Question about Pioneer VSX-36TX

2 Answers

Pioneer VSX-36TX popping and crackling during warm-up period

My Pioneer Elite VSX-36TX recently started sending popping and crackling sounds through all of the speakers. Once warmth can be felt through the top of the unit, lightly tapping the top of the housing makes the very annoying noises cease and they do not return.

Is this a problem which I can fix by replacing an internal part so I do not have to fork out a ton of money for labor? If so, what is the part description and number PLEASE?

Posted by on

  • gooler Feb 16, 2009

    Thank you iiordanovv! Your recommendation to add slight pressure to bow the "DSP board (encased in a metal enclosure to the very right of the amplifier)" immediately stopped the sounds. I placed a small piece of cut and folded radiator hose between the metal enclosure and the green board.

    It has been two days and I have yet to heard the annoying noises.

    I am very appreciative for your time and effort in solving my problem.

  • Anonymous Mar 28, 2014

    every now and then the speaker crackles. how do i fix this
    \

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

I have the exact same amplifier with what sounds like the exact same problem. I opened up the amplifier, and while it was powered on started tapping around until I heard the popping and crackling suddenly increase. I was using a piece of wood and the plastic part of a screw driver for this. The popping and crackling suddenly burst out onto all channels when I was tapping on the DSP board (encased in a metal enclosure to the very right of the amplifier).

I took off the metal enclosure (with the receiver turned off, of course :), and with the receiver on, and started tapping around the DSP board, and I found that the biggest crackling effect was achieved when I tapped on the Cirrus Logic CS493292-CL chip which does all the decoding and switching.

I detached and took out the DSP board and looked at it very carefully but of course couldn't find any bad connections. I tried resoldering all the feet of the Cirrus Logic chip and many many components all around to no avail.

Finally I tried applying pressure to the chip while the popping was going on, and it stopped. Further investigation revealed that bending the board around the chip produced the same effect.

For the life of me I couldn't figure out why bending the board eliminates the problem, but my solution was to put a piece of eraser wrapped in masking tape and taped to the Cirrus Logic chip, and two other pieces on the back of the board in such a way that when the metal enclosure was replaced onto the board, it put gentle but firm pressure onto the Cirrus Logic chip and at the same time bent the DSP board slightly.

It's been a few days without popping, clicking or static, but time will tell. Good luck!

Posted on Feb 05, 2009

  • Iordan Jul 19, 2009

    Let me share with you the permanent solution to my problem, as narrowing it down took a long time and it may be of help to others. Also, let me say up front that this permanent solution requires soldering skills and a very steady hand.

    The problem actually turned out to be a loose connection (invisible to the naked eye) on what appears to be a small memory chip to the right of the big Cirrus Logic chip (CS493292-CL). This chip is very near the top of the DSP board, and pressing it down in my case was making the noise disappear. Bending the board was causing the loose connection with this chip to get connected, but I wasn't completely satisfied with the solution. Hence, I set out to finally and completely eliminate the problem.

    I tried many ways of diagnosing the problem, and I'll include two that didn't help to save you trouble:

    1) I tried spraying individual components with a special freezing spray, but this spray would help in diagnosing a faulty chip or capacitor, and it didn't help as much to find the loose soldering connection

    2) I tried tapping components with a piece of plastic in order to provoke the crackling, but this gave lots of false positives, because the vibrations were affecting the entire board and the loose connection was excited by tapping a totally different component.

    WARNING AND DISCLAIMER: Powering on the amplifier with the case off is
    dangerous and must be done very carefully. Be sure there are no
    children and pets around. Also, only do this if you are confident of
    your abilities to avoid getting electrocuted! Also, be careful to first ground your hands thoroughly by touching the case
    of the amplifier to avoid damaging the components. Also, don't touch anywhere NEAR the main transformer,
    because that's where the 110/220V lines go.

    What did help was to power on the amplifier with the metal enclosure of the DSP board *off*, and while hearing the crackle to very carefully, taking very special attention not to shake the board, gently press on individual components with my finger while supporting the board. The idea is to press gently in order to avoid bending the board and fixing the problem from a distance.

    Once I pressed on the memory chip I mentioned at the beginning, the crackling disappeared immediately. So I let the amplifier cool again, powered it on, and repeated the test successfully.

    After identifying the component, I took a soldering gun with a very, very fine tip, and "reflowed" the solder *without* adding *any* extra solder. What I basically did was to put the tip of the soldering gun down on each pin of the chip individually for a few seconds, until the solder became shiny. This told me that the solder has been melted and no more heating is necessary.

