Is it possible to change the payout % on a Universal?

[rilaw]

I'm just curious, is it possible?  After putting $150 in quarters through my Uni the other day, I won 20 quarters once, that's it!  Kinda sad...  I'm currently setup at 87.219%, can I just replace one of the chips??  Test #9 displays the following: 98550 90009 98554 91004 91200.

TIA

[uniman]

I'm just curious, is it possible?  After putting $150 in quarters through my Uni the other day, I won 20 quarters once, that's it!  Kinda sad...  I'm currently setup at 87.219%, can I just replace one of the chips??  Test #9 displays the following: 98550 90009 98554 91004 91200.

TIA

You would need to replace the game chip located at location A2. Your game is a 2-coin Double Jackpot with 7's and 3-bars. They also made it with 7's and 5-bars.
I checked my library of Uni chips and I don't have that game. They made four different chips for that game, the highest being 97% (8554-1001)
Maybe BlueRidge might have one?

[Busch]

Hallo rilaw.uniman.
Interesting question, I wanted to ask the same, although I need exactly the contrary change in PO. I have 14 old Universal slots here in Angola, 12 of them I don't use anymore (commercially) cos the PO % is way too high ( 96 to 98 %).
I calculate the values ( partly over millions of credits of the stats of the previous owner) cos that test switch does not work on even one of the machines, can they be disabled /enabled via a DIP setting or similar?
If I could buy somewhere more reasonable PO replacements, I would be smiling again!
How can I determine what chips I have in that position A2 in order to have a matching replacement?
Any ideas?

[rilaw]

Thanks again Uniman, I will have to ask him....

[uniman]

Hallo rilaw.uniman.
Interesting question, I wanted to ask the same, although I need exactly the contrary change in PO. I have 14 old Universal slots here in Angola, 12 of them I don't use anymore (commercially) cos the PO % is way too high ( 96 to 98 %).
I calculate the values ( partly over millions of credits of the stats of the previous owner) cos that test switch does not work on even one of the machines, can they be disabled /enabled via a DIP setting or similar?
If I could buy somewhere more reasonable PO replacements, I would be smiling again!
How can I determine what chips I have in that position A2 in order to have a matching replacement?
Any ideas?

Odd that your Test switches are not working.
Maybe you have the coin-in, coin-out, jackpot meters disconnected? The same connector for these meters also connect the Test switch.
You could see if the eprom on the boards are labeled.
If not, then you would need an eprom reader. On the bottom line of the code is the eprom number.

[jbshocks]

how do you tell what your payout is?

[uniman]

Interesting question. And I see only one answer. You need to get an eprom burner! 
Each game eprom has a specific virtual stop table that determines the payback %.
Displayed on the last line of code in the eprom is the calculated percent payback. But for the life of me I can't find how it could be displayed!!!!
What is usually done is the game eprom number is referenced to a table that tells what the percentage is, but I have no reference tables for Wonder Bar or Double Marquise.
If you press the green test button once it will display the 1-System chip # and it's   (94024)
                                                                                 2-version, the                  (0019 or 0024)
                                                                                 3-Game chip # and it's
                                                                                 4-version,
                                                                                 5-Support chip # and
                                                                                 6-version, and then the
                                                                                 7-credit limit.

Numbers 3 & 4 iare the numbers you want, each game chip version is a different percentage. So it would look like 94010-0003.
If I have a matching chip in my library I can tell you the percent payback.

[jbshocks]

The Double Marquis is 95016-0010  The wonder bar is 96016-0001.

[uniman]

The Double Marquis is 95016-0010  The wonder bar is 96016-0001.

Your Double Marquise is a 92.59% payback chip.
I don't have a matching Wonder Bar chip but the 0001 means that is the best percentage available for a 3-coin machine. Somewhere between 95-97%.

[jbshocks]

the wonder bar is a 2 coin machine.  Does it still mean it is a high payout?

[uniman]

the wonder bar is a 2 coin machine.  Does it still mean it is a high payout?

