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My surround system will sound okay when I first turn it on but after a while it begins to chirp very loud and all of a sudden it just cut out with no sound at all.

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Is the receiver clear and dust free? A dusty receiver will trap heat, and heat is the #1 killer of components. If it starts out fine and then after a few minutes stops working my first thought is one or more components inside the receiver are overheating. This MAY be because of dust, or may simply be one or more transistors inside the receiver wearing out.

With some compressed air blow out all ports of the receiver. If you feel brave you may remove the cover and blow it out, but be VERY careful what you touch inside. Some parts will retain a charge for up to a couple days unplugged. Also, you want to make sure you discharge any potential static electricity beforehand as this will also kill components. If a thorough cleaning doesn't rectify the issue there is likely some internal damage and the simplest solution would be a new receiver. :(

Also... make sure once you clean the receiver that it has adequate air flow. Enclosed cabinets may look nice, but can cause problems especially if there are multiple components inside.

Posted on Jul 20, 2010

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Posted on Jan 02, 2017

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