Williams Grand Prix spinner scoring

There are two contacts on each spinner relay, one for 100 and one for 1000. First make sure they're gapped properly.

Those contacts are in turn powered via the bonus steppers. At the top position (50k) the power goes to the 1000 point contact, ad the rest it goes to the 100.

Are you sure the game is scoring 1000 and not 1100 ?

#3 5 years ago

HOW

HowardR

Pinside member

Boulder, CO

7y 78,050 6,260

OP
Quoted from pinballman3:
what is suppose to make the spinners score 100 and then change to 1000 after bonus gets to 50,000? Would it be a switch on the bonus unit maybe

The 100/1000 scoring for the spinners is controlled by the Left & Right Bonus unit disks.

Pinball (resized).png

#4 5 years ago

KGA

pinballman3

Pinside member

Thanks zacaj It is scoring 1000. I just went through all of the score reels scoring manually to make sure the next reel does not move when it is not suppose to by scoring manually. I just watched it score 1000 when it should score 100. It is definitely scoring 1000.

#5 5 years ago

KGA

pinballman3

Pinside member

HowardR, thanks. How does the bonus unit determine to send the signal down the 100 or the 1000 wire?

#6 5 years ago

ZAC

zacaj

See the 2s and 1 contacts on the diagram. 1 is 1000, 2 is 100

#7 5 years ago

KGA

pinballman3

Pinside member

Ok i checked this more carefully. The left side spinner always scores like it should. Scores 100 until the bonus gets to be 50,000 then it scores 1000. The right bonus always scores 1000. If i manually activate the right spinner relay at the start of the game it scores 1000 always. The gaps on the right spinner relay switches look good. Would wires being in the wrong place on the right bonus unit switches possibly cause this? When i first started working on this machine 5 of the wires on the right bonus unit switches where just hanging down not soldered at all. They are so faded you can not tell some of there colors. I had to mess with them to finally get the right bonus to work right. It is like the bonus unit is always putting out the 1000 signal. Any further suggestions on how to test this? Thanks

#8 5 years ago

HOW

HowardR

Pinside member

Boulder, CO

7y 78,050 6,260

OP
Quoted from pinballman3:
How does the bonus unit determine to send the signal down the 100 or the 1000 wire?

There should be a yellow wire (or wires) connected to the Bonus unit frame. The wiper arm labelled "(2) Grounded Wipers" contacts the rivets labelled "1" and "2" to complete the circuit for 100 or 1000.

OP
Quoted from pinballman3:
Would wires being in the wrong place on the right bonus unit switches possibly cause this?

Yes

#9 5 years ago

KGA

pinballman3

Pinside member

Any suggestions on how to figure out what wires could be wrong on the switches? Dang I thought i finally had those wires figured out. Everything else works 100%. There is nothing that really shows what wire goes to what switch. The wires being so faded does not help. The only wire that shows its color is the green/black one. Thanks

#10 5 years ago

ZAC

zacaj

All the wire colors are listed on the diagram Howard posted. Relay wiring is listed with colors in the manual. If you can't tell colors, check continuity from the ends you need to connect to the relays they should go to

#11 5 years ago

KGA

pinballman3

Pinside member

The wires to the switches on the right bonus unit is where Howard said if they where not right it could cause the 1000 score problem. The pic is the switches on the right bonus unit I was asking if the wires on it where not right could it make the spinner score 1000 when it should be scoring 100. That is what it looks like right now. How would the wires on these switches make it score 1000 instead of 100?

