Question about Sony STR-V444ES Receiver

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Sony STR-V444ES "Protector message"

Recently I did experience "Protector" cut off several times. Same thing with the loudspeakers cables off. I did open the machine and clean the interior and the interior connections and miracle...., it was working perfectly. Tonight same problem. I did notice that happens when an humidifyer is working in the same room. Can that be the cause ?

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  • Rene Vauclair Nov 29, 2012

    I cleaned the interior of the machine including the interior connections

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  • 344 Answers

I hate to tell you this that has been a problem wit sony amps end recievers end evan there tv,s for years allready doing that, Try giving it a good hard rapp on the side or the top of it, Sometimes that will work to reset it, If that does not work , It will have to be taken in for repair, What happens to them ,The output transsisters swell up on them, From over heating, , It is cause buy cranlking up the vollume over it,s limit,People don,t relized that with evan a good low wattage amp or reciever ,That they are putting out there maximun power at3/4 vollume allredy. End buy cranking it up over that it cuases it to over heat, The humidifryer would not becauseing that problem, Allso sony do not like haveing miss match speakers being hook up to them, Or any little change in power in your house , Makes them act up allso, End eventully wil cause a problem with it, I no you are not going to want to hear this, But what it cost to have it repaired , You can buy a decent new one , Or a very high end used reciever for, Hope this helps you out,

Posted on Nov 27, 2012

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Posted on Jan 02, 2017

  • 319 Answers

SOURCE: protector message

The only way to reset protect is to eliminate the problem which activated it. Problem may be insufficient line voltage or unit's output circuit. Have unit checked out by prof, tech

Posted on Apr 13, 2008

SOURCE: SONY STR-DE535

Change the audio amplifier IC´s are in short circuit that´s why your device go on to protection mode.

Posted on Sep 13, 2008

SOURCE: protector mode SONY STR D1011S am fm receiver

I've had this happen, it's when you have speaker wires crossed.....

Posted on Sep 22, 2008

  • 71 Answers

SOURCE: sony str-de525 system "protector" problem

You've blown it. It recognizes a potentally harmful situation and goes into protect mode.

Posted on Mar 15, 2009

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1 Answer

What's your problem?sony v444es 5,1 wont turn on, only clicks the relay on power board non stop


Sounds like your power transformer is bad. You might also check the power board for cracks. This model had a history of that.

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My sony receiver STR-DE135 is showing a protector message


Check for shorted speaker cables, or even a bad speaker. I'd start by disconnecting all speakers, see if the indicator goes out. If so, try one speaker at a time until you find which channel is bad, and then examine the cables carefully for things like a stray wire strand. Less likely, but possible is a shorted speaker. If you disconnect them all, and still have the protector circuit on, it's an internal issue, and you're going to need a technician.

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3300 es sony, message "protector"....I unplugged


You've done about as much as a layman can do. I'd advise you get it to a hands-on tech for further troubleshooting. Or something is blocking the ventilation slots and it's overheating.

The manual:

http://www.retrevo.com/support/Sony-STR-DA3300ES-Receivers-manual/id/3067dj280/t/2/

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Receiver str-v444es no sound on headphones or


discharge the output circuit! If you don't you will blow a 10 ohm resistor every time. I've worked on hundreds of these receivers I know. They need the output circuit soldered at the voltage driver ic's and quite possibly some capicitors replaced on the digital board. The caps mounted near the heat sinks dry up the fastest. These are nice amps. Larry's Electronics Sacramento Ca. ledstiles@hotmail.com

Apr 24, 2010 | Sony STR-V444ES Receiver

1 Answer

I have a str dg820 only about 2 months old. Recently went to power up and I get PROTECTOR message and it shuts down. I checked all speaker connections and they appear to be fine. It worked well for two...


Try disconnecting everything (all inputs, outputs and speakers, make sure there is no cable plugged into your unit except the power cord), turn it on, if it still shows the protect message, you have an internal short or a burnt out component inside the unit, possibly a desoldered contact on one of the connectors which generates internal noise of such intensity that it sends the unit into the protect mode.

If, after trying the above mentioned, there's no message, some other possibilities are:

- a bad speaker or speaker cable
- a bad signal interconnection cable
- a fault in any of the other units connected to your reciever/amplifier

Hope you cand find something out...

Good luck

3rq8 (Triarcuate)

Jul 15, 2009 | Sony STR-DG820 Receiver

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Stops working after a few mins with cd player playing


One of three things: speaker wire short, shorted/or blown speaker, or a bad output chip. First and easiest way to check is to disconnect all speakers, turn it on, turn it up, and wait. If that's ok, begin connecting one speaker at a time with the unit off, then turn on and play. When you get to the speaker or wire with the problem, it will short and go into protection. Disconnect all speaker wires again and only hook up the speaker that shorted the receiver and test. If it shorts, swap speakers with the same wire and test again. If a different speaker on the same wire causes the unit to short, replace the wire. if it doesn't, you need to test the speaker with a multimeter or disassemble if possible, check the wiring internally on the speaker. Check the impedance, should be 8ohms or 6ohms depending on the drivers. then check for resistance. If your meter says 1... it's shorted and needs to be replaced. Hope this helps

May 25, 2009 | Sony STR-V444ES Receiver

1 Answer

Sony str-d715 flasses protector


Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

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Sounds like the output stage is shot.
Here are a few things to try. If there is an option in the manual to reset the unit to factory settings, try that.
If that doesn't work, disconnect all of the peripherals, and select the radio. If you get sound there, you may have a bad cable.

Beyond that I would say the amp needs repaired.

Cheeres

Jan 01, 2009 | Sony STR-V444ES Receiver

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You might have to go into the players setup and select the output and audio stream options. If it is set for PCM only it will not receive the Dolby or DTS signals if you selected them in the DVDs audio selection menu. There may also be a signal select in the Sony receiver to assign the digital inputs to selected units.

Hope this helps

Cheers

May 08, 2008 | Sony STR-V444ES Receiver

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