Onkyo TX-NR414: Sound Issues, Unrecognized USB/NET & Firmware Update Challenges

Have problem with Onkyo TX-NR414 which has no sound, and not recognized USB and NET, I checked pressing display and turn on buttons simultaneously and saw D????????????? on display. It is impossible to do any firmware update, because USB is not recognized. Is there someone who had similar problem, and to give me advice what to do.

You have a problem with the ic DSP

You've probably been hit by a fairly popular DSP problem. If you are the first owner, just like checking the firmware version, press the setup button 2 times instead of + / -, the display will show the working time of the receiver.
If it will be around 10,000 is a chip to replace, if less (and you are sure of this value) you can risk programming its memory, although you must bear in mind that the systems factory-installed in this model (I assume that the receiver did not receive a service action) have a factory defect.

wolek123 wrote:

You've probably been hit by a fairly popular DSP problem. If you are the first owner, just like checking the firmware version, press the setup button 2 times instead of / -, the display will show the working time of the receiver.
If it will be around 10,000 is a chip to replace, if less (and you are sure of this value) you can risk programming its memory, although you must bear in mind that the systems factory-installed in this model (I assume that the receiver did not receive a service action) have a factory defect.

Thanks for your intention to help. I pressed the setup button twice, and it's showing 00:00. Receiver worked until a couple weeks ago, and it stopped. The problem I noticed before it stopped, it had the same symptom several times, but after a couple tries to turn on it was working normally, until stopped totally. It happened after software update which is done over network. I am not sure is it firmware problem or hardware now.

You must press the setup button twice to know the total operating time of the device.