Onkyo HT-S780 System "past power ball" Questions

...past 35 it turns off, on matter what mode it's in.....am/fm, tv line in ect............It did'nt use to do that.......... Generally speaking, an amp attempts to protect itself from heat, shorts, ...

...past few months has gotten longer and slower. There is no sound until it goes through this routine. once its done, all is well, until.... Today, no clicking, no progression to a high pitch union. ...

past min the system shuts off Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on. Overloads can be from excessive periods

...power, to trying to open the dvd player which usually worked in the past then I would just switch over the function and last but not least I just tried to plug and unplug it waiting abou 5-10mins ...