Question about Sony TA-E9000ES Amplifier

7 Answers

Popping sounds when changing volume

Hi folks, one week ago I bought a TA-E9000ES as a bargain. At low volume level everything is fine, but cranking it up to -30db or so humming sounds occur, changing to membrane-shaking pops and booms at even higher level.

I´ve been searching all over the www, found service manuals and bulletins and more but nothing according to this problem.

My 9000´s software is 2.01; I´ve already tried any realease down from 1.10 but no cure.

Maybe someone here can give me an advice. Thanks a lot!

Posted by on

7 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,512 Answers

Hi smelly :)

The humming sound is associated with pops and crackles will be a DC offset voltage getting into the DC coupled stages of the power amp. The humming is the power supply sagging under the excessively high current being drawn. Not a good idea to continue using it in this condition. I am very surprised that the speaker protection is not kicking in, and may even have been modified in some way for it to NOT engage by the previous owner of a patch it up back-yard tech. . This could well blow your speakers and damage the amp extensively. I would advise not to use it into speakers at this point.

We may have to to and fro a little to get to the bottom of it if you can answer a few questions to eliminate some things

Firstly, is it there on all channels.

regards
robotek

Posted on Oct 26, 2008

  • Graeme Ross
    Graeme Ross Oct 26, 2008

    If the pops appear to have been coming from all channels, you may have a power supply rail failing producing the DC offset. This could be to the preamp stages, or even the main rails to the power amp. A dry jointed rectifier smoothing cap (the biggest ones in the amp) may also produce the symptom.



    Do you have anyway of setting the amp up on a bench top with the lid off for some tests. A pair of old headphones would be handy also, rather than blow you speakers.

  • Graeme Ross
    Graeme Ross Oct 26, 2008

    oh, just realised, this just the preamp processor. Forget the comment about speaker protection being modified. BUT still be wary using it unless you can reduce the gain right down on your poweramp.



    Do you have the ta-n9000 as well?



    Can you comment back when you get any of this post please. Cheers

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 859 Answers

If you can wait for one of our sound system techs to see this, you'll get a definitive answer.

Me, I think its ground loop feedback from your description. The wall sockets you're plugging into may not be grounded properly themselves.

Repeat first sentence.

Regards,
Worldvet

Posted on Oct 26, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,239 Answers

Hi sir please check the speaker ratings what you have so that it can vary  to humbling sound[how much watt speaker you are using sir].. if any assist i am there to solve it// thank u..rate it

Posted on Sep 10, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,847 Answers

The cracking and humming sound is because of the improper earthing

Posted on Sep 10, 2008

  • Legin Varghese
    Legin Varghese Sep 10, 2008

    I am sure that you might be using the Knob for changing the volume. Many time due to carbon settled on the circuit board of the knob cause the cracking sound. if that is not the case revert back..



×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 899 Answers

You will need to replace the power amp IC and the pre amp and it will need to be tested to make sure there are no other components that need replacing

Posted on Oct 26, 2008

  • 2 more comments 
  • jason Oct 26, 2008

    the humming sound is probably from the voltage put into the power amp for amplifying but is not fully amplifying the audio stream in

  • jason Oct 26, 2008

    I say pre amp also because that may be the cause for the power amp failing in providing a clear signal to the power amp

    and there may be a component causing this pre amp to fail also

  • jason Oct 26, 2008

    if you continue to listen to it then keep it low and don't use it much untill you can get the repair done



    electech

  • jason Oct 26, 2008

    but get the repair done soon! or you may be buying a new set of speakers!

    because if it completely fails and a full voltage is sent thru the amp then your speakers will blow in an instant

    there is no telling what the amp will do at this point except that its on its way to failing , it may just quit or just keep sending voltage out and blow any speaker you hook up

    I would advise getting the repair done imediately

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 163 Answers

Use speakers of higher RMS than amplifier's output and see results.

Posted on Sep 10, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,665 Answers

Ampifiers output filter circuit needs to be checked . Better take it to a special electronics service station to troubleshoot it

Posted on Sep 10, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hi guys. Having a problem with my NAD T163 Surround Sound Decoder. Popping in front left and right speakers when changing audio selection. Works well other than that. Please give me some suggestions w


Could be DC voltage on the speaker output line, but this will generally keep your receiver audio output turned off completely. Could be a bad muting transistor or microprocessor IC(computer within your NAD). If you are interested in having your NAD repaired, please visit my website at audioserviceclinic.com.You may contact me there. Thank you..

Jan 01, 2014 | Sony TA-E9000ES Amplifier

1 Answer

We look for remote control use fro TA-E9000ES


Try the Sony consumer website or a place call mrremote (dot) com

Nov 30, 2010 | Sony TA-E9000ES Amplifier

1 Answer

Sony TA-E9000es. No Display, No Sound. Software Ver 1.18. Has Bulletin HIFI1-99-028R1 performed. (Add capacitor, replace resistor)


also replace Q108 @ Q109 on power board. If that does not fix it then also replace PH101 & PH102. Also on Power board.

