Quoted from noflip95:I checked the archive again and tested the files, they are working fine (on virtual VPinMame, but also on a real SYS-80B board). Having an original board doesnt' care. If that doesn't work on your pinball machine, then there is definitely a hardware problem somewhere.
Perhaps there is a malicious problem with the piggyback socket, which wouldn't be surprising, since it's very common on 80B.
The section of the program which concerns the bookeeping is located in the PROM1 (2764) but this one has not been modified. With the exception of the checksums at the end, which you can easily verify by comparing files.
First suggestion: you can test the PROM2 (2716) alone. Keep the working 2764 on the piggyback, and install only the new 2716 (or 2816) on PROM2.
This will work, since there is no difference between the old and the new PROM1. You should therefore have normal operation for bookeeping.
The only change is that when you run TEST mode and check memories, you will get an error message on checksums. But that's it, and that doesn't stop the game from working:
[quoted image]
Second suggestion: test the 2864 chip with the old version. Keep the old 2716 on the PROM2 socket, program the old program into the 2864 and put this one on the piggyback. This will allow to check, if the old program still works with a new component installed.
Sometimes, the SYS80-B board work fine with an old component, but when replacing this one by a new, the board hang.
Because the piggyback contacts are questionable and bad, and depending on the power consumed, or the output level of the pins is slightly different, it can sometimes work and other times not.
By putting a 2864 but with the old program, you can check that changing the EPROM / EEPROM model does not interfere with the hardware.
First, Let me say a giant thank you for all the work you've done on all the Gottlieb machines to upgrade and enhance them. Everyone can tell that you love these old machines and have a passion for improving them. You've made my Haunted House a better machine and I am very happy with the latest freeplay ROM set in my Monte Carlo.
It sounds like you have a really cool bench test setup. However that single PROM adapter you mention is a slight difference from what we use on the Monte Carlo. Something odd seems to be going on and maybe there is a slim chance this could be a difference in the test jigs.
The only reason I bring this up is that all your prior versions are perfect. They run without any issues. In fact I played a few games on you latest freeplay version this evening. First couple of games were rough (my fault) but have a good game before calling it a night.
The patch to address the 10 million scoring for some reason didn't work for me and a few others. So, while we can try burning new ROM's again can you think of any other options? What else could cause the difference in the emulation and what we're seeing in the game?
Personally I am fine with the original 10 million shot and will probably keep your existing freeplay version in the game. I'd just like to help see this get fixed since others really want to have the new scoring in the game.