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Help green tupe setup NEC

2189 Views 30 Replies 6 Participants Last post by dropzone7, Feb 13, 2009

Klaus

Discussion Starter · Jan 3, 2009

I dont understand my problem with the green ref. tube. I have a NEC XG135proj. feeded with 1920x1080p through Moome HDMI inut board. I centered the image on the raster but the top of the test image is still curved?? The buttom line is straigt?? All lines are straight exept the top lines? I dont want to use point convergense because i dont think this is the way to go here. Anybody have an idea of want could be wrong? The NEC setup does not allow top and buttom ajustments seperate on the green, only on the red and blue tube. I had to mount the projector a bit out of level "the wrong way" because of the ceiling hight and screen location in the cinema( i had a barco before, the Nec need to hang 5-10 cm higher) Could this be a problem? I use 16:9 screen so I could level the projector and move the image on the raster?? Would this be better???

1 - 20 of 31 Posts

MikeEby

· #2 · Jan 3, 2009

Klaus,

Are you using a scaler? Most people that feed a Moome card 1080p directly with a Blu-ray player have a foldover problem. The only way to cure this problem is to use a scaler with custom scan timings or an HTPC with Powerstrip.

Mike

Klaus

Discussion Starter · #3 · Jan 3, 2009

I am not using a scaler, I am a big fan of HTPC (with upcomming BR drive..;-) Gfx card is ATI HD3850 and I dont use powerstrip (yet!) Do you have some recommended settings somewhere??

MikeEby

· #4 · Jan 3, 2009

Most people with HTPC's and XG's use [email protected] refresh.

These are the settings most people use. No motion judder like 1080p60Hz.

"C:\\Program Files\\PowerStrip\\pstrip.exe" /t:1920,40,96,240,1080,54,14,97,137079,542

Mike

Klaus

Discussion Starter · #5 · Jan 3, 2009

The diff. between 1080i and 1080p one a crt projector are so small that you cant see it, right?? even though it is on a 105" screen, why is that?Just shorty if you got the time? Thx

Klaus

Discussion Starter · #6 · Jan 3, 2009

I now tried going interlaced but then my FullHD analouge LCD monitor goes black in clone mode and this screen is placed in tech room behind cinema, i might do a conversion with a fullHD s-video to vga converter(using tv out, will I be able to see anything on s-video in fullHD i wonder??). I figurer something out. I need this exstra monitor in techroom for control and ref images/ netradio player and more....i will try powerstrip now and see whats happend...

Mark_A_W

· #7 · Jan 4, 2009

Use a CRT monitor for the cloned screen - I do.

100% analogue all the way baby.

Mark_A_W

· #8 · Jan 4, 2009

Use a CRT monitor for the cloned screen - I do.

100% analogue all the way baby.

Klaus

Discussion Starter · #9 · Jan 4, 2009

I was to fast, the LCD is working fine with mikeEby settings. But the green testscreen is still curved in the top and straight in the buttom? Are there any diff. between "picture size" and "amplityde" same thing happend when change these settings...

Mark_A_W

· #10 · Jan 4, 2009

Have you set Phase correctly?

But it sounds like you need to change the video timing and add more porch pixels to the top and bottom. You do this in the source.

Post a picture please.

And no, Size and Amplitude are the same thing (amplitude requires the service password and has more range).

Klaus

Discussion Starter · #11 · Jan 4, 2009

I will paste a pic....

Klaus

Discussion Starter · #12 · Jan 4, 2009

Quote:
Originally Posted by MikeEby /forum/post/15447213

Most people with HTPC's and XG's use [email protected] refresh.

These are the settings most people use. No motion judder like 1080p60Hz.

"C:\\Program Files\\PowerStrip\\pstrip.exe" /t:1920,40,96,240,1080,54,14,97,137079,542

Mike

ok, news, these powerstrips setting combined with phase ajustment seems to solve the problem. I dont like the idea of going interlaced but when i go progessive the raster usages is bad (smaller). I need to pull the proj. back 10 inches. I read somewhere on acdnow forum that you have some recom. settings for 1080p (228 MHz pixelclock)??I tried these settings but then the raser usage goes bad again.... I would like a progressive picture with raster usage like the interlaced here?? Is that possible?? And do you have some setting that you know works?? Am I crasy because i just cant live with the idear of 1080i and need to go 1080p, just because the proj. and moome HDMI card can???

