I was finishing up my led conversion and installation of color dmd and led ocd boards.
Machine was working great, then I noticed the color dmd went out. Strange...looked and saw the 12v secondary fuse blew. (F116)
Replaced it, then I got this wacky behavior on startup...see video:
I did the basic stuff, visually checking fuses, reseating connectors...all fuses seemed ok (although I didn’t check continuity with my dmm). No change.
I have done zero board work. I replaced U18 with a fresh ROM from Matt because it was causing an error on startup, which cleared once it was replaced. The replaced chip was an EEPROM.
U6 is also an EEPROM. I have a replacement from Matt. Could it be this would fix it?
Just checking here first for any bright ideas because I don’t want to fry any chips.
A basic shot of the backbox inside is below...its busy at the bottom because of the 2 Ocd boards. Game was playing great for a dozen games or more with this configuration.