I recently picked up an excellent-looking Beseler 45 Universal VC head for a decent price. The seller advertised it as working correctly. I don't have a manual (yet--ordered one from KHB), and I've not used one of this exact type before, so I'm not sure exactly what to expect. This is what happens with I turn it on:

https://www.youtube.com/watch?v=kUWv...ature=youtu.be

The fans spin, I get some random partial digits on the displays, I get a little blue and a lot of green light (looks like maybe a self test), and there's an extended beep.

Given the condition, I'd like to keep it if it's economically repairable. I'm reasonably electronics-proficient, but I need some pointers.

Ideas? Sources of better information?

Thanks in advance.