).JPG

Hello Ronald,
Attached a picture from the reset relay

reset relay (resized).JPG

Hi Rolf,
When i put the game in game-over and all drum (16 ) are at zero, i do 00400 at the player drum and then do a restart the drum goes to zero but the player lit goes from 1 can play to 2 can play

Hi Rolf, Do you mean alone on the player 1 drum or also on the 2,3,4 player drums

I am getting mad and did try already a lot of things and what also is happening ( not all the time ) is that when i push the button to start a new game is that the credit unit is NOT making a step back (from 20 to 19 credits)
But when the credit is stepping back , the light from "1 can play" goes to "2 can play" .

I did replaced the credit unit with a complete cleaned credit real but it is still happening.

Hi Rolf,

I got your point and sound logic. I will check.

Hello Ronald,

I do not understand you. I have 2 thin poles on the copper looking wheel. Is this what you mean.

Hi Rolf,

Did a test.

Only on the player 1 drums, all others at zero.

When set at 00400 and hit the button to start a game the drum rotates 180 degrees and stops. The lit goes from 1 can play to 2 can play.
When set at 00500 and hit the button to start a game the drum rotates 360 degrees and stops. The lit goes from 1 can play to 2 can play.
When set at 00800 and hit the button to start a game the drum rotates 360 degrees and stops. The lit goes from 1 can play to 2 can play.

Hope that this helps with the analyse

Hi Rolf,

Thank you for the explanation, it is clear.
I do not have a test light but will make a set up and do the test. I will try to make a little movie from it when i have the set up made( if i can manage that ).
Hans

Hi Rolf,

I did a test with the volt measuring device as test unit instead of a lamp , when there was a signal the meter reacts. Your nr 9 ( in the diagram ) on the score motor seemed to be wrong and sometimes made contact and sometimes not.
I disasembled the package of switches from the score motor and checked the switch. I looked very good how much distance the switch blades had in comperison with the other switch blades and it had a very small distances and it looked that it sometimes made contact.

When i had the blades on a good distance from eachother the problem was solved and the Jackpot resets all drums to zero and does a not made an extra step.

What now only is going wrong when i start a new game and push the start new game button evrything goes well and the "1 can play"mode is on but when i hit the next time the button to get "2 can play"mode there is nothing happening. What can be this, it is the final issue to get it 100% working.

The playfield is working 100% , so happy to get so far with all help from you guys.

I will make a movie and see if it is possible to upload it somewhere to share

Hi Rolf,

No the replay unit is not stepping down always , it has the same issue of not being consequent . Sometimes it works and sometimes not but when it did work then i had ( 90% of the time ) the issue with the step up of the coin unit. Sometimes it worked and the coin unit did not step up . This is solved.

After the switch adjustment the coin unit works fine and i have no more the issue going to " 2 can play ".

Now i cannot go to " 2 or 3 or 4 can play " if i want to so i think it is in a connection with the replay counter, it looks it does not fire. Also when i start with "1 can play "

Hoi Ronald,

It is open now so it cannot step up that is what you mean i guess

Sorry for the late reply, but the Jackpot is working fine. It was a little adjustment from switches and this solved all problems . It works 100%.
Thanks everybody for the help.

Jackpot 1 (resized).jpeg