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Our Yamaha RX-A730 won't turn on. It's less than 2 years old. It's plugged into the same surge protector box as other electronics and they all work fine. Is there a reset button or fuse box?

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Posted on Jan 02, 2017


SOURCE: my yamaha rx-v461 won't turn on

Check the main fuse

Posted on Aug 22, 2008

  • 1901 Answers

SOURCE: C4180 Won't Power On

Make sure the plug is all the way into the AC adapter. Then, you will need someone to verify the output of the AC adapter. You should have a 16VDC and a 32VDC output from the adapter. If that is good, you have an internal problem with the printer. If the output voltage(s) are missing you will need to replace the AC adapter.

Here are the specs:

  • Input voltage: AC 100 to 240 V ~ 1 A 50–60 Hz, grounded
  • Output voltage: DC 32 Vdc===940 mA, 16 V===625 mA
  • HP part# 0957-2146 Call 1-800-227-8164 for availability.

  • Posted on Nov 19, 2008

    • 285 Answers

    SOURCE: Apple computer eMac will not turn on.

    You wil need a new power supply unit.

    Posted on May 24, 2009

    • 19396 Answers

    SOURCE: Protector flashing

    Protet mode is a special diagnostic mode that starts when a fault is detected.

    When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

    Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

    Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
    If that was the problem, you will not get Protect when plugging back power cable.

    If you do all the above and still get Protect, then there is a real fault.

    In that case the unit may be disassembled and tested to find the fault.

    If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

    Posted on May 29, 2009

    • 6993 Answers

    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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    Surge protectors only protect equipment up to a certain amount of joules. Basically if the lightning is powerful enough it can damage electronics with that initial surge. You should replace your surge protectors every few years if it is 2-3 years old then it may not be as effective.

    Post back if you have anymore questions or comments. Thank you for choosing Fixya!

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