Question about Yamaha HTR-5890 Receiver
Yamaha HTR-5890 receiver keeps shutting down.
After it shuts down it will not turn back on until power to it is disconnected for some time. It seems to be random at when it shuts down--sometimes after four hours or sometimes after just two minutes. Under troubleshooting in the manual it said to check impedance setting and that doesn't seem to be the problem. Could it be that an internal cooling fan is malfunctioning which is causing the unit to shut itself down? (The temperature of the unit does not seem to be a factor-hot or cold it doesn't matter). The problem started about a week ago, going out only once or twice a day and now is going out once or twice an hour. Has anyone had similar problems and can help me figure this out?
For the past month i have been shopping for the perfect home theater system and have narrowed it down to a bose system,a sony system and a paramax p510...i have listened to all 3 systems and have found the paramax to be the better system not a cheaper system but seem more bang for my buck at 3200$,a very powerful tube amp and downfiring sub maxes out at 2000 watts...
Posted on Nov 14, 2009
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Posted on Jan 02, 2017
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Nov 28, 2011 | Yamaha HTR-5640 Receiver
Register and download the manual for free at retrevo.com
Page 25 discusses the minimum speaker impedance setting for expected lower-than-8-ohm loads. Running A AND B may present a load that is dangerously low. BTW: 6 is not a whole lot lower than 8.
Look at your speakers' impedance specs. Running them in parallel would present a much lower load than either pair alone.
Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
You very well may have blown and amp or a speaker.
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
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