AVS Forum banner
Status
Not open for further replies.
1 - 20 of 1906 Posts

·
Registered
Joined
·
484 Posts
Discussion Starter · #1 ·
Now that the LC-45GX6U is delivering we need to take the pressure off of Mike's popular thread that has become unfortunately tangential for the owners to dicusss tweaking issues and any problems that arise...... such as Phoenix's dead pixel.


It seems as though, at this point, about 5 people on the forum: Mike, Jason, Phoenix, sorry and sawyer, have taken delivery of the glorious Sharp 1080p 45" LCD, which although about 3 months late, appears to be well worth the wait.


Significant highlights of the 300+ posts about the LC-45GX6U so far:


1) AVC box will not accept 1920 x 1080p.


DVI-I input into the panel WILL accept up to 1920 x 1080p at 60 hz. (59.9 Hz, actually, according to Jason)


2) Maximum PC resoultion into the AVC box is 1280 x 1024.


3) Gefen remote controlled DVI switcher will pass through 1920 x 1080 at 60 hz resolution from your PC with no overscan and allows its second DVI input to be used by the AVC box for all other inputs.....including the HDMI.


4) Scaler is located in the AVC box, but the DVDO iScan works 'very well' with the monitor between the AVC box and DVI input on the panel. It was reccomended to wait until January '05 to purchase the new iScan which will have a HDMI input.


5) The jury is still out as to whether the Sony STR-DA9000ES , which is a relatively high end 7.1 receiver with DVI switching (2 inputs 1 output), will pass though 1920 x 1080p at 60 hz without clipping the signal, and do as good of a job as the Gefen mentioned above (which is 1/10 the price).


6) The jury is still out whether the LC-45GD4U will accept native 1920 x 1080p at 60hz, because its scaling and interconnects are internal.


7) BUY ONLY FROM A SHARP AUTHORIZED DEALER ! Check www.sharpusa.com for a list to make sure you did and have warranty coverage.


8) Windows High Definition Video , acording to Phoenix, looks fantastic in 1080p...but there has been a surround sound issue with the Microsoft format being "WMA Pro", which differs from Dolby and will be matrixed in by S/PDIF standard receivers....according to amirm with microsoft.


He mentions that a 'new Pioneer Receiver' is needed to properly decode the WMA Pro format of wmv audio.


9) PQ has been, for the most part, 'as good as' or 'better' than the expectations of early adopters (whose VISA bill right NOW is ugly)


10) Rogo has decided that the new SHARP flat panel LCD's outperform Plasmas. :D




I plan to hook up the High Def Tivo by HDMI later this week and will report on the findings.


Good luck Chavel and Jeremy on your arrival this week. I hope you plan to have a cigar.


Sawyer
 

·
Registered
Joined
·
613 Posts
So........anyone else done a bad pixel hunt yet? I hadn't noticed any, but the other day I got a little more serious about looking. I found one bad pixel about an inch below the top center of my screen. The pixels on a 1920x1080 screen are pretty small, and true to Mike53's explanation, the bad pixel appears to be stuck "off", instead of "on", so it doesn't "glare".


This had gotten mentioned in the other thread, but it scrolled back pretty quick, and this thread seems like a good idea (and the appropriate place to bring it up).


Phoenix
 

·
Registered
Joined
·
186 Posts
Quote:
Originally posted by PhoenixScreen
So........anyone else done a bad pixel hunt yet? I hadn't noticed any, but the other day I got a little more serious about looking. I found one bad pixel about an inch below the top center of my screen. The pixels on a 1920x1080 screen are pretty small, and true to Mike53's explanation, the bad pixel appears to be stuck "off", instead of "on", so it doesn't "glare".

Phoenix
I read this and wanted to reply in the other thread. I would imagine stuck off to be much better than stuck on. At what viewing distance would you say it takes until you notice the stuck off pixel?


