Question about Pioneer VSX-36TX
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?
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
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.
Posted on Nov 01, 2008
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Posted on Jan 02, 2017
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