Well, it got even better.
I?ve tried to fond a possible short and the only board except of M boards I have removed was the BA board (4.0V adjustment). I've inspected it and it seemed fine. After I put it back in and power up the synth it played a low note and died. There was a smell of something burned so I?ve turned it off immediately.
Now the PSU is dead. No power. All the fuses intact..
I will recap it and see if it will help but I am pretty mad cause I took extra care while handling this synth and even the fuses did not save the day.?
Visually nothing is wrong with the PSU. No leaking or signs of burned components. The only thing that smells is the micron 78 resistor on the heat sink. I will try to change that too.
Honestly...lot of fun :(
pyjamagroove