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Old 10th Oct 2021, 7:12 pm   #20
Join Date: Oct 2021
Location: Edinburgh, Scotland, UK
Posts: 136
Default Re: Commodore PET 2001 voltage regulators

I've just checked the resistance of the diodes, and all three are showing three figures when testing; around 620 for bottom four, and around 580 for one near capacitor.

I checked the rivet you circled, and it does indeed have continuity with the thicj track. I also tested the continuity from pin 2 (JP8) on the back of the board to the two +5v regulators (and tracks from them) and it all seemed okay.

Last edited by retromit; 10th Oct 2021 at 7:42 pm.
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