First post, by keenerb
With the system on I don't get any frequency readings across the two legs of the oscillator, and my meter can read up to 60mhz. Is that more or less the proper way to read frequency on an oscillator, just directly across the legs?
Basically a short circuit due to battery corrosion burnt the 12v power connector completely through the motherboard. As far as I can tell I've successfully repaired the damage but previously it would boot to a "floppy drive failure" message; now I get nothing on screen.
I have spent hours and hours checking for shorts and bad traces and everything looks fine, I get 12v, 5v where I expect to get 12v, 5v.
I suspect one of the oscillators that was submerged in vinegar during my cleanup attempts might have gone bad.
Also, on the bottom oscillator in this photo, do you think that's 16.000 or 76.000 with part of the 7 gone?