Opps, my mistake! 
That is the best for a 2-coin game.
But check please again, you posted your Wonder Bar as 96016, I have Wonder Bar as 96010.
Now here is something interesting, I have Total Impact as 96009A. The "A" means it is also used in another game, very common. But my South Africa listing has Total Impact as 96010 same as Wonder Bar. Total Impact looks like Wonder Bar's pay table so I think they are one in the same.
Here is info I have for Total Impact in both 2-coin and 3-coin. Notice the 2-coin chips go from 0001 to 0006 and then the 3-coin chips start at 0007 to 0012.

[bruno]

TOTAL IMPACT is a clone of WONDER BAR, for sure.
Uniman, what does mean JP Wt. (3 last columns) ? Jackpot...
Thanks   

[uniman]

TOTAL IMPACT is a clone of WONDER BAR, for sure.
Uniman, what does mean JP Wt. (3 last columns) ? Jackpot...
Thanks   

That is how many chances there are to hit the top award, second highest award and then third highest award.
With this game each reel has 256 virtual stops. So three reels is 256x256x256=16,777,216.
The top award symbol is probably available 4 times out of 256 on each reel. 4x4x4=64.

[jbshocks]

I don't think it is a clone unless clones may have subtle differences.   If they can and the strips line up the same as wonder bar then I should keep my eye on a total impact chip since it would have some cooler function.   Do you know if total impact supports nudge?  My wonder bar does not.  I double checked and it say 96016.  

[bruno]

So, for the Jackpot = 1 chance in 262,144
Thank you Uniman  

Jbshocks,
Total Impact is a clone of Wonder Bar but not of your type with Bar 5.
There are 2 types of Wonder Bar.
The picture below matches with Total Impact.

[uniman]

Thanks for the pic Jb. It reminded me, like Bruno said, that Wonder Bar was available with 5-BAR or Triple-Bar. So your 5-Bar version maybe the reason you have 96016, but let me dig a little further.

[jbshocks]

maybe that is the discrepancy in the game numbers

[jbshocks]

now I see you just said that

[uniman]

I don't think it is a clone unless clones may have subtle differences.   If they can and the strips line up the same as wonder bar then I should keep my eye on a total impact chip since it would have some cooler function.   Do you know if total impact supports nudge?  My wonder bar does not.  I double checked and it say 96016.  

The Total Impact chip does not support the random nudge. Any game where the wild symbol is wild under or above the payline will not have the nudge feature. And the nudge feature is only for mixed bars or a wild symbol with mixed bars.
My Wonder Bar 3-coin game chip is a 5-Bar game and is 96010-0008. Are you sure it isn't the missing LED on that board that's making it look like a 6?

[jbshocks]

retract my statement.  0 not 6.  I swear I looked at this 10 times

[StatFreak]

retract my statement.  0 not 6.  I swear I looked at this 10 times

Are your segments out or is your camera shutter set too fast? If it's the camera, use a shutter speed slower than the speed of your AC. Use 1/50" or slower for US, 1/40" or slower for 50Hz.

[jbshocks]

  1 segment is out on each of the 4 numbers in the credit meter it says 6010

[StatFreak]

1 segment is out on each of the 4 numbers in the credit meter it says 6010

Based on the conversation between you and Uniman, you're probably right – but you can't really be sure. The top horizontal segment is lit for the 6 in the leftmost position, so the digits in positions two and four could be either zeros or sixes.

If you're saying that the same (upper right vertical) segment is out on each of the four numbers, then the first digit could be an eight (8) and not a six. That would make the number either 6010 or 8010.

[jbshocks]

stat freak,  You are theoretically correct but I don't believe any of these start with an 8 so it is assumed to be a 6. 

[uniman]

retract my statement.  0 not 6.  I swear I looked at this 10 times

Are your segments out or is your camera shutter set too fast? If it's the camera, use a shutter speed slower than the speed of your AC. Use 1/50" or slower for US, 1/40" or slower for 50Hz.

FYI,
Stat, I sold him my best spare board and it had a defective transistor array removed causing the missing segment. Got it that way in a group buy. I also sent him a parts board and he will tackle trying to replace that array.
That's why I asked if he was misreading it.
Uni's start their chip number by year of creation. Ultra's were 94 thru 96. In South Africa they continued with the Sunrise Slot (next gen of Ultra) that went from 97 thru 00, but here in the states it's 94*** to 96***. So it is 96010.
Jim