The "Official" Denon DVD-2910 Owners Thread - Page 92

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Hi,

This is for the experts.

My TV set model (new Samsung Full HD) has an issue with gamma tracking. I got this information from a UK reviewer. He came up with a chart where gamma is flat on 2.2 from 30IRE to 60 IRE. In the lower level it goes up to 2.35 on 20IRE and to 2.4 on 10IRE. In the other end, it goes to 2.15 on 70IRE; 2.1 on 80IRE, and a bit under 2 on 90IRE. The thing with this is that it can cause black crush on darker scenes (dark parts are darker than it should be).

The 2910 has a gamma correction feature, where one can adjust the level for each IRE to fix any non-linearities. My problem is that I don't have any tools like colorimeters, etc to set these adjustments more "scientifically".

In the gamma correction feature one can find G0-G9 in the X axis (meaning the IRE levels probably, 0IRE to 90IRE?), and values in the range 0-255 in the Y axis.

The default values for G0, G1 and G2 are 36, 42 and 52, respectively. I've changed that to 24,32 and 48 (by guess), in order to "fix" the issue with the TV, i.e., bring this levels to gamma 2.2. What values should I use in order to achieve linearity according to the values mentioned above? Is there any mathematical formula?

Thanks .

Is anyone using their 2910 with a Sony KDS-R50XBR1 (SXRD)? The PQ that I'm seeing is terrible using both HDMI and component, progressive or interlaced, when routed through my Anthem D2 processor or direct to the TV. The dark scenes are especially bad as they look "blocky/splotchy"...am I seeing the "macro-blocking that I've been reading so much about? I've even swapped out cables for both connections.

Thanks,
Tony

My Denon 2910 suddenly went on the fritz and the dialog on DVDs sounds drowned out by the incidental music. Has this happened to anyone else, and would a reupdate of firmware help? Thanks.

Try getting an Avia disc and maximizing your TVs settings first. I know that helped with mine but some dark scenes have noise in them. I don't think this is macroblocking though.

Well, I'm using my 2910 on my Sony KDS-R60XBR2, and it looks fine. Video path is component from the DVD player to the back of the TV. Video was calibrated using the DVD Essentials disc. Looks great, scaling is wonderful, no blotchiness, no black level issues of any kind. It's a different TV, of course, but I wouldn't expect your DVD player to perform any less well on yours.

Thanks for the help...I've calibrated the picture several times, and experimented up and down and all around, using Digital Video Essentials and the THX test patterns on select movies (which I actualy prefer because they have a useful contrast test pattern)...hmmmm. OK, I just wanted to check on whether the TV/player compatibility was an issue...the user manual even specifically warns against certain TVs displaying "artifacts".

Looking on the support site, I was surprised to find that no firmware updates were available...

If you're just setting this up, check the black level control and make dure it's not set to enhanced. Also, you want 7.5IRE level as opposed to 0IRE. If either of those are off, set them correctly and then re0do the calibration DVD.

The 7.5 and 0 IRE levels are only supposed to apply to analog video outs. They should have no effect on digital video out, ie HDMI outputs, but they do have an effect with HDMI out on my 2910. The recommendation I came across on a thread elsewhere here was that if the IRE setting made a difference for digital video out, set it to the setting which does not cause clipping. For some reason the default setting for the 2910 is 0 IRE, not the technically correct 7.5 IRE, and that's the setting that gives me the best results with HDMI. Although there shouldn't be, I find there is a slight difference between 0 and 7.5 with HDMI and I think the default setting of 0, technically wrong though it may be, produces a better quality picture in my system.

The IRE setting also affects the picture throught HDMI on my 3930.

I too prefer the picture with the setting at 7.5. Better blacks, looks washed out in comparison at 0.
Not sure what is supposed to be "right".
Once I get my TV fixed (new light engine this week) I'll play around withe the DVE disc again.

I agree. I'm using the HDMI output on my 2910 and the "0 IRE" setting results in a much "deeper black" picture. I'm also set to normal, not enhanced.

DVD's actually look just as good as my HighDefinition cable picture and that's on a 96" screen.

Tme_2_Ride

In North America, 7.5 IRE is "right" because the rest of the chain is (supposed to be) calibrated to 7.5 IRE.

You're correct, but IRE refers to an analog signal voltage. IRE settings should have no effect in the digital domain, you should see no difference regardless of what the setting is. With the 2910 I see a difference and 0 IRE, which the manual says is the default setting (the manual does not mention analog or digital signals in its section on the IRE setting) gives me better results with a HDMI signal than the 7.5 IRE setting.

See the guide for source settings for a discussion of IRE and why it should not make a difference for HDMI connections. The link is:

http://www.avsforum.com/avs-vb/showt...89#post4969789

need some help please...
I use this player for both DVD SACD and DVD-A.
A few weeks ago I was playing a SACD and turned off the pure audio direct. [supposed to give better SQ]
Then I shutdown my system after a few listens of music, but then when I went back a few days after to play the DVD.
nothing would show up on the screen... sound would come out but no picture.
I checked that i turned the pure direct off and all that good stuff, connected through HDMI so I had the cable checked out with the one on my PS3 cable works fine, the imput on the tv works fine.. If I connect via componet it works for picture. but i don't want to use component.
Does anyone here have any suggestions before I bring it in to DENON to check?

