Question about Denon AVR888
Whenever i go to put the surround system on the tuner for FM radio, it cuts the power off when i turn it up, meaning the entire receiver powers down once the volume is up a decent level. anyone have an idea about why this is? the surround works on everything else just fine with ipod and the TV surround, on the tuner it works great with the 3speakers but when all 5 are on it cuts off like that
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Posted on Jan 02, 2017
SOURCE: denon avr-1700
If you have the owner manual check for reset and reset the unit. If you don?t have the manual unplug the power cable for a wile and then try again. Good Luck Toufic Malek
Posted on Sep 25, 2007
It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.
When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.
If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.
If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.
On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".
If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.
I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.
If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.
If I can be of any further help, let me know.
Posted on Jun 22, 2008
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The way you describe you problem it seems more like poor solder connections somewhere on the board. Usually these are at the voltage regulators where there can be some heat. Also, look for any connections that appear to be grasiny or have rings and resolder them too.
Alternatively, suggest that you take it to the Denon service center closest to you.
Best of Luck..
Posted on Mar 05, 2009
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