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Recently when selecting the DVD mode on my Denon AVR-2803 the audio was gone when starting to play a...
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Problem for Denon AVR-2803 7.1 Channels Receiver
Receiver shut down only when using phono preamp
I recently added a Music Hall mmf-5 turntable to my system with a Dynavector MC cartridge DV-10X5. I also added a Antique Sound Lab Phono LUX DT phono stage. I am connecting it to a Denon 2803 AVR using the VCR2 input. After playing the phono at high volume for a relative brief period of time(4-5 songs), the "protection circuit" trips and the unit shuts down. The unit is hot at the time it shuts down, but does not shut down with any other inputs(ie CD, DVD, DVD audio and SACD) at even higher volumes.
I have tried the TV input on the receiver, changed out the RCA connections and tried another Phono LUX DT phono stage. All with the same result; the unit shuts down. I had the phono stage bench tested and installed in another system with no problems detected. I added a second ground from the phono stage directly to the ground on the turntable with no success. I put a large floor standing fan to move the air around the unit and it did not help. The Denon receiver is in a cabinet with 5 1/2" clearance on top and 3" on each side.
I do not believe I have a problem with the receiver, because it works with all of the other inputs at high volumn. If anyone has any suggestions I would be most grateful.
I have tried the TV input on the receiver, changed out the RCA connections and tried another Phono LUX DT phono stage. All with the same result; the unit shuts down. I had the phono stage bench tested and installed in another system with no problems detected. I added a second ground from the phono stage directly to the ground on the turntable with no success. I put a large floor standing fan to move the air around the unit and it did not help. The Denon receiver is in a cabinet with 5 1/2" clearance on top and 3" on each side.
I do not believe I have a problem with the receiver, because it works with all of the other inputs at high volumn. If anyone has any suggestions I would be most grateful.
Comments:
Sep 10, 2006
- Marv thanks for the suggestion. I was wondeing if the gain is a problem shouldn't the volume be louder than other input sources, such as CD, DBS, and DVD, which it is not? I appreciate your input.Zin Man
Same Problem
Feb 23, 2008
- I am having the same problem. When using the phono input, if you go above a certain volume level, it completely shuts down. This is EXTREMELY frustrating. I've only owned this DRA-397 for 24 hours and I'm already exasperated with it. I am not going to be happy if the solution to this problem is to buy more equipment. I would rather buy a new receiver that works as advertised.- GuestBest Solution
posted on Nov 07, 2006
Since the protection circuit trips after 4-5 songs at high volume from LPs, it may be that the infra-sonic rumble common to phonographic recordings is driving your amp stages much harder than it sounds like they are driving. You can check this with watt meters for your speaker outputs, or by filtering such extremely low frequencies on the input. If you have an equalizer--especially an old one--it may have an infrasonic filter, or just cut the very lowest frequency available on the equalizer after running your phono pre-amp into the EQ and the EQ into your VCR2 input. This setup will verify if your problem is the infrasonic rumble, but I wouldn't use it as the solution. There are very quiet infrasonic filters available that would work better for the long term. And if you just cut the lowest EQ frequency out, you'll miss some good bass.
Yes
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Solution #2
posted on Jan 22, 2008
I believe you have no fault, all manufacturers employ a number of "anti-condensation" techniques (to stop moisture buildup around the door seals, some use a thermal wire (just like what's in an electric blanket, others and more exotic use hot return gas from the compressor through pipes around the door / s these get really hot but it's a really effective way to keep moisture away. Hope this helps you and others
Graeme
Graeme
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