Post #3629580
2026-07-06 14:13 UTC
One of this afternoon’s side quests is to find a circuit diagram and troubleshooting guide to this old Mac IIvx power supply, which appears to be completely dead. It’s a Delta LR57908C (or SMP-120EB), Apple part 614-0009.
Replies (1)
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@allan@social.doubleelforbes.co.uk 2026-07-06 14:29
@gulfie@mastodonapp.uk - I never saw a circuit diagram yet but I found a neat list of modern capacitors and a noctua fan replacement. There has to be some slim chance that a refurb saves you a troubleshoot. https://68kmla.org/bb/threads/smp-120eb-recap-list.52169/