Scucci
Well-known member
Got a PROM here where everything seems to be working right... all inputs are pulsing like crazy, but outputs at 10 and 11 (Q1 and Q2) are just pegged high.
This is for the (not)SBCLK1 and (not)SBCLK2... brain fart, and I don't remember how to type NOTs in text. lol You get the picture.
Is there ANY combination of inputs that would peg JUST those two outputs high like that? ... Seems like a reeeaaaaalllly long shot, but I just have to ask.
I'm okay with most logic ICs, but when you get to the PROMs and stuff like that... if there's not a logic diagram in my big yellow book, then I'm more or less lost.
I've compared those outputs to the same chip, same location, on a working board and they're pulsing like crazy.
This is for the (not)SBCLK1 and (not)SBCLK2... brain fart, and I don't remember how to type NOTs in text. lol You get the picture.
Is there ANY combination of inputs that would peg JUST those two outputs high like that? ... Seems like a reeeaaaaalllly long shot, but I just have to ask.
I'm okay with most logic ICs, but when you get to the PROMs and stuff like that... if there's not a logic diagram in my big yellow book, then I'm more or less lost.
I've compared those outputs to the same chip, same location, on a working board and they're pulsing like crazy.