MikeEby

· #13 · Jan 5, 2009

Quote:
Originally Posted by Klaus /forum/post/15456222

ok, news, these powerstrips setting combined with phase ajustment seems to solve the problem. I dont like the idea of going interlaced but when i go progessive the raster usages is bad (smaller). I need to pull the proj. back 10 inches. I read somewhere on acdnow forum that you have some recom. settings for 1080p (228 MHz pixelclock)??I tried these settings but then the raser usage goes bad again.... I would like a progressive picture with raster usage like the interlaced here?? Is that possible?? And do you have some setting that you know works?? Am I crasy because i just cant live with the idear of 1080i and need to go 1080p, just because the proj. and moome HDMI card can???

Yes, [email protected] is somewhat difficult to get a good geometry, it also takes a lots of time setting the magnetic focus to get a sharp image. What I had to do to was input the signal then adjust the reference raster centering to center the raster on the tube, do NOT let the raster extend beyond the edge of the tube, it could damage the tube. You must use the 3151 pass code to access these settings, also I am NOT using a Moome card, I am connecting directly to the RGBHV analog connection with an HTPC Blu-ray’s work fine without the Moome card.

I use a GammaX for gamma boost connected to the VGA output on the Video card. I would first see if you can live with [email protected], will be much easier to setup and perhaps somewhat sharper, probably easier on the projector too.

Mike

Mark_A_W

· #14 · Jan 5, 2009

Seriously, try 1080i 96hz before you dismiss all interlaced resolutions.

Klaus

Discussion Starter · #15 · Jan 5, 2009

Quote:
Originally Posted by Mark_A_W /forum/post/15460098

Seriously, try 1080i 96hz before you dismiss all interlaced resolutions.

Thx both of you, The pic is perfectly centered on the raster in both ways (1080P and 1080I) I will go for the 1080I setting for a start. Any of you having an idea of what can cause the smaller pic. in progressive compared to interlaced with the same resolution??

Regards Klaus

Mark_A_W

· #16 · Jan 5, 2009

Klaus...are you running 1080i 96hz and 1080p 96hz?? (Double the scanrate.)

Or 1080i 96hz/1080p 48hz? (Same scanrate.)

Or 1080i 60hz/1080p 60hz? (Double the scanrate.)

If you are comparing signals with double the scanrate then the answer is there is a finite retrace time. The higher the scanrate the narrower the image. All CRTs do this.

Klaus

Discussion Starter · #17 · Jan 5, 2009

2

the 3 complete settings i found here and the standard 1080P settings by ATI, then i tried the 1080P settings i found on the other forum. All progressive signals gave a smaller image on the raster. And you guys here recommend a interlaced signal with very high scanrate over a progressive with low scanrate.

I have not been working on the set today, i am looking forward to get going with the 1080i powerstrip settings and see how the final picture turns out. You can see my cinema on [URL='http://www.cinema13.dk/Bio.htm']www.cinema13.dk/Bio.htm if you want to? Old burned barco is sold and replaced with the NEC. I am very happy with the NEC for now but if I cant get a 1080P signal perfect I will have the best argument for future barco 909/ Marq 9500 replacement...

I did a fast convergence setup last week with the standart ATI 1080P setting and the colours and picture was so much better than the barco, so I cant wait to see it with perfect settings and BD.

See less See more

Mark_A_W

· #18 · Jan 5, 2009

Klaus, you misunderstand the difference between REFRESH RATE and SCANRATE.

Got to go to work now - try Google.

Klaus

Discussion Starter · #19 · Jan 5, 2009

I now i mix them up sometimes, but i was only refering to the standart ATI settings 1920x1080P60Hz (refresh rate) the rest is scanrate as you wrote...right..I will try to keep it in scanrates settings from now on. The refresh rate has notning to do with it..correct?

YONEXSP

· #20 · Jan 6, 2009

Quote:
Originally Posted by Klaus /forum/post/15466602

I now i mix them up sometimes, but i was only refering to the standart ATI settings 1920x1080P60Hz (refresh rate) the rest is scanrate as you wrote...right..I will try to keep it in scanrates settings from now on. The refresh rate has notning to do with it..correct?

Klaus try [email protected] as Mark et al suggest. You won't regert it. It is to my eyes as good as [email protected], and even better as there is no Judder

Try it, you won't regret it, I promise you

1 - 20 of 31 Posts

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