Question about Sony STR-DE445 Receiver

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Sony STR-DE445 protect displayed

Sony STR-DE445 MY RECEIVER COMES ON THEN IF I TAP THE SIDE OR IT RATTLES BY MY SPEAKERS I HEAR A CRACKLE AND PROTECT IS DISPLAYED AND THEN I CANT DO ANYTHING SEEMS TO BE SOMETHING LOOSE OR SOMETHING INSIDE IT SEEMS , - ANY ONE KNOW WHAT THIS COULD BE BEFORE I TAKE IT INTO A SHOP AND PAY OUT LOADSOF CASH TO BE FIXED THANX

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  • stripp806 Feb 07, 2009

    Sony STR-DE445 Receiver
    when i try to use my Receiver it writes "protectc" in the display and then i can't use it..

    some one knows what's wong??

    please help me

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It sounds like a bad solder connection. It just needs to be soldered up, if you take it into a shop just tell them it doesn't need any new parts, it just needs to be soldered up.

Or, if you can solder it yourself, or know someone that can, that would be much easier.

Posted on Aug 28, 2008

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Posted on Jan 02, 2017

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1 Answer

SONY STR-DE445 UNLOCK CODE


Follow the steps below to troubleshoot if the word PROTECT or PROTECTOR is flashing on the A/V receivers display.

  1. Check the speaker wires and speakers for proper connections.
  2. Reduce the volume level. IMPORTANT: If the receiver is played back at maximum volume level it may enter the protect mode. Maximum volume listening will cause the receiver to run very hot and may drain the output capacitors.
  3. Disable the surround sound option if both the A and B speakers are being used simultaneously.
  4. Ensure the top of the receiver has proper ventilation to keep it from overheating.
  5. If the message only occurs when using a DVD player, the sampling frequency may be set too high. IMPORTANT: Some receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the owners manual for specific information.
  6. Unplug the AC power cord for about 1 to 2 hours to reset the output transformers.
If the issue is still unresolved, service may be required.

Feb 11, 2012 | Audio Players & Recorders

1 Answer

I have a Sony STR-DE 597 reciever. I have been using it fine for a few years with no problems and it sounded great. I turn the unit on recently and a message was displayed on the unit that said PROTECT....


Protect will usually show up if the receiver was turned up too loud to the point where the speakers will crackle, the receiver will switch to protect to not damage anything. Unplug it for about 30 seconds and check all the audio wiring in the back to make sure everything is plugged in good and tight and no loose cables or stray pieces of copper audio wire and plug it back in.

Aug 21, 2011 | Sony STR-DE595 Receiver

1 Answer

I need help my sony str dec 445 keep flasking the protect on the display


first check for any loose speaker wire in the back as this will cause the unit to go into protect mode if the bare speaker wire is touching, if thats not the case then there is a problem with the unit internaly and would be hard to tell whats wrong with it without looking at it.

Dec 11, 2009 | Sony STR-DE445 Receiver

1 Answer

PROTECTOR/CHECK CODE 21 COMES ON ONCE A WEEK OR SO.


STR-DA2000ES, STR-DA3000ES and STR-DA5000ES:

Doument Reference: E23914196
Subject/Description: "Protect 21" is displayed when connecting to speaker/powered subwoofer combo


SYMPTOMS
Protect 21 is displayed when connecting to speaker/powered subwoofer combination model such as the SA-VA7000ED. The problem was also found to occur when connected to the Definitive Technology POWER MONITOR 500 and POWER MONITOR 700 series speakers.
CAUSE
The DC detection circuit is triggered when the speakers are connected.
RESOLUTION
Add a 4.7k metal oxide film resistor across capacitors C1319 and C1329 located on the D-AMP board.

Hope this helps. =)

Oct 23, 2009 | Sony STR-DA5000ES Receiver

2 Answers

PROTECT DISPLAYED ON RECEIVER


This generally means you've got a short somewhere, and the received is trying to protect itself.

My suggestion is to disconnect all of your speakers at both ends, and reconnect them.

Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.

Mar 24, 2009 | Sony STR-DE485 Receiver

1 Answer

No sound in DVD mode


when i turn on sony receiver it will not play it just says protect on the screan

Dec 21, 2008 | Sony STR-DE445 Receiver

1 Answer

My reciever is flashing the word PROTECT and will not function. It's a Sony STR-DE445


Follow the steps below to troubleshoot if the word PROTECT or PROTECTOR is flashing on the A/V receivers display.
  1. Check the speaker wires and speakers for proper connections.
  2. Reduce the volume level. IMPORTANT: If the receiver is played back at maximum volume level it may enter the protect mode. Maximum volume listening will cause the receiver to run very hot and may drain the output capacitors.
  3. Disable the surround sound option if both the A and B speakers are being used simultaneously.
  4. Ensure the top of the receiver has proper ventilation to keep it from overheating.
  5. If the message only occurs when using a DVD player, the sampling frequency may be set too high. IMPORTANT: Some receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the owners manual for specific information.
  6. Unplug the AC power cord for about 1 to 2 hours to reset the output transformers.
If the issue is still unresolved, service may be required. The Sony® eService Web site at http://eservice.sony.com/ can assist you in obtaining service from a Sony Service Center or locating a Sony Authorized Servicer.

Dec 15, 2008 | Sony STR-DE545 Receiver

2 Answers

SONY STR-DE675 RECEIVER


check the speaker's connections, I got them message when a speaker wire was unplugged and plugged back in while the unit was powered on

Oct 02, 2007 | Sony STR-DE675 Receiver

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