I plan on using DisplayMate among other things to test and calibrate my panel when it arrives. I will be sure to look for pixel defects.
 

·
Registered
Joined
·
269 Posts
my guess is watching a football game at 10 feet you would never notice. But, using as a computer monitor at 20", it might be distracting.


How is it phoenix?


sawyer: nice try sneaking #10 in!
 

·
Registered
Joined
·
39 Posts
What are the owner's subjective feelings about the scaler? How well does the AVC handle SD D* content, 720p (HBO HD, etc.) and 1080i (CBS, etc.) signals? From a HDMI/DVI DVD player? At what resolution?


Does anyone here know if the set does reverse 3:2 pulldown from 1080i to 1080p? (I guess this would have to happen inside the set, since the AVC outputs 1080i). What about from 480i to 720p?


One could also take these questions to mean: What scaling happens in the set, and what are its capabilites & quality, and what scaling happens in the AVC, and what are its capabilites & quality.


Steve
 

·
Registered
Joined
·
80 Posts
My TV arrives tomorrow. Any advice on what I should do initially to test for dead pixels? Should I do this while the delivery people are here? Although I am not sure if they would take the TV back for having bad pixels...
 

·
Registered
Joined
·
765 Posts
My TV arrives tomorrow. Any advice on what I should do initially to test for dead pixels? Should I do this while the delivery people are here? Although I am not sure if they would take the TV back for having bad pixels...

__________________________________________________________


Ditto for me too. Mine also Arrives tomorrow. There is supposed to be a big storm tonight which could set a record for October here in the SF Bay area. Watch the power be out when it arrives.
 

·
Registered
Joined
·
272 Posts
I had placed an order with Plasma Extreme but discovered today that, contrary to the announcement on their web site (now removed), they have no stock. I cancelled with PE, made the call to Jason at OneCall this afternoon and will be a member of the LC-45GX6U club by Friday. My thanks to the pre-delivery enthusiasts and to those whose units have already arrived for the great information you have posted. I anticipate really enjoying this display.


Lincoln
 

·
Registered
Joined
·
613 Posts
LaserEdge and Jeremys,


I never noticed the stuck "off" pixel until I searched for it, so it isn't exactly noticeable. Now that I know it's there, I can spot it from 4-5 feet away, but any further and I'd say you can't even detect it.


Of course, Mike53, you can bring a new panel by my house if you need to replace it with a "perfect one" :D .


Phoenix
 

·
Registered
Joined
·
35 Posts
All,


My LC-45GX6U seems to have problems correctly synchronizing its HDMI input upon power up, when connected to my HD TiVo (HR10-250). Most of the time when I power up, the screen has a washed out purple cast to it. It looks EXACTLY like the Menu/HDMI Setup/Signal Type has been set to "RGB" by mistake (the signal type coming from the HR10-250 is YCbCr=4:4:4). Even if you force the Signal Type to "YCbCr=4:4:4" instead of "Auto", it still looks as if "RGB" has been selected. If you do *any* of the following things after power up, the LC-45GX6U screen synchronizes up, and looks great:

* Make any change to the HDMI Setup Signal Type, then set it to either "Auto" or "YCbCr=4:4:4"

* Make any change to the HDMI Setup Color Matrix setting

* Make any change to the HDMI Setup Dynamic Range setting

* Do anything at the HD TiVo box that forces the LC-45GX6U to resync, such as change output from 1080i to 720p, and then back to 1080i, or even change from "Panel" to "Full" mode (which briefly shuts off video output).


This is really wierd! It's as if some firmware bug in the LC-45GX6U causes it to always synch/switch its HDMI input upon power up in "RGB" mode for "Signal Type" and then stay that way until the HDMI input parameters are altered using the remote, or until the source interrupts/changes its HDMI output to it to cause the LC-45GX6U HDMI input to resynch.


I guess I could have my programmable remote do some funky macro gyrations to cause a resync, but yechh!!!


Any ideas?

