I have an Apple IIc here with a dead Voltage Converter. (Not the external PSU, the internal card that slots into an edge connector).
The system is not booting with it in, but thanks to having a spare, I know the problem is the Voltage Converter, not the system itself.
I'm trying to find details (Pinouts etc etc) on this unit so I can start troubleshooting it.
It's not the same one as in the SAM's guide to the Apple IIc, to make things difficult.
I'd even settle for just a pinout of that edge connector...
The capacitors look fine. Diodes look OK. (The only one that looked a bit dodgy, D10 tested fine out of circuit). Not sure what I can test without having some idea of what voltages to inject where, so I can start probing around to see what is going on.
Cheers and thanks in advance!