Question about Onkyo TX-SR702 Receiver

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Onkyo TX-SR702 in PROTECT MODE -- how to reset?

All,

I shorted speaker wires I was hooking up. Now the receiver turns on only for long enough to display "PROTECT" before turning off.

the red "standy" light is lit when it is off.

How can I reset it?

Thanks.

REgards,
Chas.

Posted by on

  • davisnoob Dec 22, 2008

    goes into protect mode and cuts off need help replaced fuses, expect one.

  • Anonymous Feb 08, 2009

    I HAVE THE TX-SR702 7.1 MODEL AND JUST RECENTLY WHILE LISTENING TO MUSIC IN A HIGH VOLUME AFTER SEVERAL MINUTES THE RECEIVER GOES INTO PROTECT MODE. I'VE HAD THIS RECEIVER FOR ABOUT FOUR YEARS AND NEVER HAD THIS PROBLEM. I ALSO UNPLUG THE RECEIVER EVERY TIME IT'S NOT IN PLAY. CAN I GET SOME ASSISTANCE THANK YOU.

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5 Suggested Answers

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.

Posted on Sep 05, 2007

  • 2 Answers

SOURCE: stuck in protect mode

i believe protect mode is because you have the wrong impedence speakers, they are too low (4 ohm? 6 ohm?) it chols work with 8 ohm speakers

Posted on Dec 11, 2008

petraman7
  • 1175 Answers

SOURCE: problem with onkyo tx 919 unit

Hi...
If you've had it "fixed" 3 times and the problem comes back either you have the wrong impedance (ohms) speakers connected or the power supply in the unit is the actual problem.

Happy new years,

Scott

Posted on Jan 01, 2009

  • 2 Answers

SOURCE: My Onkyo TX-SR500 receiver stays in standy/on mode.

It may be your amplifier protection circuitry is being activated and shutting down automatically. This is usually caused by a faulty output transistor in one or more of the channels. I recently repaired my Onkyo TX-SR500 which had this problem.
Using a multimeter on ohms check between C and E on each of the ten output transistors. I found Q6051 and Q6061 to be short cct on all pins. Once you have located the faulty channels check the adjacent components for open or short cct.

I replaced the following components,
Q6051 (2SD1047)
Q6061 (2SB817)
R6091 (2.2ohm fusible)
R6081 (2.2ohm fusible)
R6101 2x 0.22ohm 2W
Q6031 (2SD2061)

The amplifier now works perfectly, cost of the parts is about $15-$20.
If you don't feel confident doing this yourself just find a friend or tech who can do it for you.

Posted on Sep 03, 2009

  • 1 Answer

SOURCE: How do I reset from the amp protect mode Onkyo receiver TX-SR600?

How do I reset my amp / receiver from protect mode ?

Posted on Jan 29, 2011

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Right. This means that either you have a short in your speaker cable somewhere or the short-detector circuitry inside has problems. Disconnect all speaker cables and turn the receiver on. If the symptom goes away, turn the receiver off again and connect one of the speaker wires. Repeat until it starts to go into protect again. When it does, the last speaker you hooked up has a short somewhere in the wire.
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Good way to sort out bad wire is plug one speaker at a time, turn On receiver check, turn Off, then plug next speaker wire until you find out what speaker wire activates protection circuit of receiver.
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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 wire. 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 speakers) 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.

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