    Be extremely careful not to solder two pins together. For this, you need three things:

    1) A steady hand
    2) A fine soldering tip
    3) NO SOLDER ON THE FINE SOLDERING TIP

    If solder gathers on the tip, wipe it off with a wet sponge and wait for the gun to warm up again before continuing. If despite all your best efforts you do manage to solder two pins together, they can be separated in three ways:

    1) Solder ****** (see Wikipedia for information)
    2) Solder wick (see Wikipedia for information)
    3) Utility knife (dangerous for the board)

    After reflowing the solder on all the pins on the component you identified, the problem should be gone. I hope this guide is useful to somebody else!


  • Emmanuel Umukoro
    Emmanuel Umukoro Oct 03, 2016

    hey i have thee same issue bought a usedd unitt the guy didnt tell me about this. do you think reflowing using a smd reflow kits heat gun would work?

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 227 Answers

I had the same problem before and all i did was resolder a lot of loose connections on the whole unit, the only problem is that you have to take it apart carefully, also a bad capacitor can cause the same effect.


good luck


caypianan@yahoo.com

Posted on Nov 01, 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

Where can i find diagram for bad soldering for pioneer elite VSX-27TX stereo receiver?


You really should be an expert to do repairs on these recivers but if that is the case, you can get the maintenance manual here:
http://www.kallhovde.com/pioneer/tricomp/Audio/VSX/VSX-24_26_27_29_D908S_RRV2133.pdf

Jan 02, 2016 | Pioneer Audio Players & Recorders

1 Answer

I HAVE A PIONEER VSX35 ELITE RECEIVER THAT HAS BEEN OVERLOADING. IT SEEMS TO NEED MORE VOLUME TO MAINTAIN NORMAL LEVELS. IT CYCLED OFF THEN CAME BACK ON TWICE. NOW IT ACKS LIKE THERE IS NO OWER, ONLY RED...


Having a live-and-kicking VSX-36TX receiver which I love, I feel for you. But the prices have come down dramatically since we bought them. I paid $1200 for mine new. If I needed to replace it I would go with a used one from eBay and consider searching specifically for one that uses the same remote but doesn't have one included. The price would be low.

Like this beasty, no remote for $250 delivered:

http://cgi.ebay.com/Pioneer-Receiver-VSX-1014TX-Multi-Channel-Receiver-/150581038944?pt=Receivers_Tuners&hash=item230f544f60

or this one with a remote for $232 delivered.
http://cgi.ebay.com/Pioneer-VSX-516-S-7-1-Channel-Home-Theater-Receiver-/250783994297?pt=Home_Theater_in_a_Box&hash=item3a63e411b9

Apr 11, 2011 | Pioneer VSX-36TX

1 Answer

I have a Pioneer VSX-36TX and some of the speakers are not working. What part do I need to replace?


Some speakers?

Let's start with following the manual, then come back with specific issues.

There are a lot of pieces to be filled in. Setup, sources, speakers, cabling...

Register and download the manual for free at retrevo.com


http://www.retrevo.com/support/Pioneer-VSX-36TX-Receivers-manual/id/386ag008/t/2/

Mar 09, 2011 | Pioneer VSX-36TX

1 Answer

I have a pioneer elite vsx 36tx receiver that quit working. When I turn it on it just hums. It seems like a power supply but not sure.


I have the same receiver.

Do you mean there is an audible hum from the unit, or that speaker output(s) hum?

Let's figure out what DOES work...

Do you get the audible relay click a few seconds after power up?

Does it tune FM?

Can you get the On Screen Display? Settings all ok?

What preceded this? RSVP.

Jan 19, 2010 | Pioneer VSX-36TX

1 Answer

I have bad static from my Pioneer vsx 49 Elite


sorry no easy solution as it sounds like the output transistors blew out or the emmitter resistors. you will need a service manual and an multimeter to measure the resistors on or around the audio output transistors they are a low value resistor usually around 1 to 2 watts in size. Do not replace any bad , burnt or discolloered resistors around the audio output transistors as if tou do you might just cause more damage to the output transistorsor audio output stage including the audio driver stage of the amp!!!!!!
Larry Dillon

Aug 27, 2009 | Audio Players & Recorders

1 Answer

Can i get true hd audio through a pioneer elite vsx-36tx


I have found out that using a Blu-ray player that has built in true-hd decoders and a 5.1 or better analog out to my six channel input that my problem will be solved. I was advised that the Panasonic BD-55 was a good choice since both the analog and bitstream feeds are always active without changing settings.

Thanks for your help.

Dec 11, 2008 | Pioneer VSX-36TX

1 Answer

Popping noise and loss of sound


Check the preamp Coupling Capacitor, which might have lost its value, or might have leaky dielectric.

Feb 24, 2008 | Pioneer VSX-D409

Not finding what you are looking for?

Open Questions:

Pioneer VSX-36TX Logo

703 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pioneer Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

4872 Answers

John
John

Level 2 Expert

509 Answers

Dennis McCollum

Level 2 Expert

137 Answers

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

Answer questions

Manuals & User Guides

Loading...