Hi there,
I have been having some trouble getting my mp 566 to work. I don't seem to come past point 5 of the test guide. The manual says that the led should stay off when turned on, but in my case it flashes red green, and then green for a little bit. and then nothing happens when I turn the pots. It reads -5.08 dcv between 0v and tp 8, but I also don't see the tube light up, which I suppose should happen when powered on.
Earlier on I made the mistake of soldering U4 directly to the pcb (stupid I know) So I figured that I might have fried it and ordered a new TCA 0372 dp1 chip, desoldered the other one and replaced it. But the outcome is the same.
Any tips?