My yamaha yamaha_rx-v457 does not switches on
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.
Dec 14, 2011 |
Yamaha RX-V457 Receiver