Onkyo receiver standby button remains on after unit is turned off

SOURCE: Onkyo TX-DS474 Receiver shuts down after Standby mode.

It's going into a protect mode. The amp is probably shorted out. Disconnect the spkrs and turn it on. If it still shuts off, it's the amp, if not, it's the spkrs.

SOURCE: Onkyo TX-NR905 Protection Circuit Activated

The problem is not with the inputs. This unit is in protect because a problem has been detected in the output section. Try disconnecting the speaker wires and turning it on. If the unit remains on, there is a short in one of the speaker wires. If the unit still shuts down, there is an internal problem that will require repair. It sounds like this is a new piece. If so, it should be covered under warranty.

Keep us posted,
Dan

SOURCE: standby button stuck

Hello. Check all of the buttons on your unit to make sure that they are not stuck...you can feel the click they make as you push it then they pop back out as your finger pulls off. Any stuck button will lock up your microprocessor and keep the unit from turning on. All other problems will require a consumer electronics technician to trouble-shoot the turn on circuit. If you know how to use a meter and know how to solder\unsolder and require further assistance you can contact me. Good luck.

barneyluc

SOURCE: receiver does not power on. standby not on either

The standby light should be on. If it is not, then check the main fuse. WIth the unit unplugged, remmove hte top cover and check the fuse by the line cord. If that is ok, then you will need to check the primary winding on the standby transformer. That transformer has a thermal fuse internally located and that sometimes gets blown due to a power surge. If you do not have the equipment to test this, get a detailed estimate from a local servicer. The standby transformer usually costs arounf $25 or so.

Dan

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