Question about Audio & Video Receivers
If this is in a boat, I would check the amp unit for moisture damage, as a marine items is a specially built units that fends off water as well as moisture damage exposture. it does not mater if the amp is enclosed inside the hual or cabinet. The problem you are encountering is most likely because of a bad main amp unit, as if you disconnect the speakers and turn uo the unit, and it still goes into protection or shutdown mode, something is wrong with the amp. Like I said before, the fault is most likely due to water damage or moisture damage to the main printed circuit board. Good Luck.
Posted on Mar 24, 2007
SOURCE: Right side speakers don't work
if you are using RCAs as inputs to your amp.Swap the R to L @ RCAs to see if its comming in okay from radio.If both RCAs have audio then amp is bad ,If amp has any type of switches , move swithces to see if it comes back .Also if both RCAs inputs have audio .Move the RCAs when connected on amp to see if amp has bad connection in board to RCA jacks..If audio comes back on bad side when jack is moves .Then you have bad solder joints on board..If not then you must have bad outputs on amp..
Posted on Dec 24, 2007
Apparently it won't let me log in. Anyhow... I'm pushing voltage. The light is flashing, not flickering. How can I replace the transistors?
Posted on May 15, 2008
I work at an authorized Denon service center and have repaired lots of Denon receivers including this model. So bare with me, and trust that I really do know what I am talking about.
The first thing you need to do is find out if those two speakers may be at fault. You can do it very easy by disconnecting them and connect two of the known good speakers into the channels that the bad sound is coming from and then connect the suspected bad speakers in where those good speakers were connected to.
If the same speakers still sound bad, you know that you have a couple of bad speakers. I think that it is likely that the speakers are OK, but it is a good idea to make sure.
If the sound from the suspected bad channels is now still bad with the two good speakers, you have an internal amplifier problem or you have a problem on the digital board.
For your sake, I hope it is the amplifier that is giving you this problem, if it is, that can be fixed by a good audio technician.
If the problem is the digital board, you may be in for some real headaches. Not that many audio techs are very good at troubleshooting a digital board, its not their fault, it is just a very difficult job.
In either case, it will need to be looked at by a qualified technician.
I hesitate to tell you this, but the problem sounds like a digital board problem. In some rare cases, a technician with excellent soldering skills can reflow a couple if the memory IC's on the digital board and restore proper operation. If the technician is top notch and isolates the problem to a specific IC on the digital board, they can replace that IC and you are good to go.
But in most cases, the technician will not even bother trying to troubleshoot the digital board because it can take hours of troubleshooting, and just order the board if it is available. Most of them are available from Denon, but they are very expensive. Normally the part alone is $200 to $300 and I have seen many times where it takes months to get it.
You can also send it directly to Denon's factory service center and that will get your unit back much quicker. They have direct access to the boards, where-as the authorized service center must order it thru one of the Denon parts distributors and they do not always have them in stock. so you end up waiting for a long time.
If you need to send it to the Denon factory service, let me know and I will email you a return authorization form, this must be faxed or emialed to Denon with the proper information and then they will fax or email it back to you with the RA number which must be written on the outside of the box before shipping it to them.
I hope that this information wasn't to overwhelming, but if you found it helpful a good rating would really be appreciated. It helps to keep the experts on FixYa motivated and willing to answer the questions people have even it the answer is not very good news.
I received an "inappropriate" rating from somebody who just wasn't happy with the truth, and most people never even bother to rate our answers. But that's another whole subject.
let me know if you need more help.
Posted on Jun 22, 2008
only using one of the channels for audio and having the rest of the amp wired up as normal should work fine. for example just use the right channel and leave the left unwired.
Posted on Dec 28, 2008
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