I must confess, I haven't tried this, but as soon as I am back at base I shall!
I'm not very technical if I'm honest. How would 'an earth loop problem' be solved - assuming this to the case?
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Another one to try is to switch the interconnect white to red and vice versa at both ends, to see if the problem moves.
I think I know how i am going to solve this problem. I'm going to get an optical switch so I can plug both B2 and the Sky box in. Job done then I reckon. I'll let you all know how I get on.
I thought this would be about a paper given away at tube stations :scratch: