Onkyo Home Receiver Question

[hulk311]

I was listening to my AV receiver (Onkyo TX-SR603X) when all of a sudden it shut off, I think due to it becoming too warm. It's cold outside now so I had the heat on. Anyways, I followed the instructions in the manual, unplugging all of the wires, cables and waiting an hour before turning it on again. It will not turn on now. When I plug it in and press the on button nothing happens.

I was able to find two fuses in the receiver, they are located right on the circuit board that is close to the power cable. How do I know if they are blown or not? One fuse looks good, with no broken wire however the other fuse has a small ball on the wire (never seen that before), does that mean it's blown? If not, what is the next step for me?

 

[IanB]

The one with the ball is just another type of fuse, but the wire doesn't look centered like I'd expect it to be. Are you sure it hasn't blown close to one of the end attachment points?

 

[rayjay]

Yes the one with the ball is normal. Fuse's are cheap. You could always replace them both just for the heck of it, maybe you can't see the break. Is the power cord a removable one, like on a computer? Maybe check the connection with that, maybe a bad power strip as well if its routed through one...?

 

[schroest]

I'd also check that no speaker wires are crossed/touching in the back. I've had this happen to me in the past. If you're lucky the receiver will turn off. If unlucky it will blow your speakers.

 

[4runnin4mylife]

I'm not sure how long you have had your Onkyo receiver, but I've had one do the same thing. The issue with mine after a while was that enough dust had finally gotten into the openings in which the warm air escapes the receiver and covered the motherboards, circuits, etc. inside the unit. Just a single layer of dust can make things heat up quick. I was able to clean the circuit boards with a couple air duster cans. If you can take the back off or something to make sure the dust actually escapes instead of getting stirred up and settling back down on the circuit boards that would be best.

This may not be your problem, but its worth a try for a couple cheap cans of air duster.

 

[TK-422]

How to test a fuse.

 

[Off-choader]

fuses look fine, filament is intact. did you try to power on via remote? I had an onkyo reciever and the button quit working on the unit itself but the remote still worked

 

[IanB]

Gentlemen, this post is like 6 years old. :lmao: