My brand new home theatre (SC-PT580) shuts down 5 seconds after i power it up and the message "F61" flashes for half a second. I read the user manual and it says "check and correct the speaker connection. If this does not solve the problem contact your dealer". I took it to my dealer today and they did not give me a clear answer. They said they will try to solve it and come back to me. Is this common? What would the solution be? The guys at the dealer maintenance center reluctantly said "we'll do a software reset and it will fix it". I did not believe it. And if the fixes it.. will it ever come up again? Thanks a lot. Shadi Samawi

As they, if you want a guarantee, buy a toaster. There is no way anyone could ever assert a problem will be forever fixed.

If you Google ore even just search Fixya for "F61" you'll find a zillion hits, so it's VERY COMMON.

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.