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I replaced a fuse that had blown and since then the receiver will turn on but shuts off after a few secondes. From reading the online info they say I need to do a reinitializing procedure but I cannot find out how to do this or if this will even fix the problem. AV-988

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The reason why the fuse blew out is because the amplifier itself is shorted out. It turns off because amplifiers are designed to do that when it's overloaded. It needs to be serviced by a technician.

Posted on Jun 28, 2009

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When I turn on the STAV-3770, after the five seconds for the inital click that is ready to go, the unit turns off and back on and keeps repeating this process.


Most of these units come with a replaceable fuse in the back (about the diameter of a penny). I believe that the unit will shut itself off if the fuse is blown. Excessive use, moisture or a power surge will blow the fuse. Radio shack may have a replacement for you to buy. I would try this first, as it is a fairly inexpensive solution. If it turns out that you have a more serious electrical problem with the unit, I would consider replacing it. The new 5.1 systems are cheaper than ever, more energy efficient and sound better to boot.

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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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Look at inside at capacitor and fuse but they seem ok. again once i turn it on, it would automatically shuts off after a second.


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