Re: iMac 24 PSU LITEON PA-3241-02A1 250W

Yeah house is 20A and actually part of that circuit failed completely. The breaker tested good, but a several wall outlets have no power since.
After that I tried another outlet. Seems like the breaker tripped there also, but this is going on three years ago, the PSU was most definate dead.
Toasty, I found the UCC caps, but I'm not finding any MATs. Would you point me to them?

Re: iMac 24 PSU LITEON PA-3241-02A1 250W

Thank you very much I found these capacitors in post 81 in this thread. Should I only replace these?

3 - 2200/16 - UCC KY
1 - 2200/16 - UCC KZH
2 - 470/50 - MAT FM

What should I do to investigate the circuit where the fuse don't blow?

Re: iMac 24 PSU LITEON PA-3241-02A1 250W

Hi Toasty

I have been reading through the thread and gaining knowledge on this psu. I think I'm going to replace all the caps. its an imac 24 with the Liteon psu. About three years ago it shut down and began tripping the circuit breaker in the house. I pulled the psu and connected it to the mains power only and tripped the breaker. Last month i tested the transistors and diodes, found them all good. So i ordered a working one on ebay, but tried the psu once more and after all this time, it was working again which was...

Re: New Members - please post your introductions here

Hi Paul here. I got a 300 in 1 electronics kit for Christmas as a kid and loved it. I have enjoyed tinkering to fix my own electronics since then. I'm here first to figure out how to fix my iMac power supply, and I plan on keeping this site in close reach, because I have read enough so far that i am convinced that it will be a valuable resource. Thank for creating it!