Jan 14, 2010 | Sony TA-E9000ES Amplifier

1 Answer

I have 2 questions will my SONY TA-E9000ES preamp work with my SONY STR-DG720 7.1 RECIVER and what SONY ES Amplifer was spefically made to work with the TA-E9000ES WHEN IT WAS ORIGANLY PRODUCED


Here's a page for the 1st one

http://home.online.no/~espen-b/ta-e9000es/

It will work with your 7.1 receiver. Just use one of the inputs on the 7.1 to connect to the Pre-amp

PLease rate my help if this helps

Thanks

Nov 04, 2009 | Sony TA-E9000ES Amplifier

2 Answers

Sony e9000es preamp. no LCD light


Hi John. It can be fixed, and most probably relates to the power supply. There is a Sony repair doc that lists low or no display, but also associated with no audio. 
Here is the information regarding the problem. 
The power supply is the main culprit for most of the TA-E9000ES failures. Symptoms of this are no sound and a very dim or no display. Apparently the power board has several weaknesses which have caused Sony to supply a modified version in later production units.The circuit around transistors Q108 and Q109 are prone to oscillation, which will cause one or both transistors to break down, as well as resistor R124. This resistor is originally a surface mounted device capable of 1/10 watts of heat dissipation. The modification suggested by Sony is to replace this 4.7 k ohm resistor with a 1 watt rated version. Also, to prevent further oscillations a 100 pF capacitor is added in parallel with R153.
(Some suggests that also transistor Q110 is a candidate for replacement.)
The US issued service bulletin from Sony suggest that this fault may occur with units having a serial number in the range 800001 - 802746.

If you still have sound, then there may well be a problem elsewhere. It is a great Preamp, and I recommend you get it fixed. A Sony Authorised service center would be the best place to take it. They supply good inside information about this most problems that occur on their gear. There is good info on your preamp controller here

Feb 02, 2009 | Sony TA-E9000ES Amplifier

2 Answers

Power on but no led display


"Power board:
The power supply is the main culprit for most of the TA-E9000ES failures. Symptoms of this are no sound and a very dim or no display. Apparently the power board has several weaknesses which have caused Sony to supply a modified version in later production units. The circuit around transistors Q108 and Q109 are prone to oscillation, which will cause one or both transistors to break down, as well as resistor R124. This resistor is originally a surface mounted device capable of 1/10 watts of heat dissipation. The modification suggested by Sony is to replace this 4.7 k ohm resistor with a 1 watt rated version. Also, to prevent further oscillations a 100 pF capacitor is added in parallell with R153. (Some suggests that also transistor Q110 is a candidate for replacement.) The US issued service bulletin from Sony suggest that this fault may occur with units having a serial number in the range 800001 - 802746.
Serial numbers 80#### are for the US/Canadian version.
Serial numbers 50#### are for the european version."

http://home.online.no/~espen-b/ta-e9000es/#faults

Aug 26, 2008 | Sony TA-E9000ES Amplifier

1 Answer

Zone B of Sony amplifer seems to have stopped sending most of signal


Hi, please have a look at your supply. The voltage might have gone below 21V on your newer models and 42V on your older models. This you will find near the pre-amp. Look for 2 big Cap's and start from there.

May 27, 2008 | Sony TA-E9000ES Amplifier

2 Answers

TA-N9000ES Amp - Standby light constantly blinks - no sound


The flashing light is indicating that a fault has been detected, and it is staying in "protect mode". First disconnect all cables from the processor (except the power cord) and then power up the processor. This will eliminate the possibility of a shorted cable or a problem with any connected components. f the light still flashes, there is an internal problem and the processor will require profesional service.  

Oct 09, 2007 | Sony TA-E9000ES Amplifier

1 Answer

No sound or picture


I always look for back stk Ic's in these. not the outputs but in the output driver stage. copare voltages with the other stk's . Does one of them have higher voltages? Like instead of 1.3 volts it has 4 or 5volts? if so it's bad. you can find these Ic's on ebay , I did. also upc2581 driver ic's can do this. Larry

Aug 31, 2007 | Sony TA-E9000ES Amplifier

1 Answer

Channels going out


Could be the speaker relays on the circuit board

Feb 07, 2007 | Sony TA-E9000ES Amplifier

Not finding what you are looking for?
Sony TA-E9000ES Amplifier Logo

161 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Players & Recorders Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

kakima

Level 3 Expert

98608 Answers

 Grubhead
Grubhead

Level 3 Expert

4678 Answers

Are you a Sony Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...