Recent content by DoomyDoomer

The sync stripper isn't the cause of all the artifacts on screen, that's bad ram. The sync stripper is wired "correctly" according to the board (you really can't screw it up). I can't say if Helder's PCB is or isn't wired correctly but it appears to be based on the LM1881 datasheet. Here's the...

Interesting. I'm not sure I've ever noticed a minus sign on my multimeter for continuity. Usually it reads 1 for no continuity and then 000 for continuity. It's a Commercial Electric MAS830B, very inexpensive meter. I just ordered a nicer one that apparently does ttl logic as well as has the...

Hi All. I recently bought an MV1C from eBay. I had it up and running with a jamma harness and video out through Helder's RGB to Component board (based on Ace's design). While playing KOF98 (actual cart), the screen started showing artifacts and then finally failed to the typical Video Ram Error...