Hey SixerFixer,
just bought a broken bar 48 as a little project. Thank you for posting this, I figured my power supply was working fine until I saw your thread and tested it under load. I got 2.3V.
Don’t bother buying a new power supply or trying to fix it, simply use a usb phone charger. I had plenty sitting around and the first one I picked up was 5v & 1A -perfect.
Just solder 5v and gnd but also use the “STB” pin from the power supply, otherwise you won’t get audio.
I have mine working now and was an incredibly simple & cheap fix. Cheers for your help and best of luck with yours.
Harry