20190215_135657 (resized).jpg

#12 5 years ago

KGA

pinballman3

Pinside member

Ok i just realized something. The right spinner scores 1000 from start of ball until you reach 50,000 then it scores 100 its backward. I am so confused on the bonus units. The wiring on the bonus units are nothing like the manual shows. Any chance there where 2 different schematics/manuals for this game. Here is a pic of my right bonus unit wiring. None of the wiring is right on either bonus unit compared to the manual. Is it going to be as easy as switching the yellow/red striped wire with the red/gold wire next to it? The left bonus unit wires are all wrong also and everything on it works. Thanks

20190215_141716 (resized).jpg

20190215_142950 (resized).jpg

#13 5 years ago

KGA

pinballman3

Pinside member

Actually it looks like all of the wires might be right except for the first 3. I looked at the few wires and freaked out. Like i said i was confused.This game must have been this way from the factory. Scoring wrong on the right spinner. The solder looks factory. Should I just move those 3 wires around like manual shows? I just want to make sure I won't mess something up bad. Thanks

#14 5 years ago

ZAC

zacaj

it does seem like those three wires are just out of order. At worst you'll blow a lamp, nothing bad. Give it a try.

#15 5 years ago

KGA

pinballman3

Pinside member

The wires come out of the loom that way so i would say it has been that way since factory. From what i have seen usually the wires come out of the loom in the order they are soldered on at the factory. I will give it a try Tuesday when I get back to town. Thanks

#16 5 years ago

KGA

pinballman3

Pinside member

I moved those 3 wires and soldered them like the factory shows. The scoring on the right spinner now works like it should. The machine is 100% now. Thanks for the help.

2 months later

#17 4 years ago

???

LyonsRonnie1

Pinside member

Rock Hill, SC

9y 34,550 662

Instead of making an entirely new post, I thought I'd add on here, since it's a simple enough question, has anybody else had an issue where if you really slam that spinner, you get TOO MANY points? It's usually at the 9th position, so if for instance I've got it up to 1000, and my score is at 5000, if I hit that sucker hard sometimes it'll very quickly end up at 30,000. I think it's adding an extra 10,000 in there when it rolls over from 9,000 to 10,000... so the score will go something like 5,000,6,000, 7,000, 8,000, 9,000, 20,000 , 21,000 etc. but it's so quick you can barely see it. I've looked at the 9th position switches and it seems to do it on all four players.

So my question is, is that just something these do sometimes since it scores so quick if you really hit the spinner hard?

#18 4 years ago

ZAC

zacaj

Quoted from LyonsRonnie1:
Instead of making an entirely new post, I thought I'd add on here, since it's a simple enough question, has anybody else had an issue where if you really slam that spinner, you get TOO MANY points? It's usually at the 9th position, so if for instance I've got it up to 1000, and my score is at 5000, if I hit that sucker hard sometimes it'll very quickly end up at 30,000. I think it's adding an extra 10,000 in there when it rolls over from 9,000 to 10,000... so the score will go something like 5,000,6,000, 7,000, 8,000, 9,000, 20,000 , 21,000 etc. but it's so quick you can barely see it. I've looked at the 9th position switches and it seems to do it on all four players.
So my question is, is that just something these do sometimes since it scores so quick if you really hit the spinner hard?

When the 1k reel is on the 9th position and the spinner switch closes, it energizes the 10k reel and the 1k. If the spinner switch closes again before the 1k 9th position switch opens, but the 10k reel has already clicked, it will click the 10k again. It may be possible your 1k 9th pos switch is staying closed too long, or your 1k reel is a bit gummed up/etc and not incrementing fast enough

#19 4 years ago

???

LyonsRonnie1

Pinside member

Rock Hill, SC

9y 34,550 662

Quoted from zacaj:
When the 1k reel is on the 9th position and the spinner switch closes, it energizes the 10k reel and the 1k. If the spinner switch closes again before the 1k 9th position switch opens, but the 10k reel has already clicked, it will click the 10k again. It may be possible your 1k 9th pos switch is staying closed too long, or your 1k reel is a bit gummed up/etc and not incrementing fast enough

That's what I thought too, but like I mentioned it does it on all four players... and with the speed of the game, I'm wondering if that's common to Grand Prix's since those spinners get hit so hard with the DC flippers....

#20 4 years ago

ZAC

zacaj