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Florida Arcade and Pinball Collectors => Technical Questions and Help => Topic started by: busa32927 on July 12, 2025, 09:23:01 PM

Title: Data East Simpsons not holding settings
Post by: busa32927 on July 12, 2025, 09:23:01 PM

hi all

I am working on a Data East simpsons.  The game isnt holding settings.  I checked the batteries and they are good.  not sure what else to check.  Anyone have any ideas?

Thanks

Title: Re: Data East Simpsons not holding settings
Post by: FUNWIZ on July 13, 2025, 05:48:03 AM

Measure from the ground braid on the machine to the positive end of each battery and the last one should read 4.5 V or higher. If you’re not getting that reading, then one of the batteries has a corroded terminal on it and you need to clean it. I would strongly suggest you get the Eram put in, so you don’t have to worry about replacing batteries again. 

Title: Re: Data East Simpsons not holding settings
Post by: HammysHangout ( Hammy ) on July 13, 2025, 08:58:26 PM

check the voltage on the ram when the game is off, you probably have a failed diode.

Title: Re: Data East Simpsons not holding settings
Post by: busa32927 on July 14, 2025, 02:56:08 PM

Thanks fellas. Gonna relocate the battery pack as it is needed. Then check the voltages. Thanks for the help

Title: Re: Data East Simpsons not holding settings
Post by: busa32927 on July 15, 2025, 10:16:16 AM

New battery pack fixed it. Thanks again.

Title: Re: Data East Simpsons not holding settings
Post by: k7 on July 16, 2025, 02:20:37 PM

Quote from: busa32927 on July 15, 2025, 10:16:16 AM

New battery pack fixed it. Thanks again.

ya, battery packs look good, but are failed more oftan than not...it's the duracell effect.

cheap easy-to-solder fix with a new replacement.