Question about Audio & Video Receivers

4 Answers

Speaker Connection Problem with New A/V Receiver

I continually get the PROTECTOR message when I turn on my STRDG820 7.1 Audio Video Receiver which indicates that there is "irregular" current coming from the speakers. I am confident that my speakers are connected properly so I don't know what to do. The receiver is new, the speakers are Sony speakers I used on my Sony 5.1 system that I am replacing. My two back surrounds are much older. I am using new speaker cords as well. A little aggravated about the way you hook the speakers up on the back of the receiver as they have twist knobs. I have also connected the new receiver up with the old wire that used on the 5.1 and got the same PROTECTOR message. I put my 5.1 surround system back in while I work this problem. Any help would be much appreciated.

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  • kelrhon Jan 02, 2009

    The receiver is brand new...should I just return it? Are you saying that this is probably a receiver problem and not a speaker problem?

  • kelrhon Jan 02, 2009

    Thanks for the response about the old speakers. That was one of my concerns in researching this issue in that I could not find information on speaker recommendations but did see where people were using their old speakers. I can get new speakers, but I am concerned that it won't solve the problem. Finally, it seems odd that they use the twist knobs on the back were you stick the +/- wires in and then twist down tight. Seems simple enough but I kept working because I felt I may be doing it wrong.

  • kelrhon Jan 02, 2009

    STR-K750 is my current 5.1 surround. My speakers do not say what OHM they are. It was one of those Home Theaters in a box. SS-MSP75 is the model type for these speakers.

  • kelrhon Jan 02, 2009

    My speakers look to be 8 ohms. I wonder if I should either return the A/V system or purchase brand new speakers.

  • kelrhon Jan 02, 2009

    I plugged in my unit with no speakers attached and still received the
    PROTECTOR messages..could this be an internal problem with the
    receiver? Should I return this brand new receiver and get another one?

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4 Answers

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  • Master
  • 1,011 Answers

Sir,

It is problem the speaker wires are mostly behind the cabinet and the bulk of the speakers. Check with other sources unhooked them from the speakers as well as the receiver. Also the wires. Also u would be looking for a short between the two wires in each cable.

Thanks
good luck

Posted on Jan 02, 2009

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  • Master
  • 10,594 Answers

Simply power up unit without any speaker attached and see, does it go to protect mode?
If unit powered up properly then cause of problem is speaker / speakers or its connecting wries.

Posted on Jan 02, 2009

  • Shahid Electronics
    Shahid Electronics Jan 02, 2009

    Yes, Its internal problem of receiver amps and should returned for replacement.



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  • Master
  • 6,966 Answers

Hi and welcome to FixYa,

As the display message implies, "PROTECTOR" indicates that the built-in diagnostics have determined that a fault exists and could cause (further) damage to the STRDG820. I understand that the STRDG820 requires 8 ohms per speaker. Could you possibly check if the speakers from the 5.1 sets are so?

Good luck and Thank you for using FixYa. Happy New Year.

Posted on Jan 02, 2009

  • Louie  Role
    Louie Role Jan 02, 2009

    Hi again,

    Appreciate the updates. On the test with no speakers connected, it is also possible that the Sony STRDG820 will go into PROTECT mode if it senses no speakers are connected in the same way that it did sense that the connected speakers were below its ratings.

    I am tempted to think that the STR-K750's SS-MSP75 speakers are rated 6 ohms. While not much difference, might be the issue. Any other possible speakers to test? Being able to test with 8 ohms speakers might be the clincher on your decision to return/exchange.

    Incidentally, normally at the rear of the speakers would be their ratings. Perhaps you could visually check the STR-K750's SS-MSP75 speakers.

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  • Audio & Vide... Master
  • 19,396 Answers

If you get protector,k that means that there is an internal fault or a short.

Unplug all cables, including powr cord, and look for shorts on speaklers connection, if you find none, the unit must be taken apart, and inspected by a technician.

Posted on Jan 02, 2009

  • Ginko
    Ginko Jan 02, 2009

    If you are using old speakers, the system can also go into protection mode because of an internal short in the old speakers, that would not affect an older system, but that can damage your system.

    Better using new speakers with this system.


  • Ginko
    Ginko Jan 02, 2009

    The protection mode (protector) is a special diagnostic mode that comes up whenever a short or an internal fault is detected.

    Test the system with no speakers, or with a minimal set of speakers (2 in stereo mode, using speakers that are tested and working).

    If unit is still on protector mode, then the unit is defective, take it back to the shop for a checkup.


