Originally Posted by syzygetic
Quote
It looks like the speaker doesn't have a solid digital sound stream. Can you use another cat cable to feed the speaker?
Yep, can try, thanks for idea. I'm using SPLNK Cat8 at the moment, have plenty of Cat7/6 around I can swap out, haven't tried yet.

Updates for science and future reference, in case others have this issue (assuming, of course, I solve it eventually!):

- I tried two different kinds of cable, both cat6, in addition to the cat8 which was originally on there, and all three made no change to the display flicker.

- The display flickers even when the SpeakerLink cable is disconnected.

- Interestingly, the display appears to flicker less when the SpeakerLink cable is disconnected, but I the flicker is so random, I cannot tell whether this difference is statistically significant, or just perceived. To be clear, the flicker occurs with and without SpeakerLink connected.

- I tried three different power sources, all on the same house-grid, but from different circuits. The display flickers on all three power sources, with and without SpeakerLink. One of the power sources is behind an isolation transformer, two of them were simply on house-grid. My house is an electrical mess, as aforementioned, but the power behind the isolation transformer measures highly stable, and I can't say the DSP5200s ever cared much about electrical noise, the isolation transformer is for the sake of the more sensitive stuff, such as my Class D amps, which did care about the noise.


Next up in the troubleshooting procedure, for when I have time:
- I'll take a stab at removing the display & bezel carefully, and check the ribbon cable.

- I'll shut down all other power circuits in the house, to eliminate the possibility that a wired or wireless signal is causing this flickering via interference.


I really appreciate the help, all, this place is awesome. Looking forward to participating more here, and reading a lot of these threads!

Main System: MiniDSP SHD (Roon, Dirac, Volume) > G61R > DSP5200 Speakerlink L/R, 2x SVS SB3000 Subwoofers
Office1 System: Genelec 8030c L/R, Genelec 7060B Subwoofer
Bedroom System: DIY Sure 2x100w Class D Amp, ELAC DBR62 L/R