6 replies to this topic

[kylie_o]

i have a 25th anniversary jpm monopoly thats paying out at 87% and winning is losing the fun!! im a complete novice with these machines and all the wires and switches mean nothing to me!
im ready to throw it out the window!!!
any ideas?

[Osel]

Purchase a percentage key and set it to 70%

[Taylor525]

...or find out if your machine already has a multi-switch percentage key attacted. If so, you will just need the code... can be found on the board inside the machine, if not then do as above, buy one.

[Andy2003]

Over at Mecca they have some old manuals that have been scanned (in resource section), if you download 1 manual that can help, it doesn't matter as long as it's jpm as Impact technology has been around for years.. I don't think you can change the percentage on it via DIL switches you have to buy a percentage key (which is near the dil switches)... If you look at the main board and see a percentage key maybe removing it might change it to a lower %? i'm not sure if the machine will work or not... i know barcrests are pretty easy to mess about with but not sure on impact even though i've got a JPM machine myself... I hope this helps..

[starman316]

I have the percentage dil switch on mine, and am trying to find a manual/ find what position to switch these to. I find I am winning the jackpot too often..

[fruitsnappa]

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Attached Files

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[nails]

as i recall with older jpm machines, open the door and the percentage flashes on the screen i.e 87.80 or 8780

the dot in the middle is quite significant, it tells you if its under or over paid its %, anyway, if you have a variable dil, try moving a pin up/down and look at the alpha display, you should see it change i.e 72.00

hope that helps

'fruitsnappa', on 23 Jan 2012 - 12:22 PM, said:

.

if you`ve not got one, im sure ive got one here you can have for free