Question about Sony STR-V444ES Receiver

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STR-V444ES just hums

Can you tell me if this is fixable no sound just hums out of output and headphones can hear all switch working when switching

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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

Posted on Jan 01, 2009

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Posted on Jan 02, 2017

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Why does my lowrey organ not make a sound after I have switched it on?


This is a generic answer for this kind of question.
When there is no sound
Check the obvious.
Is there a light on the organ indicating it is on?
  • Plug it in to a known working wall socket, switch on at the wall
  • Switch on at the organ, check light
  • Very old keyboards need a voice to be selected!!
  • Turn master volume up
  • Turn any other volumes up
  • i.e. lower manual volume
  • upper manual volume
  • swell pedals down
Sometimes a sustain pedal plugged into a volume pedal socket will mute the output, check this.
Headphones out, most headphones will turn speakers off, sometimes the headphone switch can be dodgy, work the headphone plug in an out a few times
There maybe a switch that turns off the speakers, look near the output sockets
Software volumes up, check display, if any.
MIDI instruments, check local control is ON
Still no sound?
Can you hear anything from the speakers?
Hiss or hum usually means the speaker is ok
Total silence may indicate speaker failure, but only if there is one speaker, as in older home organs, or smaller keyboards
Try headphones next, TURN Down master volume first just in case!
If there is some sound, very quiet and gross distortion then possible power amplifier failure.
If your instrument has any kind of line out as well as a headphone jack, try these.
The line output will likely be a pair of phono sockets,like you have on HiFi equipment, 1/4 inch, 6.35mm jacks, like the bigger headphone connector, a 3.5mm socket like the smaller headphone connector, or even a DIN connector on older equipment.
Connect these to the aux (or Line or CD) input on your HiFi, guitar amp or similar. (some times these outputs will drive headphones, usually you will only hear anything in the left side). If this works then it is very likely the power amplifier.
Further tests on MIDI equipped keyboards would be to see if the MIDI does anything.
If MIDI out works and there is no sound, and MIDI in makes a sound this points to local being off, buried somewhere in the menu will be local on or off, make sure it is on.
If MIDI out doesn't work then the failure is likely to be internal power supply or something else critical (not nnecessarily major).
Power amplifier failures in newer, low power, keyboards are often the power amplifier chips (i.c,s), older amplifiers may have just blown their fuses but one or more output transistors may have failed.
Cost of repair will be down to the time it takes to get to the fault, taking these to bits and putting them back can take a lot longer than the repair.!
Hope this helps, Chris the Fader

Aug 28, 2016 | Music

1 Answer

Sony STR-V444ES "Protector message"


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,

Nov 27, 2012 | Sony STR-V444ES Receiver

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.

Jun 21, 2012 | Sony STR-V444ES Receiver

1 Answer

Hi - I have a Sony V444ES receiver that I have four speakers on A (in house) and two on B (outside). I hooked up a third speaker (rock speaker) for outside use however the sound is very low compared to the...


What's a rock speaker? All you will hear with one speaker on the Rear Right output is the Rear Right channel which is typically for effects and ambience. You DO have a manual, right?

Individual speakers commonly have different responses given the same amplifier input. Where you physically place a speaker once it's electrically connected is up to you. Speakers placed outdoors might not have the sound-re-enforcement of nearby or adjacent walls as indoor speakers do so they will sound weaker.

Jul 11, 2011 | Sony STR-V444ES Receiver

1 Answer

No sound


Hello
If picture is OK and there is no sound output from your tv, means either its speaker or the Sound output Ic is not working. The case of speaker fault can be easly detected without opening the TV. You just place your ear very near to the speaker side and switch on the TV by AC mains [not with remote control]. You may hear a "thumb" SOUND OR A "HUM" sound from it. If any one is there the internal speaker is working fine. The fault lies in audio output Ic stage. If there is no sound said above, speaker can be suspected. Befor confirming that the speaker is faulty, if your TV has an earphone or headphone jack in front, insert the earphone or headphone socket into it, and check whether there is any sound heard from it. If there is sound from headphone, means that the headphone socket is faulty, it does not bypass the sound to the speaker. When head phone is connected, the connection to the speaker will automatically cut of. When it is pulled out from the socket, the speaker connection will resume. If the changeover switch inside the earphone socket also show this kind of trouble. If the speaker inside is found faulty, unscrew it out of place after opening the TV, go for a same type and number, impedence and shape.
If there comes the above said "HUM" sound from the speaker, surely the Sound Output Ic is faulty. Replacing it will solve the probelm. Before replacing it, check it soldering points for any loose contact. It is best to resolder all suspected point is sound section before replacing the ic.
Note: In modern TVs there will be any trace of sound, without a video signal. Without video, sound is muted. ok.

Nov 07, 2010 | Toshiba CF19H25 TV

1 Answer

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

Got a humm noise when I turn receiver down,it does it on all functions what is it


Chances are it's the Large Electrolytic Capacitors in the power supply. As you have it on all functions. These are to filter out the 50/60HZ hum in the mains supply and so that's most likely what you are hearing!

Feb 24, 2010 | Sony STR-V444ES Receiver

1 Answer

Sony Receiver STR-V444ES and Blueray


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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