I bought my 2910 in July 2005. Over the last few years I have compiled loads of live music concerts mostly downloaded from the internet, and using Verbatim and Phillips recordable DVD+R disks. All of these disks play perfectly well; however, some concerts that I have recently burned are not playing properly.

I recently downloaded the Genesis show in Dusseldorf in June (unfortunately the torrent has now been removed !!) and it plays perfectly on my PC but not on the Denon. The audio is not synchronised with the picture, and there are regular split second pauses in the sound. The frustrating thing is that it plays perfectly on my fathers £39.99 Phillips DVD player !

The same thing has happened with a few other disks that I have made recently - on one of these the picture completely froze but again, plays OK on my PC and my fathers DVD player. I bought some new Verbatim disks today , believing them to be compatible with most players, and the Genesis gig still plays with the same problems.

I bought a new Vista PC three months ago and use Nero to burn the disks - interestingly, this problem has only occurred with disks burned on my present PC (all disks burned on my old PC play fine). However, having contacted Nero and emailed the log file of one of the disks created on my present PC, they couldn't find anything wrong.

Can anyone suggest why a £500 DVD player has problems playing a disk which is OK on a £40 player ? Is it to do with the firmware and if I upgrade it, will this fix the problem ? (my current firmware is ESS 6720 - A)

One other thing. I downloaded the zip file for the latest firmware upgrade but this is a "cfw" file (actually called d21zsavd.cfw) and my Nero program does not recognise it as a file that it can buen. How do I turn this file into something that can be burned onto a disk that I can then use to upgrade the firmware ?


Any help would be appreciated !!

Thanks

I just bought (used) a 2910 solely for SACD & DVD-A playback. I read the reviews and liked the 80hz crossover. I have Panny for DVD video playback.

My problem is that the player will not recognize multi-channel SACD or DVD-A discs, no matter how I set up the player, and I've tried everything I can think of.

All I get in the players display is the letters "CD" (far left side of display), and just 2-channel output. None of the lights for R, L, SR, SL, SW (LFE) ever light up. Video plays fine. Could I have a dirty lens? The player came from a smokers house and really stunk for a while. What is the best way to clean a dirty lens?

Any & all ideas appreciated...............

Hi Fastexas,

Make sure in the Digital interface menu that you have it set to "2 channel" (not multichannel). That seems to be the main culprit to what you describe. I also assume that you have the 6 cables connected for High Rez audio--If you do and set the configurations in the Multichannel section of the Audio menu, you should be good to go. I hope this works...Good Luck.

I assume you mean the HDMI output......yes, I do have it in 2ch., per posts in this forum. The 5.1 cables are in proper place, of course. I do appreciate the advice, though.

Have you ever seen a situation where a laser lens could be dirty enough to cause
a reading problem? My next step would be to take the cover off & see if I could clean the lens

Given that it reads DVDs Ok, I wouldn't think that would be the cause, but that is beyond my knowledge level of the machine. My last/only other thoughts are have you cycled through the SACD options on the remote (i.e., multi, stereo, CD)? Also make sure you have it set up as an "audio" player in the etc.menu.

Good Luck.

In SETUP, do you have "Audio" selected and not "Video?"

I seriously doubt that a dirty lens would make SACDs play in 2 channel instead of multi channel.

I had some success last night. I've had all the settings correct as per the above responses all along, and I got "Toto IV' SACD to play in 5.1 right off the bat. Then I tried 2 other discs, and once again, no SACD or DVD-A 5.1 output!
This thing plays DVD's just great; I'm at a loss.

Would anyone like to buy this from me for $225 (includes shipping)? Makes a top-notch video player, and it's in excellent condition.

FYI, some - quite a few actually - SACDs have ONLY 2-channel and NO 5.1.

SACD can be multi-channel but it seems to be rare. There have been some 3 channel SACD releases, remasters of Mercury recordings from the 50'ss and 60's which were actually recorded in 3 channel and mixed to 2 channel stereo for release at the time. There may be some 5.1 channel SACDs around but I don't know of any.

Click here and gain enlightenment!

I'm enlightened.

I hear Denon is having a press gathering Tuesday. I've heard rumors about a 1940, any info on 2940?

Most all of my SACD's (15) are of the 5.1 variety

I would not buy any that were not 5.1. Just doesn't make any sense (to me).

Hi to all you 2910 users.

I have a problem that I hope one of you may be able to sort for me.
I have connected my 2910 (Firmware 6720-8) via HDMI link into my new Denon AVR-2307 Receiver and thence connected to Sony KDL40W2000U. All HDMI settings for 2910and 2307 have been set as per the user manual.
After switching 2910 power on, it suddenly locks up completely and I have no control via handset remote or via front panel of 2910. The only way I can get control back is by unplugging the HDMI connector and re-powering up the 2910.
The 2910 works fine when connected dirct to TV via HDMI, and the 2307 works fine with other HDMI source connected.
Any suggestions would be most welcome!