Fix that Power Supply, or bin it! - Part 1

RE: Fix that Power Supply, or bin it! - Part 1

genebren — Wed, 13 May 2020 22:25:38 GMT

Great start on your quest to fix this power supply. Getting to know what you are facing is the first step and it looks like you did a great job at that!

Good luck as you dig deeper and hopefully fix and fix the problem.

RE: Fix that Power Supply, or bin it! - Part 1

three-phase — Wed, 13 May 2020 19:14:48 GMT

Great article, look forward to the second part.

Kind regards

RE: Fix that Power Supply, or bin it! - Part 1

mp2100 — Wed, 13 May 2020 01:03:41 GMT

Very helpful information. Today I was disassembling a power supply and trying to learn on my own what the components are. I can go back to compare what you have documented here. And hopefully learn more.

RE: Fix that Power Supply, or bin it! - Part 1

DAB — Tue, 12 May 2020 18:29:34 GMT

Very nice walkthrough of the power supply circuit.

Well done.

DAB

RE: Fix that Power Supply, or bin it! - Part 1

dubbie — Tue, 12 May 2020 10:22:11 GMT

I too used to 'maintain' old systems that no longer worked with the aim of repairing or (more likely!) salvaging parts from. Also like you , over the years accumulated several of these. However, unlike you, one day I just decided that it was unrealistic of me to think that I would ever repair any of them, so I dumped the lot. I will admit to a great sense of relief that I was no longer under any pressure to fix 'things'. Now, if anything breaks I dump it automatically and get a new one. It might not be that eco-friendly but I generally find that most equipment is not designed to be maintained or repaired any more so I've stopped trying.

I do enjoy watching other people fix things though. All the interest, none of the effort!

Dubbie

RE: Fix that Power Supply, or bin it! - Part 1

Andrew J — Tue, 12 May 2020 08:57:38 GMT

Really interesting. Like John, hope to learn a bit more about SMPS as I seem to have developed a bit of a fondness for them.

RE: Fix that Power Supply, or bin it! - Part 1

jw0752 — Tue, 12 May 2020 01:41:32 GMT

Thanks for your post. This may be a fix for you but for me it is a bit of a tutorial that may answer a few questions on SMPS operation.

John