Hi!
I noticed some serious humming sound when I connected DAC to a wall socket (even though not switch was not turned on). Chaning polarity (L with N) did helped, but not completely.
I found out that the output GND of the PSU board has to be grounded.
Since I do not use PSU to supply power to the digital board, grounding was not done via digital board.
Now I still hear some humming (at very unreasonablly high values), but this is result of heaters/B+, I guess.
Well, the break is over - I have to go back to work.
Matej
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment