Reference from drewcifer's web site for any here that didn't see what was done a few months earlier.
--- 12.28.10 MC Ewe.
We had the same situation going on with the MCU in Heavy Unit. The doc's images were good, but not amazing. We typed them in, but asked for higher magnification images, knowing there may be some issues. Just the other day, the Doc sent us those higher resolution images. Phil typed in the images (I didn't finish my typing), fixed a couple of bits we had improperly typed with the lower-resolution images, and hooked up the MCU. ----
>From the rom labels it seems to have some pretty big changes. Lots of them are labeled > differently from current sets in MAME, not just 2 as you might expect. I don't know > what all the differences are yet.
Maybe a bug fix/revision version?
o/t:
A recent purchase of Chicago Coin TV Pin Game paperwork included logic schematics for Chicago Coin TV Pin Game as well. It means maybe a slightly better chance of these types of non-cpu games might have a chance of being emulated in the future. I am not sure if any paperwork is online for either the Exidy version or Chicago Coin version. Chicago Coin version is now accounted for. TV Pin Game uses a chime for some sound effects as what parts catalog states. I only recall seeing Exidy TV Pinball myself...way back then...and never played TV Pinball. The game wasn't of any interest to me back then compared to say Nintendo WG. ;-)