I can’t tell if resistor R52 is bad or not with a continuity test and since I don’t know the resistance, I can’t tell with that either but it comes up as OL
As the title suggests I have a Macintosh 512k that has been having a power issue for a few months that I’ve been trying to figure out. Whenever I turn the Mac on there is a constant ticking noise coming from the internal speaker which occasionally slightly changes pitch and turns into a sound...