Question about Denon AVR-2807 Receiver

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I think my amp is broken

I have a denon surround 8 channel amp, i think its the one listed. The model number has 2800 in it. Anyway, the 4 main channels make any speaker attached to it sound completely blown, and it's not the speakers. The centre and rear speaker channels still play fine. Apart from it sounding blown, there is barely any sound.

Any ideas

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Finals/outputs are toast. Get it serviced to get back to sweet music...accordianman

Posted on Mar 09, 2008

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If the front display does not light up at all when the press the power button, it is usually either the main power fuse or the power transformer. If the fuse is blowing, that usually means a short in the amp section.

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Usually it is bad power supply problem or bad channel problem. Look for any burned parts, it helps you locate the problem. Burnt resistors in one channel- you need to replace output transistors (better to replace all transistors in that channel) and bunch other surrounding parts. If you do not see any burned parts, check all voltages coming from power supply +15 -15 +5 etc then check dc at every channel output (not at speaker terminals but at control pins on the amp/main pcb), should be +-10mV

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Ohhhhhh, so it has NEVER worked for YOU and it needed fixing when you got it. That changes everything. And you don't have the manual??

You can find the manual on Retrevo.com. Just register and download it. You're going to need it to make use of this unit anyway.
Make sure everything is connected correctly.

Look it over and play around with it. Speaker setup needs to be done before anything else. Did you get the microphone that comes with it? If not, go to page 23 and start there.



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I just received a Denon AVR-4308ci receiver. I have two passive subs in my system. The receiver only has one powered output. Since I am not using the surround back speaker outputs can I use these for the...


Sure, if you want to hear Surround Back program material coming from the subs without midrange or tweeters. (Sarcastic) Of course, the LFE program material will still be going into a black hole somewhere.

Run the subs in series with each other -
Sub Amp negative to 1st speaker negative;
1st speaker positive to 2nd speaker negative;
2nd speaker positive to amp positive.

Run the speaker level adjustments routine and enjoy.

Just for giggles, try what you were thinking about. You won't hear much from the sub(s) unless you programmed the Surround Back channel as full-range and then have something like the Apollo 13 launch for program material. Normal audio won't send much low-frequency material to those channels. The optimal place for subs is on the LFE or sub channel.

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I think your receiver has cracked main (amplifier) board close to surround back channel terminals. Need to take apart the receiver remove the board, inspect it and resolder cracked traces. Unfortunately it is not so easy to remove that board and probably you need to bring it to a repair shop.

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well as long as all signals are routed through the Denon your on the right track, now what else you have to do is connect all devices to the reciever do not loop one device through another. Also you have to try the different surround fields to hear the one you like the best for music I use 5Ch stereo for movies the surround field varies based on the type of movie

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Back speakers with av denon 1908


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The speakers are 4 ohm speakers, a guy on another chat site sent me a link to the impedance curves http://www.audioholics.com/reviews/s...t-v2-fs/page-4

He agreed to that there was a mismatch as the unit has plenty of fresh air around it, plus all the speaker cables have been tested and installed correctly.

So, off to the store where I got it from tomorrow.


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the problem you have seems to be on programing the master effects to get to it go to main menu and see the distribution and effects you want to hear on you home theather.remember that home surround needs some decoders to send the sound where the images come and its right built in....

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I need to set up 4 pair of speakers, two zones. all ceiling mounted.


Okay! all ceiling mounted speakers. I don't know about 4 pair of speakers.Here is the load down:
First pair of ceiling speakers would be left and right front from speaker A or Main output behind your receiver.
Second ONE,but a pair would be connect to the center channel output as your center speaker.
Another pair would be connect to the surround sound left and right(NOT surround BACK left/right.)
Now,you have 5 channel setup at this point,you still need to purchase a power subwoofer to the SUB PRE-OUTPUT behind your Denon receiver.

For Zone two,you would need to connect your other pair of speakers to surround BACK left and right output.
Go to your Denon MENU button,depending on which model you have,some of them will have an on-screen display feature(you would need to have a composite video cable connect from the video output behind your receiver to the TV video input in order to use the on screen menu.)If not,you would have to it view on the front panel of the A/V receiver.
You need to read the detail on how to setup the video and audio as well as distance and DB for the receiver through the menu button.
I will be frank with you,if you are an amateur,Denon is NOT easy to be setup on the first time.
solutiondoct

Nov 06, 2008 | Denon Audio & Video Receivers

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