Question about Yamaha Audio Players & Recorders

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AMP My Yamaha amp turns on then immediately shut off, no wires of any kind are plugged into the amp.

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The unit has an internal problem and is shutting down. This is also known as protect mode. Since there is nothing connected at all, the most common cause of this is shoerted output transistors. Expect a parts cost in the $40 range plus the local labor rate for the repair cost.

Dan

Posted on Feb 27, 2009

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I have a yamaha EF2400IS generator that starts fine, but when i shut it down and try to restart it hot it will not start up again until it cools down. Please help.


If it doesn't start but turns over ok. It may be a problem with the magneto / wiring or spark plugs. It seems as though this unit has no automatic shut down. I would try replacing the spark plugs BPR4ES NGK or equivalent and gap to .030, oil 5/30 or 10/30 will do takes less than 1 quart, & air filter (basic tune-up) if not performed in some time. Yamaha recommends every 20 hours. Then try again. Here is a link to the owner's manual. http://www.poweredgenerators.com/yamaha/manuals/ef2400is.pdf

Jul 23, 2011 | Yamaha EF2400iS Portable Generator

1 Answer

My amp cuts off every time I turn it on.. even with n without the wires connected!!!! N if I do cut it on the volume is on -7 n cuts off automatically n won't come back on unless I replug n plug it up...


Does the "protect" light turn's on when it shuts off? If it does then theres a problem with your wiring or worse this might be a Thermal Protect. The amp shuts off because its lacking of voltage from your battery & alternator. Post your system so i could help you further.

Apr 11, 2011 | Yamaha Audio Players & Recorders

1 Answer

14 speakers hooked up to home theater reciever,shuts off .5 vol


Hi,

Try less speakers.
The impedance will be to low for this amp.

Regards,
Gerard

May 10, 2010 | Yamaha P2500S Amplifier

1 Answer

I have an Onkyo AV Receiver and every time I push a button(input selector, turn speakers on or off...anything) the whole system shuts off but i can turn it back on immediately and it's fine till I hit...


Onkyo & Harmon Kardon it a very nice unit and it built very professionaly and very sensitve unit. Its very important that you make sure the correct pole is connect correctly when it come to speakers. the unit come with resetable breakers inside the receiver (safety protection) so you wont blow or short the unit if not connected up correctly. when wiring speakers up from an to the receiver you have to make sure the poles are hook up correctly. positve speaker wire go straight to positive plug behind the receiver same as negative. the speaker wires should have some kind of making on it to mark as either positive or negative. try that and see if that help, if nedd more help.

Oct 02, 2009 | Yamaha RX-V596 Receiver

1 Answer

AMP Power


The unit has an internal problem and is shutting down. This is also known as protect mode. Since there is nothing connected at all, the most common cause of this is shoerted output transistors. Expect a parts cost in the $40 range plus the local labor rate for the repair cost. Let me know if you want to attempt the repair.

Dan

Feb 26, 2009 | Yamaha Audio Players & Recorders

2 Answers

Yamaha rx-v461 not working


you have a faulty circuit somewhere, whether its in speaker wiring, or power source, i dont know, but your reciever has an automatic circuit breaker in it for protection, and a faulty circuit will trip it, i would assume it is a power source problem since it wont turn back on, check wiring, plugs and look around, and smell for burnt, or hot components.

Jan 21, 2009 | Yamaha RX-V461 AV Receiver

1 Answer

Yamaha RX-V992 won't stay on. Starts for a second then shuts off.


Sounds like one of a few things. There is an auto protect feature in most amps and they kick on when one of the following happens. This is assuming that the speakers are plugged in when the problem happens. If not, the power supply is shot or some other non user serviceable problem is happening with the amp.
A. Speakers are out of phase B.The Speakers are way to large for the system C.There is a short in one of the speaker lines. D.The speakers are blown or shorted. E. Last but not least, the power supply for the amp is going, going gone. It could also have gotten some moisture.

Not to be redundant but try some of this. Take a new speaker wire, not the old.
1.Check the phase. For all speakers. Make it the same all the way around,
+red or white stripe, to the red terminal and -black or non striped to the black or negative at the amp and speakers.
2. Start with all speakers unplugged and plug just the right front in. Test it.
If it works ok, then plug in the second speaker, again by itself. Test it.
on and on. By process of elimination, you should be able to isolate the problem. That is of course, if it has anything to do with the speakers.

Jan 05, 2009 | Yamaha RX-V992

1 Answer

Immediate shut


Unplug all the speaker wires first, then unplug the unit from the wall for at least 24 hours, The plug back in without the speaker wires or anything else plugged in. Then see if it goes to the protection mode. If it does not, plug in each speaker at a time, and see if any speaker, when hooked up, makes the receiver shut down. If it does shut down, My friend, I'm afraid you will need to take this unit into a repair shop, OR get a new unit. Good Luck

Jun 06, 2007 | Yamaha RX-V630 Receiver

2 Answers

Yahama receiver Rx-630 not working


The problem might be caused by two major circumstances. 1)Touching wires 2)Overheating. I suggest you unplug all wires connected to the amp then turn on the amp. If it gets turned on then we know that the problem is that you have touching wires. If there is a short circuit somewhere, get rid of it. The ventilation is another important issue that you have to pay attention. It simply causes overheating.

Jun 05, 2007 | Yamaha RX-V630 Receiver

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