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Onkyo TX-SV717Pro Receiver Flashed "protect" and now display is out

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Wow. This is funny. I have the same receiver in my garage I've had for several years I got from a friend. Same problem. I only looked at it for a few minutes and got tired of it. Maybe two years ago. I used to repair audio equipment professionally (20 yrs).

Almost always, this happens when there is a failure in one of the audio output circuits. It can be brought on by a bad speaker, or too low impedance of a speaker being used, etc. This thing is packed with boards, if I remember right. It could be any of the main channels, or one of the surround channels that's doing this. If you're not sure what you're doing, you could blow one of the channels out irreparably.

To see which channel is doing it, you'll need to find the speaker relays. Might even have to take an Exacto knife and pop the "cap" off the relays to gain access to the contacts. To make a long troubleshooting story short, you check for DC voltage on each pin of each speaker relay right after turning it on, to see which channel is bad. That's really as deep as I can explain it. From here, you need bench experience with component and voltage testing. Your bad channel is probably sending 50-80 volts DC to your speaker relay, and the unit is quickly shutting down to prevent the relay(s) from closing, which would burn out a speaker if one were attached. Good luck!

Posted on Nov 27, 2013

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SOURCE: Onkyo tx-sr800 PROTECT mode

Hold video1 and press speakers A button, it will say "clear" If the message protect appears again, then its service time.

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SOURCE: Onkyo Tx-v940 Receiver/Amplifier Protection Mode

Audio amplifier IC's damaged you need to change it.Good luck

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SOURCE: Onkyo - direct tv code for tx-ds 787

does anyone knows the code to control the onkyo TXDS 787 through the comcast.remote.?

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SOURCE: Onkyo AV Receiver TX-SR 805 no display on the receiver

Finally one of us found the solution - thanks to cambrian
Please follow the link
http://www.avsforum.com/avs-vb/showthread.php?t=857502&page=579

BTW: My knowledge of electronics is very limited, but nevertheless I could fix the problem. I hope you can do it too.

Posted on Mar 12, 2009

smarthome2
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SOURCE: I turn my Onkyo TX-SR600 receiver on. After a few

The most common problem found on FixYa for Audio Video2_bing.gif Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire2_bing.gif. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers2_bing.gif) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Posted on Apr 11, 2010

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