I am a total rookie when it comes to working on Stern pinball machines. I would like to change audio eproms on Sopranos from Italian to English. If I understand correctly all the eproms (CPU, display and audio) should be the same version. Can I download the English Pinmame eproms (version 5.0) from IPDB, burn them on eproms and replace the Italian ones? I would also like to install the NVRAM chip on the CPU board. Do I just need to replace the chip at U212 with Ramtron FM1608?
Thank you for your help.