I acquired a Williams "Earthshaker!" pinball machine several years ago. It came with the version
L-1 ROM installed. I noticed that sometimes balls would get stuck in the shelter kick-back-up mechanism for a bit (it seemed it didn't kick a first ball up fast enough if a second ball entered the shelter). This was fixed when I upgraded to ROM
I'm now interested in changing to to ROM
F-1 which removes a less-than-completely-family-friendly word so I can feel more comfortable tinkering with the machine with my kids. But I can't tell if
F-1 is the same as
L-3 with just a word removed, or if it is based on a prior version and has some of the older bugs. Is there a changelog available anywhere, or anybody with experience, who can let me know what the differences are between the
L-3 version and the
F-1 version? Or will I just need to buy the chip with the F-1 version and try it out?