SOURCE: Onkyo Tx-v940 Receiver/Amplifier Protection Mode
Audio amplifier IC's damaged you need to change it.Good luck
SOURCE: I have an Onkyo Amp
hmm there could be just a fault with this amp if it is brand new.. other wise you might have shorten some wires to geather by accident, try taking out all the audio leads accept the power and see what happends..
if the lite doesn't come on then turn the power off and plug one thing in at a time and turn the power on each time you plug something in..
hope it helps good luck
SOURCE: onkyo HT-R500 amplifier protection circuitry activated
u have a short.
remove all speakers cables and turn it on, if remains on and u can up the volume do the next.
1: turn it off.
2: connect only 1 speaker cable (each time to see if the short is in one speaker or cable)
3: turn it on, up the volume.
this way u must be able to see what cable or speaker have the problem.
if still the same prob the short is inside.
i put a answer of a prob where cant up of 41 check the cleaning method.
Good luck
SOURCE: Power will not stay on
Activated protection circuitry means that the amplifier is seeing conditions it does not like and is shutting down the power to prevent further damage.
Either you have a short in your speaker wires, in your speakers, or a blown amplifier.
Disconnect both speakers and turn on the amplifier. Does it still give the error message? If it does, your amp is blown. If it does not, carefully inspect your speaker wires and their connection. Make sure all looks good and reconnect the speakers and try it again. Still get the error message? You likely have a problem in your speaker cabinet(s).
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