Ive already done a reflow on the whole board years ago, and everything still looks good and shiny. Also replaced 3.9uf cap at C1.. Yoke connector is good too...
512ke has been perfect for 10 years, now this funkiness out of nowhere…. Is anybody able to give me a starting point? And what do the neon lights do? I’ve never seen them lit up before….
I assume it’s diverting current from somewhere?
I ended up replacing my PB520 PSU with one from a IBM laptop, and spliced the old 520 cable onto it... I kept the original PSU, but there's to much magic smoke inside for me to bother with... It's far smarter for me, to use a modern power supply..
New one is IBM 16v 4.5A...
I’m going to guess 5V, because there’s no regulator.. I love small cases like this, because you can put a SCSI2SD in there, and power it from the SCSI buss.... As a matter of fact, if ya decide you don’t want it, lemme know what you’d want for it.