It has taken several days, but I've finally read all 1700 posts on this forum. I've learned that since I live in Dayton, OH, I should hire Chad B to calibrate the TV (and probably my receiver too) since he is so close.
But before I do that
I need to solve a serious problem I have with this TV and is the reason I read this forum. I though it would be rude to post a problem without reading all the posts to see if my problem has already been addressed. But, I couldn't find any helpful information.
Setup:
I have an Ivy-bridge HTPC running Windows 7 connected via HDMI to my Denon AVR-3310CI and the Denon connected via HDMI to the LC-80LE844U. All my testing is done using various Blu-ray movies.
Problem:
I have a serious lip sync issue. The video delays the audio, but it's not consistent. At times it's nearly in sync, then a few minutes later, it's grown to well over 1/2 second, then it gets better, then worse again. It oscillates like that, but take several minutes for a full "cycle". So, setting the audio delay in the Denon isn't helpful. Also, the max delay in the Denon is 200ms, which isn't enough at its worst.
- I tried all the HDMI ports on the TV with no improvement.
- I turned off all video processing on the TV with no help.
- I called Sharp, and they said it was a receiver problem. They didn't seem very knowledgeable.
- I tried all variations of the video options in the Denon, including turning off all video processing in the Denon. I even called Denon, which resulted in me trying some combinations of settings I already tried. They basically told me to give up and run the PC directly to the TV, use optical from the TV to the receiver, and learn to live without HD audio.
- I thought the PC might be causing the problem. So, I borrowed a SONY BDP-S590 Blu-ray player, and installed it in-place of the HTPC. The problem remains.
- I plugged the HTPC directly into the TV, and used the optical output to the receiver. Perfect sync
- I plugged the SONY directly into the TV, and used the optical output to the receiver. Perfect sync.
- At this point, it looked like a Denon problem, so I plugged the output of the Denon into a HDMI computer monitor. Perfect sync.
Notes:
- The Denon supports HDMI 1.3a only.
- All my HDMI cables are high-speed 1.4a cables, and I tried other cables with no change.
- This problem didn't exist on my old TV (it had component inputs only though)
- Since I'm using a PC, I can very easily test the video delay. Open Notepad and start typing. On a normal PC, when you press a key, the letter appears instantly on the screen, In my setup there is a clear delay before the letter appears.
- I thought that the TV might just be delaying the audio to match the video. But my Notepad test above didn't show a delay in steps 6 or 8 above.
- Setting the TV to game mode helps a lot. It seems to remove the oscillation effect and reduces the delay to an amount the Denon can handle. But the game mode looks awful, and I can adjust it enough to look good.
- Except for post 1567, no one has reported similar problems.
Options:
- I'm considering borrowing a moderm HDMI 1.4 receiver to see that helps. Maybe I need to replace the Denon? If so, any suggestions?
- Maybe my TV has a problem?
- Any help would be appreciated!
Overall I am very pleased with PQ since changing from D* to Comcast. Color is much more accurate. There are a couple channels which I have found to be pretty bad on all providers, USA to name one. Very soft and very warm.
