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Yamaha 5450 shuts off as soon as i turn it on stays for about 2-3 secs then turns off? any ideas

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6ya6ya
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Posted on Jan 02, 2017

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walesarumi
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SOURCE: Yamaha RX-V793, Turn it on, 2 sec later turns off

Hello, welcome to Fixya!

Your receiver is having a power fault because it is not switching on. The receiver might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

First, remove the unit's power cord from the wall, wait for about 30mins, then plug it back in. If it doesn't power on, plug it into another outlet, to make sure there electric current entering into the receiver.

If plugging into another power outlet doesn't power it on then it confirms that the receiver is having a power fault.

When electric current comes from the power outlet into the receiver, it goes straight into the power supply board which then circulates the current into the unit. So if the receiver doesn't power on, the first thing is to make sure there is power entering into the receiver.

So check the power cord, if it is a 3-pin plug, it must have a fuse in it. check the fuse if it is not blown. if fuse is intact, then power supply board should be checked.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter and continuity tester in order to read the components on the power board. Once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect and solve the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Good luck.

Posted on Jan 11, 2012

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  • 6771 Answers

SOURCE: yamaha rx-v371 shuts off 2 secs after turning on

Return unit to place of purchase, this is clearly a manufacture defect. The warranty will cover full replacement, do not allow them to attempt repair on the current item because you will be back and forth until warranty runs out.

Posted on Apr 02, 2012

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