My beloved SE/30 has finally died

[MikMac]

I have my original Macintosh SE/30 purchased in 1991.  It has lasted a long time.  A few years back I re-capped it and added a new SCSI drive.  It was working fine until today.  I powered it on and nothing.   It seems the fan is the only thing that comes on.  

Any idea where i should start in terms of finding the failed component?

 

[unity]

If just the dan comes up, I wold look at the power supply/sweep board first. Money on the power supply as at least the drive should spin up too. The nice thing is that the SE power supply works. Do you have an SE laying around?

 

[BadGoldEagle]

Apparently - according to MikMac's signature at least - he has four SEs and two SE/30s. Swapping parts between machines sure won't be a problem. 

Yep, do as unity says, and swap that PSU with a known good one. I'm sure it'll fire back up as good as new. If the problem appeared right out of the blue, I'd have money on the PSU too. uniserver complained a couple of years ago about them failing at an alarming rate...

You said you recapped it but did you just do the logic board or did you do the analog board and psu too? Mine's had its logic board and psu recapped and sometimes (about 3 or 4 times an hour) the display wambles about. I know I'll have to do the Analog board sooner or later.

That's just to prove that most of the time, recapping just the logic board isn't enough...  Sure, it saves the Mac from that electrolytic acid, but other components can and will fail too.