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Sounds like your "friend" has cooked something. It could be one of your speakers (do they all sound ok for the 5 seconds it runs?), or it could be the receiver....
I would try disconnecting all the speakers and see if it stays on. If so, it may be one of the speakers. Connect them one at a time, and see if you can tell.
Most likely it is going into a safe mode as one of the speaker connections might be creating a short in the audio amplifier. Check speaker terminals connections. The model number of the unit would be helpful to know.
Check for a bad ground on the input circuit board. you will need to re-solder them. Remove top cover and rear panel (many screws on rear panel) The input board can easily be accessed and resoldered. you should also check for a bad ground on the speaker jacks. If it is not repaired, sooner or later you will probably need an output IC. good luck.
Hi,,,thanks for your good response...Understnding a 7.i surround system through chat is difficult...that ws why i couldnt get it right...if i was there at your place i would have solve that it in seconds...anyway you got it done by yourself thats what we wanted...thanks again
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