Which gates are damaged? The 74F04 is resonating with a higher frequency overtone from the crystal. I'm guessing that C37 has decreased in value, it should be 33pF it's possible the value has diminished over 42 years?Fixed, found fault IC 43, 74s04. And since I didn't have one, I put the 74F04 on and it started. Well, I will replace it with S, because it does not always start and the image flickers slightly.
Statistics: Posted by maniacminer — Wed Apr 24, 2024 9:48 pm