After some physical moving around of my equipment I turned it all on again. My DSP5000C then shows 1L65, which according to the manual indicates it's into either Test or Calibrate Mode.

How it came to be like that I don't know, I haven't changed any of the cabling connected to the DSP5000C (but replaced the MHR cables between G68/G98, changed some component cabling...).

The manual says to press the Clear key while turning the DSP5000C on, it should then leave Test/Calibrate mode. The G68/G98 are in Stand-by mode, so they show "Controller"/"Not Con.". The 5000C shows nothing until I let go of the Clear key, then it again shows 1L65.

The D1500 and the DSP33's are turned off. Trying with them on makes no difference. Turning all equipment on and playing something works, though the 5000C can of course not be controlled so the volume stays at 65.

Any suggestions? I will of course check the cabling again, so any unintentional change (like something having come loose) will be fixed...

HD621, G98DH, G68ADV, Bc Acoustiqe ACT A3, 5200C DSP33, NuForce Reference 9 monoblocks, 2x SB3's, Velodyne DD-15 & DD-12 Subwoofers and a Meridian sub.