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JPM Thunderbirds, how to increase win percentage?


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#1 Wtfamidoing

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Posted 05 April 2021 - 09:41 AM

A friend has a JPM Thunderbirds machine which rarely pays out. Inside it has 8 DIL switches with ON another switches 1+2 and MORS above 6,7 + 8.
It has an input plug for a percentage key, what do the DIL switches do? And does he need a special piece of equipment to plug in to change the percentage? Thanks.

#2 captainhaddock

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Posted 06 April 2021 - 08:17 AM

A friend has a JPM Thunderbirds machine which rarely pays out. Inside it has 8 DIL switches with ON another switches 1+2 and MORS above 6,7 + 8.
It has an input plug for a percentage key, what do the DIL switches do? And does he need a special piece of equipment to plug in to change the percentage? Thanks.

Hi - here's the manual, thanks to spa for the scan.

 

Dave.
 

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#3 Wtfamidoing

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Posted 06 April 2021 - 11:53 AM

Got it, thanks that's really helpful




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