Hi everyone, I just recently got a TKG4-UP Nintendo Donkey Kong and I love it! It played wonderfully all weekend. However, while during game play, the screen would "twitch" for a split sec on. This behavior would happen once every 3-4 minutes.
Monday I had some friends over and during game play the game just started freaking out with a bunch of garbage on the screen and it kept making "game sounds", I think it was the sound when mario dies. I turned the game off and tried starting it back up, and it still does the same "freak out stuff" and never gets back to a playable game.
So far I have reseated all of the eproms and wired connectors on the game board. I have also tested the power supply going to the game board and those voltages test good. I am also getting correct voltage to pin 11 of my Z80.
At this point I am unsure of what to do or what to check. Does anyone else have any ideas on what it could be? Any help at all and I would be most appreciative.
Thanks,
Chuck
Monday I had some friends over and during game play the game just started freaking out with a bunch of garbage on the screen and it kept making "game sounds", I think it was the sound when mario dies. I turned the game off and tried starting it back up, and it still does the same "freak out stuff" and never gets back to a playable game.
So far I have reseated all of the eproms and wired connectors on the game board. I have also tested the power supply going to the game board and those voltages test good. I am also getting correct voltage to pin 11 of my Z80.
At this point I am unsure of what to do or what to check. Does anyone else have any ideas on what it could be? Any help at all and I would be most appreciative.
Thanks,
Chuck


