The phono stage on my Roksan has started only playing through 1 channel. Do these go at some point? I've routed the Rega through a Thorens Phono box and into a line input and is fine. As is all other inputs. Weird and a shame, it sounded great.
It looks to me like relays do the input switching on your amp (you will know that's true if you hear clicking as you change inputs).The phono stage on my Roksan has started only playing through 1 channel.