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I AM GETTING AN ERROR MESSAGE "PROTECTOR" FROM MY SONY HOME AMP

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  • jhodgesatmb Dec 07, 2008

    I have a Sony STR DA333ES. We had DirectTV installed on Friday. Before that I had never had any issues with the amp. Now DVDs will play for a minute or so and then the amp goes into a flashing "protector" mode. Other replies suggested checking the speaker connections, which I will do since that does make sense and is highly possible given how gentle the DirectTV guy was with my system.

  • Anonymous May 04, 2009

    sony fm stereo receiver STR DE825.

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  • Master
  • 4,234 Answers

This indicates that a problem was found in the final output section of the amp. Usually this means that the output transistors have failed. If you can post the model number, I can provide you with additional details and cost extimates for repair.

Thanks,
Dan

Posted on Nov 07, 2008

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When playing DVD, it's sometimes display 'PROTECT' and stop playing.


Check if you receive the error when playing any DVD in particular.

What happens when you take out the DVD and try playing it again? Does it play

This protector error denotes several possible problems. Heat, volume level and incorrect DVD settings may be the cause of the problem. The following steps will help you correct your problem and rid your amp of its "Protector" error.

  • Examine your volume setting to be certain that your volume knob is not at maximum. Having your volume cranked too high can cause the capacitors to overheat, shutting down the receiver.
  • Unplug your receiver and disconnect your speakers from the terminals on the back. This will allow you to determine if the error is internal. Plug your receiver back in and look for the same error message. If you continue to get the protector error without having your speakers connected, you may have an internal electrical problem. In this case, contact Sony about finding a repair center.
  • Reconnect your speakers one at a time. The order of connection doesn't matter. When reconnecting, be sure that you do not have your positive and negative speaker wires crossed in any way. After each connection, test your amp by running it with a source. Give each speaker a few minutes of power before connecting the next one. This will help you isolate which speaker terminal is causing the error. When the protector error returns, take note of which speaker connection caused it. Check this speaker wire for shorts or torn shielding.
  • Examine your ohm rating of your speakers if you have no shorts or wiring issues. Sony receivers are not compatible with speakers lower than 4 ohms. Connecting a lower ohm-rated speaker will cause an error.
  • Turn off the surround sound option if you have both your A and B position speakers in use.
  • Keep your receiver well ventilated. Overheating due to poor ventilation can also cause Protector errors.
  • Examine the sampling frequency of your connected DVD player. If the error only occurs when you watch a DVD, the sampling frequency of the DVD player may be set too high. Check the sampling rating in your receiver's manual and in the DVD player

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