Question about Yamaha HTR-5790 Receiver
My yamaha amp has been stored for a year wen i use to use it I had a dvd player over top the vents and the amp shut down one day, I have now purchased high perfomance polkk audio speakers and would like to use my amp. I pulled it out last nite, it turned on and off fine, now this morning I plug it in and it turned on then i turned it off, now trying to turn it back on, only the fan starts up I get no other indication of power. I know I am using a a different powercord could this be the problem?
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Posted on Jan 02, 2017
Asouth, I'm curious if you have solved the problem with your receivers? It sounds like the same problem that I am having with my RX-V1500. I would appreciate any response that you would have to this inquiry.
Posted on Jun 06, 2007
Make sure you have set blu ray player out put to bitstream,if you have set to pcm for hd master audio and dolby true you need to have a amp to decode this and hook up with a hdmi cable.If your amp has hdmi in and out but no high def audio you may still get multi channel audio.
Hope this helps.
Posted on Jun 29, 2008
THE SPEAKER WIRES ARE REVERSED.... On the receiver the red side is always positive and black is always negative.
change + to - or
change - to + on one or more speakers.
positive side--------------------negative side
red --------------------------------black wire
gold wirew/silver--------------silver wirew/gold
white lined----------------------non-white lined
Posted on Oct 30, 2008
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
Posted on Jun 06, 2009
chances are youve got a short at the rear of the receiver. look for frayed speaker wires touching the chassis of the stereo. use a flashlight. it only takes one tiny hair of a wire to short it out
Posted on Nov 03, 2009
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Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Eure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
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