I picked up a couple of cps1 boards, and while one is fine the other is having some display issues. The most evident is upon powering it up the background is filled with dots. The game appears to play properly which is a plus.
I thought this may have been a rom issue, as it had a set of burnt Roms for the hyper-fighting edition. I since procured an original set of Capcom CE roms. I put them in, and the problem is still there. I also removed all socketed chips, washed and dried the board, and yet no fix.
Upon further inspection of he board someone soldered a cap across chip 10G’s pins 7 & 9. Is this original, or modded? See the first image at the top of the post.
Lastly, I noticed when I coin up the Player 1 reads as qP instead of 1P and START has an ‘n’ on the end....?
So I’m thinking the problem resides on board A. From there, I need someone else’s experience to troubleshoot further. Sorry, I don’t have an identical board to pull from to test.
I thought this may have been a rom issue, as it had a set of burnt Roms for the hyper-fighting edition. I since procured an original set of Capcom CE roms. I put them in, and the problem is still there. I also removed all socketed chips, washed and dried the board, and yet no fix.
Upon further inspection of he board someone soldered a cap across chip 10G’s pins 7 & 9. Is this original, or modded? See the first image at the top of the post.
Lastly, I noticed when I coin up the Player 1 reads as qP instead of 1P and START has an ‘n’ on the end....?
So I’m thinking the problem resides on board A. From there, I need someone else’s experience to troubleshoot further. Sorry, I don’t have an identical board to pull from to test.
