Question about Yamaha RX-V520

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Rxv-520 my receiver overheated and shut down fuses are good.what should i check next?

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Hello, it is worth checking that there is adequate ventillation around the unit, especially if it is in a cabinet. Also check that there is no dust clogging the vents on the unit. Another cause for overheating is using speakers that require far more power than your receiver can provide, or speakers with an ohm rating that is lower than the amplifier provides. Also, check to see if any wires to the speakers are crossing over as shorting will cause the amplifier to overheat and cut out. Hope this helps.

Posted on Aug 01, 2009

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Go here at Sony for some ideas to try when PROTECT shows on your machine. https://us.en.kb.sony.com/app/answers/detail/a_id/39211/c/65,66/p/41901,43145,92877,44396/

It seems the main amplifier chip / circuit may be overheated or short circuited and is now permanently faulty and need replacing Generally means desoldering the chip and replacing.

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If a fuse was blown, it likely would have no power. However if the power board has overheated, the capacitors may have swelled up and burnt out and will only allow it to power on for a few seconds, then shut down. The capacitors can look swelled up or burnt or have burn marks on the power circuit board. You can test them with a continuity meter. Each component has a printed number of it's voltage and ohm resistance so you can test them.

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Ahh technics. Technics always had overheating problems, trust me. Every since they started, their amps would get so hot they would hurt to touch. The reason the fan is not coming on seams to be something inside the circuit board. I'm sure that technics could fix this. If the fan works out of the receiver, then it must not be the fan. ;P

I would maybe get a computer fan, and just put it on top of the receiver and turn it on, or send it in for fixing. Also, do you have to crank the volume to get the speakers to play at your volume, and does the impeadence match the receiver. Because you may be pushing the receiver too hard.

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