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Receiver displays a protect sign and will not send any sound

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Re: Receiver displays a protect sign and will not send...

Mine does that 2, you have a speaker that cant hold that much power being put in it. Get some bigger speakers. Or look at you wires and make sure there are not any crossed.

Posted on Aug 14, 2008

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Standby indicator flashes

When the "Protection" indicator comes up the display panel of my receiver or the On/Standby LED is flashing, does that mean my receiver needs to be repaired?
The "Protection" light comes on when the receiver's current sensing and thermal monitors detect some unusual operating condition that, if left unchecked, might damage the amplifier. This can happen if there's a dead short in a speaker wire or if you're using very low impedance loudspeakers at high volume for an extended length of time. On older model AVRs you may see the word "Protect" on the receiver's display. More current models will indicate a flashing red light on the Standby LED when a Protection circuit trips
n thermal cases, the circuitry will automatically reset after a few minutes of cool down and the Protection indicator will go out and normal operation will resume. If the protection light came on due to a speaker wire short, low impedance condition or a bad speaker, the receiver's power will need to be turned off to reset it. Before turning the power back on, all speaker wire connections should be checked for their integrity at the receiver side and at the speaker side. If the protection light goes on immediately after you turn on the receiver, disconnect the speaker wires at the receiver side and retest. If the receiver's protection light goes off, then there would still seem to be a problem with one channel's speaker wires or speakers. Connecting them one by one and retesting should allow you to find the problem speaker or connection.
If after checking all your connections, the Protection indicator stays lit, you may need to "initialize the microprocessor (see the FAQ on that topic) or take your receiver to an authorized repair center for a diagnostic. The "Initialization of the Microprocessor" or "reset" procedure can be found in your owner's manual on current model AVR product. Please note, this will erase all setup configurations in the system and require the system to be setup again. You may want to mark down the settings before resetting your receiver to aid in the setup process. If you had an installer setup your system, you can contact them for assistance and any associated costs that may apply to setup the receiver again would be the responsibility of the owner.

Jul 17, 2016 | Sony DAV-FR1 System

2 Answers

DVD system shuts down during DVD play with various parts of shows

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Knowledge Article C337191 Error: The message PROTECT or UNPLUG shows in the display.
Follow this procedure to troubleshoot when a PROTECT or UNPLUG error is displayed.
IMPORTANT: The top of the receiver must have proper ventilation to keep from over heating.
  1. Reduce the volume level.
  2. NOTE: If the receiver is played at the maximum volume level it may enter the PROTECT mode. Maximum volume listening will cause the receiver to run hot and drain the output capacitors.
  3. If both the A and B speakers are being powered by the receiver at the same time, turn off the surround sound option.
  4. If protect occurs only when using a DVD player, the sampling frequency may be set too high.
  5. NOTE: Some receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the user manual for specific information.
  6. Ensure the speaker wiring is not damaged and is properley connected to the back of the receiver and speakers.
  7. If the issue is still unresolved after completing all of the troubleshooting steps, service may be required.
Created: Thu Sep 16 14:49 2004 | Last Modified: Wed Jan 11 09:02 2006

Feb 13, 2008 | Sony DAV-FC7 System

1 Answer

I cannot see message i send or can see messages i receive

During the chat session of yahoo messenger if you can not see you typed message or can not read the receive message. Just sign out and sign back try to send message if the message will appear in chat box. If the problem is still happen you need to restart the unit ans sign back. That;s what i have experience before and i know what i am doing to fix it.

Oct 04, 2009 | Yahoo YHT-630 System

1 Answer

On my Sony Surround Sound tuner, if I raise the volume up to a certain level (not that loud), I get a flashing sign ''protect'' and the sound to the speakers are cut.

Sony has protection in these receivers for two main reasons.

1 - Checking for DC voltages on the outputs to speakers. Not your particular problem.

2 - Excessive current being drawn from receiver on one or more of the speakers.

Number 2 should be your starting point in finding a solution. Put the volume level on Medium - 35 to 40 on the front panel. Now listen to all you speakers in turn. Any scratching noise will indicate a defective speaker. Remove this speaker from the receiver output and check again if the set goes into protection on high volume.

