Hey RG,
I'd would like to only suggest;
Take that board out and send it up to me, I'm only 70 miles up the road, or else send the whole complete unit up to me.
There is more than just a few components in there that have suffered, and soon they will become catastrophist candidates for definite future failure, they are going to do so very soon.
They will need a thorough check out, as that whole board essentially, necessarily does need some in-depth attention. Now, I can also identify a melt on the side of that inductor, and given that there is some timing delay to fire up, lets go time, then I would be confident that that individual integrated circuit and the rest needs repaired and re-calibrated.
This unit is getting much older and has taken a piece of electrical abuse. Very quite possibly by someone who didn’t understand it’s limitations and never considered or realized it’s true purpose or intentions.
If you have the hands, patience, time, knowledge, desire and above all, the vigour to go out and source which can be difficult and buy the best quality components from reputable, not ebay garb dealers, plus add a few up-grade mods in the circuits because they need it it in this day and age with the amount of garbage/hash on the AC line, then go for it.
But I can warn you, and I hate sounding like your grand mother, a piece of equipment like this that supply's the rest of your cherished equipment must be truly bullet proof, or else.
Unless MJMP would like to talk you through this or take it on, he is the best around, I dunno, I cant speak for him, but he knows his stuff for sure.
I originally said that this is nail-able, and that’s true, but we could be here all year.
I’m finished posting investigation, obvious and possible causes on this one. I think it needs to go in to a tech.
PM me if you want to do so.
Cheers RG.
Rusty.