Since last week I have the same issue. Fuse seems to be fine; replaced it but it did not make any difference. Did you manage to fix it?
I had ordered this item just over 3 weeks ago, and funnily enough it literally just arrived:
https://www.ebay.co.uk/itm/Logitech...d-Post636-Subwoofer-Wired-Remote/321069120064
Testing it as we speak:
- centre speaker and subwoofer produce no sound when connected correctly
- the other 4 speakers are back in action
- swapped the front and centre/subwoofer inputs as a test, which results in the centre/subwoofer working but now the fronts don't
- the sound crackles a bit and isn't as clear as it was with the Logitech Control Pod
I think my Asus Xonar DX (running MaxedTech UNi Xonar Drivers) may not be configured properly or VLC is not outputting the sound correctly. The Control Pod may have handled this before but now I have to resolve it at a software level - I have tried a few different settings (have only spent ~5 minutes tinkering before focusing on writing this reply) and haven't had much luck yet, but there is still plenty more I can experiment with.
Overall, this device has confirmed that my issue was a dead Control Pod... all 5 speakers and the subwoofer still work.
/Edit:
Update: I swapped over to the Asus drivers and applied the same settings I had with the UNi drivers (see screenshot below) and now all channels seem to work as expected.
After a month of using some rubbish 2.1 speakers, the Z-5500 sound amazing