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Audio receiver (Pioneer VSX-804RDS) rather suddenly started to be really loud when turned on, problem seems to be the fan/fan motor

I opened unit and tried to clean with dust remover, but that didn't change the noise level; added complication: unit was bought in Germany (some 20 years ago), gets 220V via a transformer; replacing fan motor looks complicated - worth it?

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4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Gurudristi
  • 98 Answers

SOURCE: Pioneer VSX-D209 receiver shuts off when too loud

Dear Tabasco,

Your receiver is basically going into protect mode.

Just check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Take out all the wire and put them back again if necessary..
Some times even a little tiny frayed wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.
Just check your speaker as well....whether they play all right thru another receiver or amplifier. its posiible they might be shorting inside. A little frayed wire could also trigger the protect circuit in your receiver.
I hope this should solve your problem.

If everything else seems all right and still your receiver shut down when you raise the volume then it possible that there are bad connections on the main board that are set in.

This would generally happen if the system is slighly old or have dry solder and when you raise up the volume. This should be a simple repair that will not require parts. If you can solder, you will be able to repair this yourself. If not, then a local service center will change the local labor rate.
Hope you can sort out your problem with the above trouble shooting. Let me know if I can guide you further.
Best of luck! Thanks for using FixYa!

Posted on Apr 21, 2009

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dunnbiker
  • 8546 Answers

SOURCE: Pioneer Receiver SX-750: Getting a loud hum through the speakers

The hum you hear from the speakers and from the unit itself originate with 60hz AC power. They may not actually be related. Sometimes a transformer will hum slightly and unnoticeably. That you're getting a loud speaker hum says there is an electrical leak or a grounding issue somewhere.

Do all sources produce the hum or, say, just the phono? How about on headphones? Try rotating the AC plug. In those days they weren't keyed with one large blade as they are now.

Posted on May 17, 2009

  • 30 Answers

SOURCE: Pioneer VSX-D411 receiver "Amp Error" message

Hello,
Unfortunatelly your receiver has failed. The front panel is telling you one of the power modules is probably bad. Not an DIY type of repair. These parts are near $40.00, plus cost of replacing.
Look at options to replace your trusted receiver with a new one.
Good luck

Posted on Aug 02, 2009

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