Hi,
We can fix this. I believe you are handy enough to fix the power supply of this masterpiece.
I had 100% the same problem and finally figured it out. The problem is with one of the capacitors, and after lots of trial and error, and asking for advice, here it is: The capacitor is "
C16" - a small blue electrolytic -
100uf 16v. It is in the center of the power supply board partially hidden by a black heat sink and the large silver chunk of metal.
Swapped for a 25v 100uf I had lying around and she works like a charm now.
Here's how it looked like on mine: