Hi\n\nI have an Anthem MRX520 which has developed a shut off issue. It seems to turn on fine but shuts itself off automatically after random time periods, sometimes 20 minutes, sometimes 10 minutes, sometimes 2 minutes. There seems to be no particular pattern with these shut off time periods, although I have noticed that if I keep the unit switched off for a long time, the next time that I turn it on, it seems to stay on for longer. Note that this issue occurs even with all the speaker cables and the input cables disconnected. That is, even when it is simply connected to the mains without any input or output. So this rules out the option where the problem can occur from a faulty input or shorted output.\n\nI wrote to Anthem dealers in Europe. One of them told me to reset it to factory settings which of course, I have done already. Needless to say that didn't help.\n\nDoes any of you have any clue about what's wrong with my MRX520? Any help would be highly appreciated.\n\nThanks\nPaul.