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My yamaha RX-V493 receiver and for some reason it wont turn on.I checked the fuse its ok but but just last week the power/standby button red light would light up. So could u please help help me correct the probem?

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Sounds like the stanby transformer has gone.
This is the transformer that turns the main transformer on and powers up the unit.
Cant be certian though, could be a host of other things.

Posted on Jun 16, 2009

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Yamaha RX-V657


This will almost certainly be a problem with the power supply, a faulty part. Unless you have experience of repairs to power supplies, due to the high voltages, I suggest you take it to your local authorised Yamaha Repair Centre.

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How do I reset a yamaha rx-v493 receiver?


Disconnect any speakers from it and see if it still turns off. If it doesn't, then you have a shorted speaker or speaker wire. If it does still turn off, then it would need to go in for repairs.

Jan 09, 2013 | Yamaha RX-V493 Receiver

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Just simply, what speakers do i use with a YAMAHA RX-V 493 RECEIVER


ANY that are nominally 8-ohms and can handle around 100W RMS. No other limitations. That's why they have specs.

Jul 18, 2011 | Yamaha RX-V493 Receiver

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My Yamaha RX-V757 Receiver wont turn on at all, everthing has gone blank??? Help


There are internal fuses in this unit.
Check these fuses first.
If you find a fuse that measures open, and the glass isn't black or black/silver then simply replacing the fuse may do the trick.
Make sure you get an EXACT match for the fuses, some are slo-blow because of the power on surge it has to allow.

Feb 27, 2011 | Yamaha RX-V757 Receiver

1 Answer

I have a yamaha rx-v493 reciever and no speakers what should i get that wont blow and wont empty my wallet


Of course you know you're asking a question that could attract more opinion than useful facts.

If you watch the volume and buy efficient name-brand multichannel speakers with REAL bass-handling capacity you'll probably love the sound without endangering your speakers or your ears.

As it is distortion more than raw power that kills speakers you need to keep away from pushing the amps beyond their RATED power (roughly 70 wpc into 8-ohms, @1khz, <.04%THD. I'm a little concerned that the spec in the manual qualifies it as only 1khz instead of the ore honest and meaningful 20-20000 hz it states for the RX-V393.

An under-powered amp will kill speakers faster than an over-poweredf one as it will enter its high distortion region much sooner.

Play-it-by-ear is good advice. If the amps sound strained, back off the volume.

Your room size will play a huge part in the perceived loudness while your household's aesthetic sensibilites will limit the size and visibility of the speakers. Compromise between form and function is almost guaranteed.

Being a long-time audio enthisiast/collector, set in my ways and unwilling to bow to appearance at the cost of the sound, I use full-size (70's and 80's era) Bose speakers (901's and 301's) throughout the room and augment them with a couple of huge subs and large Kenwood 777 center speakers. It ain't cheap or pretty but it rocks movies and music.

I would recommend you do some research into "home theater speaker recommendations" and read some user comments for the various offerings out there. You'll be in a relationship with your A/V system for a long time. Take the time to get it right.

Jan 17, 2011 | Yamaha RX-V493 Receiver

1 Answer

I was playing my Yamaha RX-V995 last night and it got really hot and subsequently shut off. Now, when I press the Power/Standby button, it turns on for a second. And then turns off again. Is this an easy...


Well - you may have. BUT try this. Turn the volume all the way down, disconnect the speakers, and power it up. If it comes up OK, you've got a fried speaker (or bad wiring). If not - yep, you fried it.

Oct 23, 2010 | Yamaha RX-V995 Receiver

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Yamaha rx-v650 wont come out of standby, fuses ok switchmode ok no display at all fault pointing towards microprocessor problem.


There is a common psu problem occurring on a few Yamaha models from ~4 yrs ago. Any Yamaha dealer should know what it needs. probably the mod component in the stby supply.

Doubt it would be a micro fault.

Oct 28, 2009 | Yamaha RX-V650 Receiver

2 Answers

Yamaha RX-V750 wont power up


Check the fuse. You might have had a power surge which blew a fuse. If not, check the fuse for the socket. Reset the fuses for that socket. If it still doesn't work, it sounds like the internal boards got fried, or the power supply got fried. The power supply is replaceable, but we don't know if it is the power supply. To check, connect a voltage meter to the power supply.

Something like this happened to me. I found a new kenwood stereo next to the dumpsters, stickers and all still on it, plugged it in, it worked, shut it off to plug in a speaker, didn't turn back on, months later after leaving it plugged in, turned on, I used it, then shut it off for the night, in the morning the standby light was still on, tried turning it on, but it wouldn't for some reason, unplugged it, then the light wouldn't come on, it was once again sitting on a shelf as a paperweight, one day it randomly came on again, and now it 100% works, and I use it as an amp for my RE audio subwoofer, and its worked great since! The reason this kinda applies to you is because its kinda simmilar what happened to you. Just leave it plugged in, and maybe sometime you will walk by it noticing it works.

Oct 10, 2009 | Yamaha RX-V750 Receiver

1 Answer

The unit does not work


check the standby power supply first and then the main power supply.also check the output transistors and fuses your problem is in one of those points, normally the standby transformer goes bad, it is the small one right next to the big one.
good luck

May 21, 2009 | Yamaha RX-V463 Receiver

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Yamaha RX V2400 keeps shutting off


When it shuts off, does it display anything on the front like "ck speakers" you could have a shorted wire or bad speaker. Sounds more likely than a bad receiver. Yamaha is pretty bulletproof in "self preservation" circuitry! about the only thing that takes them out is lightning and major power surges. I have been selling and installing Yamaha receivers since 1995 and have only ever seen one with a problem that was unrelated to power. and I've done hundreds. If your not using HDMI, and the Video portion of the receiver, I would definately keep the unit $ 1500.00 is no cheap receiver. Try disconnecting the speakers, then turn on the unit with a source connected like cable/sat/fios on then crank the vol and let it set, if it cuts out, yes you've got a problem internally, however, I would stronly suggest metering all of the speakers and wires for shorts. There is an internal fuse as well right near the power cord, you have to pop the top to get to it, If you have a multimeter check the fuse with resistance tone. If you get tone, you have a good fuse if not If you need to replace it. They can be found at Radio Shack etc. If the fuse is OK, chances are you've got bad transistor(s) and needs to go to service. Repair should be under 200, well worth it. If you have further questions, post a comment and I will get back to you ASAP. Hope this helps

Apr 21, 2009 | Yamaha RX-V2600 Receiver

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