Hello. I have a fairly new Harman Kardon receiver AVR 335. My problem is this: When I plug in the power chord, it switches to standby mode (normal). Sometimes I can't switch on the device (remains in standby mode) After a lot of on/off switching it goes on and playes normally. But after a while, sometimes minutes, sometimes hours, it switches off (to standby mode). Sometimes it helps to "shake" it a little.It has been repaired by an authorized dealer, but the problem was not solved (paid 350$ for nothing)I have read in other forums about people having similar problems with different HK AVR models, but no solutions proposed.Any ideas..??? Many regardsFlemmingDenmark
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