Congrats cp! Enjoy your new 7700!

OH NO!

I went to watch TV this morning and the hum is back. ARGH!!!!!!

Whenever I plug any cable into the Coaxial input #1 or #2 the hum appears. I tried connecting my DVD Jukebox into the Denon via the 6 channel analoge inputs and got the hum again.

I have the DVD jukebox not supplying any audio to the Denon, and the only hum I hear is a very, very low hum.

I believe on the avsforum website, I read that someone had an issue with the HDMI cable being a part of the problem,

So, after more fidgiting around, I found a combo of issues with the video out of my Sony Jukebox. It seems now it is related to the HDMI and component video out sources of my Sony DVD 400 Jukebox.

If I have the coaxial connected from the DVD jukebox to the Denon with the HDMI cable ( monoprice 35 footer at 22 awg wire) running directly to the TV I have the hum. If I disconnect the HDMI cable at the jukebox the hum goes away.

So I connected component cables from the jukebox to the Denon with the coaxial audio cable for audio and I get the hum.

Disconnect the comp video cable and keep the coxial audio cable connected and no hum.

Bottom line; if I have the video outputs connected and going to the TV or Denon, and audio outputs are going to the Denon, I get the hum.

I checked all power connections with at the monster powerbar and they are all correct, I even checked the polarity at the outlet and the outlet is correct regarding grounding.

????????????????????????????

UPDATE;

It looks like I can use the HDMI to the TV if I use an optical cable for the sound o the receiver from the Jukebox. Weird!

Every 15-20 seconds or so, a very subtle "pop" sounds from the speakers with the volume turned down low. If there is any kind of music or dialogue coming from the speakers you cannot hear it. But if the volume is turned way dow, the pops are audible.

For the last week, when I fire my system up, I have the "buzz" coming from all 5 speakers.

The buzz is mostly heard from the surrounds since they are close to the listenrs.

After about 2 minutes, the buzz gets almost twice as loud for a few seconds and then it goes away, almost completely. The buzz is then pretty much only audible if you put your ear within a foot of the speaker.

?????????????????

I think I will be calling in for advice, possibly a swap to the 7125.

Giving them a call is probably worthwhile. It may be a case of some components inside warming up, but that's just a guess - and since it's not a behavior that I recall hearing from others (or from my amps), it may be something else entirely.

I talked to Scott on Friday. We talked about what I was hearing & experiencing, and what steps I had done for troubleshooting.

I will say that while I am not pleased with the buzzing, I am very impressed with what Outlaw is doing to rectify the problem.

He is shipping out another 7700 to me for replacement. I may have fried an internal piece of circuitry while connecting & disconnecting electronics, so I will hook up everything before plugging in anything!

That is one thread that is consistent with Outlaw. The customer service is outstanding.

Best,

I still think it's worth while to check any Sat/Cable connections first and foremost. They are typically not grounded in the same place as the house power.

All one has to do is disconnect the cable from the wall to the tv. 9 times out of 10 the hum goes away immediately.

Dgilley, what did you get your hum issue ironed out? I've got one with my new 7500 and was curious if you found a fix.

Thanks.