Chuck
 

·
Banned
Joined
·
18,829 Posts
What a great summary sawyer. If everyone did such a great job reducing long threads, we would all get educated much faster :).


BTW, rogo is no the only one thinking about LCDs. You guys are starting to convince me too but I need to see the darn thing in person first.


Amir
 

·
Registered
Joined
·
484 Posts
Discussion Starter · #12 ·
That sounds a bit like the conversation on the other thread about a week ago about 'power cycling'....I had the same problem with my Toshiba LCoS between the DVI DVD player and selecting an input on the LCoS on screen menu.


In that case, I had to have the power on the DVI DVD already ON before the LCoS would sync up....or 'lock onto the signal' if you will.


Try turning on the Tivo first with the Sharp OFF and waiting about 30 seconds, then turn the Sharp on......it should sync.


Someone mentioned in another thread that there have been alot of strange problems with HDMI both on the HR10-250 and monitors. I'll find out with mine in a couple of days, if the same problems exists.
 

·
Registered
Joined
·
484 Posts
Discussion Starter · #13 ·
Thanks Amir.


I've learned more from this forum than I have from all the local salesmen and Audio Video 'specialists' combined.


Plus I got to hang out with Gary Merson and David Bott in Vegas last year......and act like I knew what I was talking about.
 

·
Registered
Joined
·
35 Posts
Hi Sawyer,


Actually, this problem happens with the output of the HD TiVo left on continuously too.


I'd be really interested to hear if yours does the same thing as mine. If it does, I think you're going to be equally as motivated to find a fix. My wife is not very impressed that such a high-end system needs to be poked and prodded in order to get it to work right, nearly every time you turn it on.


Chuck
 

·
Registered
Joined
·
269 Posts
Owners:


What were your settings after calibration? I have been meaning to ask for a few days. I know sorry calibrated.


DVE or AVIA?

inputs: DVI, HDMI, Component?


thanks in advance,

Jeremy
 

·
Registered
Joined
·
32,172 Posts
10 is a myth. Urban legend.


7 is important.


The rest are all kind of niche-y bits of info to me. But that's just me.
 

·
Registered
Joined
·
407 Posts
Can someone provide a more direct link to a Sharp USA web page to check if retailers are authorized distributors ? I looked around that site and found nothing (but that's just me).
 

·
Registered
Joined
·
272 Posts
On the subject of authorized Sharp dealers, when I placed my initial order for the LC-45GX6U with Plasma Extreme (AKA Adaptive Technologies), I asked for verification that they were in fact an authorized Sharp dealer. They faxed me a letter from Sharp that states (exerpting here) that Adaptive is: "...listed as an authorized dealer/reseller for Sharp brand Professional Large-Format LCD monitors..."


In the end I did not place the order with Adaptive because they did not have the unit in stock, although they stated they they expecteed to have some in 1-2 weeks. fwiw


Lincoln
 

·
Registered
Joined
·
765 Posts
While waiting fopr the 45 to arrive I've learned a couple of things about my ATI 8500 DV AIW card that's in my HTPC. It's got to go. It is not compatible with the GEFEN switch and I don't like the fact that it will not drive my Dell 2001 20 inch FP at 1920X1080P 60Hz like the FX 5200 NVIDIA card in my desktop does. The 5200 works fine with the GEFEN 4X1 switch. I guess I won't be doing the experiments with the ATI card such as testing the component video out at 1080i. Sorry about that but the Holy Grail of Display Nirvana is 1:1 pixel mapping over DVI. Now if I can just excise the 8500 and get a clean install of the new Chaintech 5200 card without reinstalling windows I'll be happy. BTW since the Chaintech card has vga out I plan to hook it up to input 5 using the dvi:vga converter cable that they talk about in the manual. The cable should be here is a day or so. Wish me luck again and thanks to Sawyer for starting this thread.
 
1 - 20 of 1906 Posts
Status
Not open for further replies.
Top