Hi~

Seems like you have the same problem when I first entered the DSP world.

Hopefully this Post on 5200 & MC200 thread may provide some useful info.

The problem is that I really don't remember how I fixed the problem, but it was not the hardware issue for sure. I think I re-typed the DSP from the scratch, updated firmware to 1.40, changed the digital cable, and the problem never reappeared.

Actually resolving the problem was actually really good opportunity for me to deep dive on the tech side of the DSP as a first timer.

Hope you will end up solving the problem.

Cheers

DSP: DSP6000.2 MKII, Reviver,
Audio: MS200, Super Linear Power Supply 12V1A, SotM ISO-Cat6
Core+Store: ROON on ROCK