Fried HDMI on Denon 4806?

[davelee98]

My Denon 4806 is on the fritz. HDMI video and audio is "dropping out" resulting in the picture on the tv flashing between "snow" and a noisy red-image. It will flicker back and forth about once a second. Occasionally, the picture will lock back in.

To figure out if it's the receiver, my tv, my source, or a cable problem, i did the following:

1) Connected component cables throughout -- everything worked fine
2) Connected my Oppo DVD directly to the TV using the Impact Acoustics SHR 9' HDMI cable that was formerly between the Denon and the TV. Picture is fine
3) Reconnected the Denon and the TV using the same HDMI cable, used input #2 on the TV. Flashing red screen
4) Moved the HDMI cable to input #1 on the TV. Flashing red screen.

At this point I'm pretty sure that the HDMI repeater on the Denon is fried, but just wanted to check with y'all. What do you think?

On another note, has anyone here ever sent something in to Denon service? What was your experience?

 

[mtrycrafts]

My Denon 4806 is on the fritz. HDMI video and audio is "dropping out" resulting in the picture on the tv flashing between "snow" and a noisy red-image. It will flicker back and forth about once a second. Occasionally, the picture will lock back in.

To figure out if it's the receiver, my tv, my source, or a cable problem, i did the following:

1) Connected component cables throughout -- everything worked fine
2) Connected my Oppo DVD directly to the TV using the Impact Acoustics SHR 9' HDMI cable that was formerly between the Denon and the TV. Picture is fine
3) Reconnected the Denon and the TV using the same HDMI cable, used input #2 on the TV. Flashing red screen
4) Moved the HDMI cable to input #1 on the TV. Flashing red screen.

At this point I'm pretty sure that the HDMI repeater on the Denon is fried, but just wanted to check with y'all. What do you think?

On another note, has anyone here ever sent something in to Denon service? What was your experience?

Is this a new problem or this is your initial setup with the HDMI?

I think you need an HDMI from the DVD player to Denon. Is that cable good? How did you check this out? Use both HDMI cable direct to TV and see if you have good video or not.
9 ft is not a long cable although some TVs just don't like even that length.
There could be a cold solder joint somewhere too.

 

[jcPanny]

HDMI issues

Check both HDMI cables individually to verify they work before routing HDMI through the Denon. You also might try different HDMI inputs on the Denon and see if you can get the Denon OSD to work over HDMI.

 

[davelee98]

OSD check

So I tried using the OSD from the Denon to the TV using the known good HDMI cable. BTW this setup has been working fine for about 1.5 years before I started getting intermittent failures (audio and/or video dropouts.) So when I try to display the OSD over HDMI I get the same alternating pattern of gray snow and a static-y pink picture. I'm starting to think that there's a loose connector or something inside the Denon.

 

[agarwalro]

I remember having a similar issue with my Samsung DVD player. I ended up changing the DVD player.

 

[davelee98]

I remember having a similar issue with my Samsung DVD player. I ended up changing the DVD player.

So I called Denon tech support and they said that the flashing pink business sounds like an HDMI sync problem and suggested turning on the components in the opposite order. That seems to have improved things a bit. However, I still get audio dropouts when using HDMI inputs. Everything is rock solid, however, if I go to all analog. HDMI just seems like a really rotten idea...

 

[mtrycrafts]

HDMI just seems like a really rotten idea...

Yes, there has been a good number of postings on this and papers by the admin folks which should be at their home pages under tech papers.

Can you do HDMI direct to the TV and do digital audio separate? Or, the DVD decode and use the multi channel analog in?

 

[rendimage]

I have the same thing happing on my 4806. I now use an optical line for my audio and the hdmi for video straight from my DVD player. The screen one day just started flashing from static snow to picture. I've reset the denon and reset the PS3, and also swapped on HDMI cables - but to no avail.

I've also taken all inputs out and the OSD does the same thing. Thinking about the CI upgrade or just taking it to a denon repair shop. Hope that this will fix it. Also considering just getting a newer receiver -but I don't really want to.

Anyone had any more luck?