If you could not find any strange noises on the speakers, remove them one by one and test the set on high volume.

Never - attempt to disengage the protection on this amplifier. The only times we have found the amplifier to be defective with this protection error, it has done so no matter the volume level. Therefore I believe your problem to be a speaker or speakers.

Good luck!

Sep 13, 2009 | Sony Home Theater Systems

3 Answers

I have a LG ht502 home theatre , black and white only

Sir avservice, I have also posted a problem about an HT502 DVD receiver + Home Theater. The sound won't come out of the speakers but only of the Plasma tv. But was working before. And the word "PROTECTION" is appearing on the display screen of the dvd receiver. But good quality picture on the plasma tv. Please help

Jul 20, 2009 | Jensen JHT-350 System

2 Answers

I keep getting a messasge that says PROTECT on my Harman/Kardon receiver and then shts off

Disconnect all your speakers at the receiver, then turn the receiver back on. Turn on CD/DVD/Cable etc, then turn up the volume, if it does Not say "protect" you know the problem is in a speaker or a wire. If all goes well, re connect one speaker at a time with the receiver off, then turn on, turn up volume. Repeat until all connected or receiver goes back into protection. Once you find the bad wire/speaker, disconnect the bad wire at the receiver, then reconnect the remaining wires and test again. Now, disconnect the wire at the speaker causing the problem and reconnect it at the receiver. Make sure the wires are separated at the speaker side and; more importantly, cleanly connected at the receiver. If you have any freyed wires at the receiver, cut and strip, then twist the braid neatly. There should only be 1/2" of stripped wire, enough to fit under the terminal when you screw it down. Now, turn on the receiver and test again. If it does not go into protection, reconnect the speaker and test again. If it goes into protection at this point, you know its a speaker problem. If possible, disassemble the speaker to look at the internal wiring, if it looks good, look for a crossover network; this will look like a small printed circuit board. If it's really dusty, use some "dust off" and spray away the dust. look at the circuitry for visible damage, ie. brown or black spots. If you see them, there's your problem and the speaker needs repaired or replaced. To double check, you can meter the speaker for resistance. If your multimeter is digital and says 1..... it's a short. If it analog with a needle, it'll peg to the right. This is a very common problem. Hope this helps

Jun 11, 2009 | Home Theater Systems

1 Answer

My system shot down during a movie

The reason why your receiver is going in protect is because there is a short circuit happening. This would either be on your speaker wires, speakers or receiver itself. What you want to do to check would be:
1. Unhook all sources and speakers from your receiver.
2. Turn on your receiver and crank up the volume to maximum, if your receiver does not shutdown or go on protect then the receiver is OK. If it does shutdown and go on protect then its an internal problem on the receiver and you would need to send that over to an authorized service center.
3. Hook up a source and 1 speaker. Play something from the source or the fm tuner, Crank Up the volume to about 46 or 47 volume. If the receiver does not shutdown, its good.
4. Hook up a second speaker and repeat the process until you encounter the pop and shut down
if for example you encounter the pop on the 4th speaker, try changing the speaker wires.
5. If the receiver still shuts down then it would be a short on the speaker itself and it would need to go to an authorized service center.

Feb 23, 2009 | Onkyo HT-SR800 System

1 Answer

Sony STR-D460Z receiver

A common cause are failures in the amplifier output stage, the drivers, and some of the support components. You will have to send the unit out for service.

Jerry G.

Feb 08, 2009 | Sony Home Theater Systems

1 Answer

Sony home theatre system receiver displaying PROTECT.

output stage fault probably a capacitor leaky

Dec 09, 2008 | Sony Home Theater Systems

2 Answers

Sound cuts out every so often when using Coax Digital In

solution to Both our problems is this, call Philips, "it just so happens that we have a rapid replacement program for this particular system"-"there seems to be an internal electrical problem", so I'm sending it back to them.......

Dec 12, 2007 | Philips HTS-3555 System

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