68kMLA Classic Interface

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Repairing a LC PSU
I have bought a cheap complete setup, but the logic Board was bombed.

The PSU was not doing much, even with new caps. So removed components to clean below and put everything back. Still nothing.

Then removed and replaced the TL431, and this time the PSU worked.

Second time i fix one of those with the same component.

Cap juice had shorted it I think.


Posted by: bibilit on 2025-10-04 04:19:07
I have not encountered that problem, but I appreciate your write up. I will remember to check this in the future. Thank you.

Posted by: David Cook on 2025-10-04 06:05:44
Is this TDK or what brand PSU?

Posted by: Joopmac on 2025-10-04 08:00:53
TDK

Posted by: bibilit on 2025-10-04 14:08:09