Question about Yamaha RX-V496 Receiver

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My yamaha rx-v496 will only come on for about 1/2 second then off.

It was working fine before but when I connected (2) 8 ohm speakers after a short while it went off. I disconnected all wires and still will not stay on. the fuse is good.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Yamaha RX-V1500 Shuts down after 2 seconds

This set is getting old and is in the Archives section of the Yamaha consumer guide area. But, you can still download the owners manual if you need one. If it is going into protection mode even when there are no speakers connected OR when the sound level is very, very low or zero it is not good news. Yes, unplugging the line cord will cause the protection system to reset itself. But, if it shuts itself off again soon after rebooting it is a sign of bad grease in the output stages -- in all probability. Let me explain: The audio output transistors are mounted to a large heatsink which keeps them cool during operation. They are electrically isolated from touching the heatsink by an electrical insulating washer. But, in order to keep them cool and allow for good thermal conductivity of the heat generated by the output transistors the washers are treated with a heat conducting grease. Over time this grease will dry out and lose its heat conductivity ability allowing the temperature of the transistors to rise; as the heat goes up they conduct more current and cause the protection system to activate and shut the set down (in order to avoid damage to the set). That is the most common cause of your symptoms. However, there are several other possibilities, but I give this explanation a 90% probability based on my experience.

Posted on Jun 17, 2007

  • 1 Answer

SOURCE: Yamaha RX-V657 Zone 2

Suggestion by clarkent22

I called and spoke with Yamaha support staff (Chuck) who was very helpful. I was able to get my issue resolved hopefully this works for you too.

Couple of solutions:
1) Go into the Menu setting (Manual SetUp/Speaker Set) and make sure that you do not have Presence Speakers or Suround Back Speakers
2) Also in the Menu settings (Manual SetUp/Options/Multi Zone Settings) make sure that your Zone 2 Amplifier is set to "Int" (assuming you are not using external amp
3) Zone 2 can only accept an analog signal (not digital)... so there are two steps to this one. First, make sure that you either run only analog, or if you run digital and analog then you need to select "Analog Input" on the front of the unit. If yours was working earlier, my guess is that your input settings got switched to digital (or auto) You need to have analog set up for each specific external source (DVD, Cable/DTS, etc)....
4) This model receiver will only let you control Zone 2 with the remote control. You can power it on the receiver unit. But to select your source you have to press the Amp button, then the ** button. Then you control Zone 2 and you can toggle sources and adjust volume. (Check your owners manual for programing remote for zone 2.. think I pressed the "code" button and then 2999.)

Hope this helps... it worked for me If not call Yamaha they were very helpful.

Posted on Dec 05, 2007

  • 125 Answers

SOURCE: Yamaha RX-V995 receiver turns on & then powers off 2 seconds late

I suggest you run self diag.  press [FM/AM] key + [Input mode] key and press the [power/standby] switch.

ps prt = power supply problem
dc prt = shorted output or leakly cap in channel
tmp prt means to hot on heatsink

you'll likely have to measure the resistances of the output FETs to find a short, 

Posted on Feb 03, 2009

  • 1 Answer

SOURCE: yamaha rx v1800 receiever will only play tuner on zone 2 speakers

Solution on page 111 of the owner's manual:

"Connect the source component to the analog audio input jacks of this unit to play back the source in Zone 2 or Zone 3.
This unit does not output the audio signals input at the DIGITAL INPUT and HDMI jacks to the ZONE OUT jacks."

Basically you cannot use an HDMI input if you want to play in Zone 2 or 3. A simple solution is to add an extra audio cable from your PS3 audio output jack to an analog audio input jack on the receiver.

Posted on Apr 03, 2009

  • 1 Answer

SOURCE: Yamaha RX-V2400

Had same problem. Display would read, "Check Speaker Wires". Rear speakers were shorted by a carpet nail. Works fine now.

Posted on Dec 28, 2009

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1 Answer

I want to hook two speakers on each terminal (L/R).


The correct way would be to hook only one speaker to the powered outputs and use PRE-OUT outputs to connect separate amplifier (or active speakers).

For 2 speakers to work connected to the same powered output of receiver, their impedance would need to be high enough. Yamaha receivers officially support impedance >= 4 ohm for front speakers. If you would connect 2 different 8 ohm speakers, the combined impedance could be theoreticcaly 4 ohm, but that depends on many parameters. On low volumes it should work, but could overload the receiver if used for louder volumes.

Also note that the impedance is a function of frequency (specific to every speaker), so for different frequencies the power from receiver would be devided differently between the speakers and the sound would not be good.

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check ur speaker wires, try disconnect all wires from back of unit and then try to turn on unit .
if it stays on whit no wires attached than u have short connection at speaker wires .
if doesn`t come on then try to fasten screws at back of the unit ,
may sound like BS but if amp board don`t have good ground connection it can go in protection mode happened to me on RX-V592

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It indicates an output load problem, dis-connect the speaker wires from the back of receiver. Next power on and turn the volume right down, if the unit runs, check for shorts in the speaker wires and speakers. But if it still shuts down "with speakers and wires dis-connected" one or more of the audio output ic's is shorted and will need a professional to assess the item.

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Yamaha RX-V465 switches off when increasing volume beyond -21.0dB


What speakers you have connected? This receiver supports only 6 and 8 ohm speakers (not 4 ohm). Also check if the ohm settings are correctly set in Advanced Setup (in standby press on the front panel STANDBY while holding STRAIGHT button). In this menu check the setting SP IMP. (speaker impedance) if it maches your speakers (6 or 8 ohm).
Disconnect all inputs and also all speakers. With nothing connected, try to increase the volume. If it still will power off, the unit is probably faulty and should be repaired.
If it does turn off only with speakers connected, check the speaker wires and the speakers, the problem will be there.

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I recently bought a RX-V465 receiver and I need to know what type of speaker terminal jacs are present in the receiver so that I can convert my old SONY Home Theater 5.1 speakers (DAV-FX500) which have a...


1 - As you already have it, take it out of the box and look at the back. You should be able to determine the connections from there. It is also in the owners manual.

2 - The receiver only supports 6 and 8 ohm speakers. Do not use 3 ohm speakers with it.

3 - The Yamaha website has instructions on how to check the firmware version and instruction on how to upgrade the firmware.

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Yamaha receiver turns off seconds after being turned on


It sounds like the amp is going into protect mode.
Dissconnect all speakers from back of amp and then try to turn on.
If it works, you have a short on one or more of the speakers.

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2 Answers

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I would not suggest mixing. Use either 6 or 8 only but i highly suggest not mixing unless it gives the option to set a certain input for a certain Ohm. If you mix your either going to mess up a speaker or the receiver itself.

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Yamaha RX V490 Turning itself Off


The amp is in protect mode which means that the output section has a problem. With nothing connected, there are defective parts inside the unit. This type of problem is not likely to have been caused by any shipping damage. I would guess that the output transistors are shorted.

Dan

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Get another receiver! I had the same problem and had the power supply replaced $250 and after 3 months it started doing the same thing.  I just purchased a Pinoeer Elite VSX 90TXV.

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