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1 Answer

Turning it on the onlything it says is Welcome Protector and does nothing else


Is the message "Protector" or "Protected"? Several models will say Protected if there is a voltage/power issue with either the unit or the speakers attached.

This can be triggered by a short in a wire to the speakers or to the unit itself or a blown fuse inside the unit. Unplug the receiver from the incoming power from both the receiver and the outlet, if possible. (This applies if it is a free-standing unit; units in cars are different.) Then unplug the speaker connections. Reconnect the AC power and attempt to turn on. Does the error persist? If it has been resolved, plug in the speakers one by one. If you get the message as you plug in the speakers, check the wires for a short. Check if your speakers are drawing more power than the receiver is capable of handling. (This only applies if the speakers are directly connected to the receiver.)

If the message occurs before you plug in the speakers, check for a problem with the ground as well as for a short in the rest of the power connections on the unit. If there is no obvious damage, then if the unit is still under warranty, consult the manufacturer for a warranty repair. Otherwise you'll need to open the unit and check the circuitry. (Replacing the fuse may work. However it will not resolve the problem if there is another problem that is causing the fuse to blow.)

I hope this helps. Please add a comment with the make/model and specifics of the receiver for more information.

Cindy Wells

Dec 17, 2011 | Audio & Video Receivers

1 Answer

It keeps blinking protetor


The protector circuit protects your amplifier from shorted speakers . One of your speakers , or more speakers are shorted out . To figure it out easily follow these instructions . Turn the unit off . Now unplug all of the speaker wire connections from the back of the unit . Turn the unit on . Make sure the volume is turned all the way down . The protector light should not light up . If it does , the problem is inside the unit itself and we'll have to be repaired at the shop . If the protector light is off than continue on as follows . Connect the speakers one at a time to the unit . Each time you connect a speaker , turn the volume control up and back down making sure the protector light does not come on . When you connect the bad speaker , the protection light should come on . Whichever speaker makes the lights come on when connected is the bad speaker and should be replaced .

Oct 21, 2010 | Sony STR-DA2ES 6.1 Channels Receiver

1 Answer

I get a message "protector check code 11" and then it powers off


Page 59 of the manual (avaliable at retrevo.com after you register)...

"PROTECTOR/CHECK CODE 11
Irregular current is output from the speakers. Turn off the receiver , check the speaker conenction and turn on power again"

What this means is it senses a short circuit in one or more of the speaker paths. Disconnect all speakers, see if it works with none; then start connecting speakers again until you find the problem.

Feb 13, 2010 | Sony STR-DA5000ES Receiver

2 Answers

Message "PROTECTOR"


Disconnect all speakers at the receiver and power it back on. If it stays on, check all speaker wires and speakers for shorts. If it cuts out, it needs service. If you need detailed troubleshooting help on this after testing receiver without speakers connected and it passes, post a comment and I can walk you thru it. Hope this helps.

Oct 24, 2009 | Sony STR-DE625

1 Answer

Keep getting message protector


if all connections and speakers seem ok the problem is internal witch can go from blown power supply to shorted output devices and everything in between , and as always look for repair shop in your area, do not attempt to do it yourself, firehazard and electric shock are the things we all want to avoid ;)

Sep 01, 2009 | Sony STR-DE835 Receiver

1 Answer

MySony str-da5000es is showing error code 11 and shut off by itself after few seconds.check and disconnect all speakers, unplugged power from wall and still showing error 11. am missing something in here...


error code 11 (protector) - According to the manual, 11/PROTECTOR means, "Irregular current is output from the speakers. Turn of the receiver, check the speaker connection and turn on the power again." Most likely, a strand of speaker wire is shorted to the chassis at one of the speaker terminals.
Hope this helps !

Jun 17, 2009 | Sony STR-DA5000ES Receiver

1 Answer

PROTECTOR MESSAGE


Yes, It is receiver internal issue.

Jan 02, 2009 | Sony STR-DG820 Receiver

1 Answer

You Just Responded to my STR-DG820 Issue..........


Its internal problem of receiver and as you said, its brand new so it would have warranty cover. Simply return it and get replacement. I have all tech info including schematics of this particular model and can guide you to resolve this problem but I receommend to askSony for warranty replacement.

Jan 02, 2009 | Sony STR-DG820 Receiver

2 Answers

Protector


This message indicates that a problem was detected in the amp. In order to prevent any further damage to the amp or the speakers, the outputs are turned off. Does the receiver show this at all times now?
Dan

Mar 19, 2008 | Sony STR-DE835 Receiver

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