Recent content by Hugotronics

This part of the board drives the soft power circuit. Any broken trace is a problem. To test a trace you suspect is cut without following it to the end, you can simply scrape it slightly to expose the copper.

Broken traces around UE13 (HC132), or just a bad chip.https://oldcrap.org/wp-content/uploads/2023/04/apple-iici-schematics-startup-circuit.gif

There are some electrolytic capacitors that you should definitely replace, they're probably leaking.