Hi both
Checked speaker cables and terminations, all good.
Tape is just covering the solder joint of resistor.
Mixer Amp has Thermal error LED, which didn’t come on, but unit was warm (not too hot to touch). Initial thoughts were fan, but that is fine. Spins on power up and then comes on when on load. Have found. Schematics and it appears to be a variable speed fan circuit depending on heat. Works ok now in the garage, but have seen that the right channel is slightly lower volume than the left (have swapped sources around and it stays lower on right)
It was towards end of the night when it died, so volume might have crept up. No Base through mix (base guitarist had own amp), just vocals and acoustic guitar. Plus the heat LED didn’t come on.
Bit concerned to just hand it back as ‘tested’ as not found a fault as yet…
Mixer was a new purchase by pub from eBay, so wonder if sold due to fault…