The Denon RC 1048 fell off couch and will not work now. I have replaced the batteries (to try and reset it), but the receiver seems to not "communicate" with the remote now. Any ideas?

My self have problem with Denon AVR 3808Ci Receiver, the HDMI is doesnt work anymore, and I can not find replacement parts because receivers is out of date, very shame

Entering a new remote code will automatically erase the existing code for the device it is currently operating.
The remote for Denon devices is 111.

http://www.usa.denon.com/AVR-1909-OM_E_004.pdf

Try these folks:

http://www.electronicadventure.us/Merchant2/merchant.mv?screen=prod&store_code=EA&product_code=RC-1048

Cut and paste the link

I have a remote left over from my denon ACR3200. the remote is RC-825. It is currently listed on Ebay.

Try this Link.
http://www.usa.denon.com/ProductSupportAndArchives.asp

These remotes are known to be weak, Denon is aware of the problem, here in the Netherlands they've sold out. Spare part no longer available. Try an older remote to an Denon AVR. these will work for say, 98% and are more reliable.

Drop the front panel of your receiver,there is ZONE 2 ON/OFF switch.
Good day!
solutiondoct

www.remotewarehouse.com grenteeed fit match

My suggestion would be to not ask this site for advise.
In my opinion, this is the worst site for actually addressing any problems involving any electronic device.
It is easier to just call Denon support and ask them how to fix the problem.
Your remote probably just needs to be reset, and they will tell you exactly how to do it.
Better still you'll actually be able to talk to a live person that is familiar with your product.
These guys that run this website are really only interested in the fact that you might click on an advertisement, that's why there is so many of them on the page.
I have never once received any advise from this site that has actually been correct.
These guys have actually made the problem worse.
I had to reset my entire Toshiba remote because of the advise I received from this site.
That meant pressing and holding each individual button on the remote for 2 secs each just to get it back to the original problem.
Never ask the so called experts on this site anything because they are self proclaimed experts and are probably not familiar with your device even though they claim to be.
This website should be shut down for misrepresentation.
It only pops up first on search engines because they pay to have it be that way.
If you absolutely cannot find the information your looking for and calling the service and support center for your device doesn't work, I suggest just returning the product to where you bought it or buying a new one before trying any advice on this website.