4 replies to this topic

[prestoneo]

I have two pairs of HI / LO game PROMs

 

Is it possible to get the PROM IC's from another machine and overwrite them?

 

I will put a picture below in case I'm talking rubbish...

 

The £1000 JP PROMs work fine, however the £250 JP gives better game play. Unfortunately the £250 JP ones no longer work. So I was looking to replace them...

 

Any ideas?

 

 

[fruitman69]

You cant overwrite ROMs as such, but they can be erased using UV light and then re programmed.

[prestoneo]

Thanks guys, so basically it is possible to re programme them with the right equipment

 

Is this a service that anybody on here does? Or does anybody have a contact who holds stock of replacements? 

[aaamusements]

The best way of erasing an EPROM is to introduce it to the UV light of a MIG welder strike. I have wiped many Eproms using this method with good results.

 

Never thought of that. Makes sense though. I might be worried about accidentally frying them though...

 

Thanks guys, so basically it is possible to re programme them with the right equipment
 
Is this a service that anybody on here does? Or does anybody have a contact who holds stock of replacements?

Yes. Worth asking Bazpeeb.