Recent content by litriSE

C13 replaced with 220uf 25V as per designed capacitance value (and went up in voltage). Tested and all good. Thanks for the quick responses. litriSE

Thank you very much Phipli. I'll put an order together and replace C13 with the designed value... as well as re-cap the rest of the board. litriSE

Thanks for the reference. litriSE

I think I'm getting close to the answer. It looks like filtering. Opinions welcomed.

What is C13's role in the circuit — is it a filter cap, coupling cap, or does it serve a timing function? Replacing with the same is an option and thank you for the quick response - I was hoping for a little more details on the function and if I could replace with a high quality capacitor that...

Hi all, I'm restoring a Macintosh SE with analog board 820-0206-B (630-0147, © 1986/87). Background: The machine booted fine once with a healthy chime and correct display. During that session I heard a brief fizzle, the screen dimmed, and the floppy icon became distorted. After power cycling...