It will power on for about 5 seconds.
Is it going in to protect mode?
Check your speaker wires for shorts.
SOURCE: onkyo ht-r530 goes off immediately after turning it on
While you are trying to turn it on, it is likely that it is cooling off. Thus you could get the same results by not trying to operate it but let it sit for about 10-15 minutes. Over heating is a common problem. If you have anything sitting on top of it or too close to it, such as another device that has heat of it's own, move it. Also, if you listen at loud volumes and/or are using inefficient speakers that will also make it run too hot and trip the thermal protection circuit. Turn off any equalization or "loudness" features or listen at a lower volume...may also want to get a small fan to run on it too.
SOURCE: onkyo HT-R560 receiver
The unit most likely blew up a capacitor. If you look in through the slots on the top of the unit you should see 2 big black caps (C6901 and C6902) with shiny silver-ish tops. I should also point out that you probably flew up a 125v 8A (F901) glass fuse on the board that the AC cord plugs into. The glass fuse can be found at Radio Shack, but the caps are a bit more troublesome to find. They are 10,000uF 69v and thats just not a standard part, so you may need to up the voltage requirement and buy a 75v cap. Total to fix the amp yourself: Should be about $35 with shipping.
SOURCE: My Onkyo HT-R510 will shut down after several
Might be over heating. Make sure you don't have anything sitting directly on top of it. I even put a little fan blowing outward at the back of my system to keep it cool.
SOURCE: I CAN'T GET MY ONKYO HT-R340 AV RECEIVER TO TURN
I have the same problem during years, I have the same av rereiver and the device switchOff (even in standby). The red led is not visible. During several hours, rare time minutes it is blocked.
I sent it, the last year to the official technical service and they said me that nothing matter with it!!!
The worst buy made by me, goodluck, if you have solution I will be pleasure of your information
Juan Luis Santiago
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