I have had my pioneer vsx-d3s for many years now and it has served me flawlessy, that is until recently. I get a crackling static sound out of ONLY the left front speaker and it is intermittent(comes and goes) and usually starts to happen after about 10 minutes of the unit being on. Yes i have tried a different speaker and get the same results, the speakers are polk audio rt-12's so i did not blow them as they are rated to 250watts rms. All other channels sound perfect and so does the left at first. i dont think its an overheating issue as all the others channels sound fine and yes the fan does work. I am just at a loss for why the staticky sound is happening and why its only the left front and why it comes and goes. it makes the sound regardless of wether music is being played or not which also pretty much confirms that its not a problem with the speaker.
Any help advice or hopefully a solution would be greatly appreciated.
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Re: static and crackling sounds
Sorry to burst your bubble my freind but things do wear out as you had plenty of life out of this unit.. Your problem is a transistor or a driver IC is breaking down under a load and heat and will get worse to where you wont be able to use the unit.. It will probable cost you in a range of 200 bucks or .more!as there is no quick fix for a solid state unit that has no user serviceable parts inside. Its just not replacing the bad part , its the hooking up to the load resistors then seeing that several other parts are not up par and having to start rebuilding the amp statges of your reciver.. If its more then 8 years old Time to landfill it and get a new one .. Put it to rest. It dosent owe you anything as its been loyal to you all these years!! Good Luck
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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
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!
All you have to do is connect the coaxial out from pc to any audio i/p at the back of vsx d512.but ensure you select the right channel to play the audio ( eg. tape i/p select tape at front control, aux i/p select the aux at front control )