Hi all,
So my super punchout is working about 99% but one last bug I have is when the opponent goes down, as he is falling there are jailbars through his character (with the exception of Vodka Drunkenski).
Today I checked all the eproms at 2R, 2T, 2U, 2V, 3R, 3T, 3U, 3V, 4R, 4T, and 4U and they all checked out ok. After testing the game again, it got a little better and a little different (Dragon Chan has some jailbars when he begins his flying kick also) so I'm thinking it's a socket issue.
Now, without desoldering all 12 sockets and replacing them, how do I accurately find out which socket(s) are responsible for this?
Here is a snippet of the schematic with a coincidental comment on one of the connections, labeled as CMP-UP and CMP-DWN. I know that the CMP section are the opponent roms (champion) so I believe this is the issue that is occuring
is that correct?
Now, maybe I'm blind, but I can't see further on in the schematic where the CMP DW signal goes to the eproms. It does go to: 5W pin 11, and then pin 12 of 5W is connected to 5B a LS138 pin 10.
So I guess I'm confused as to why reseating the CMP eproms "helped out" the issue and that CMP-DW signal doesn't go to the eproms? Or am I incorrect? If so, how do I figure out exactly which eprom is responsible per the schematic?