Hi all I hope someone can help, I have a Naim Nac 62, Nap140 and a Hi cap, when just the Nac 62 and the Nap140 are connected everything is working fine, connect the Hi cap and it switches the Nac62 off, these are units that have been stored away for a few years, we had them working fine before and can’t understand why we have this problem, the cables are good as far as I can tell, they check out with no short circuit or open circuit, anyone have any suggestions please?