Main > Monitor/Video Forum
What would cause both Horizontal and Vertical Deflection to Stop Working?
Ken Layton:
That 7404 sync inverter trick is an old Star Tech Journal article and it's often reprinted in the Romstar conversion kit manuals like Black Tiger and Sky Shark.
dabone:
It inverts the sync you give it, so negative sync from the game/jpac/avga/whatever becomes positive sync for your monitor.
Later,
dabone
Witchboard:
Thanks guys.
Ken Layton:
Yup, a 7404 or 74LS04 is a hex inverter chip. Very common part.
Witchboard:
Yeah, cheap too. ^_^ Thanks again guys.