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stridsvognen
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| Posted: Thu Oct 17, 2013 10:18 am Post subject: |
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sory to say, but im 99,9% sure you have some scaling somewhere you dont know off, i can not reproduce your pattern, but i can make funny lines and colors like yours when putting the output resolution a bit off.
So if you know your output is 1080x1920, i bet its some sort of overscan on the input signal.
Is it possible for you to plug a blu ray player direct, and make a 1080P 60 hz on the screen.
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tschaeikaei
Joined: 08 Apr 2013
Posts: 490
Location: Germany/Saarland
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| Posted: Thu Oct 17, 2013 12:19 pm Post subject: |
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Sorry I do not have an BluRay Player. But I'm checking again if it's a scan issue.
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Marquee 9500U edgeblend P43 | NEC 9PG
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napos
Joined: 21 Oct 2006
Posts: 164
Location: Athens, Greece
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| Posted: Thu Oct 17, 2013 1:04 pm Post subject: |
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| tschaeikaei wrote: | Yeah the retrace and some strange powerstrip behavior.
Fixed it, works. Thanks 
Next question: I got some strange behavior of the blue tube, not sure how to call it.
Settings are:
Drive /G2
R: 12/71
G:90/63
B: 65/68
Brightness 60, Contrast 66.
It's only the blue tube. on the red, it never appears, on the green only if Contrast is set over 85 (sure for testing only).
The blue gets much sharper if I lower contrast under 50. But... That's not a setting where you can watch film with.
My (actively used) screen is 2,5x 1,4m (100x55"). That's not too much for an 8500 AC, is it?
Is this a leaking capacitor (as it always is ) or am I overdriving my projector?
Second one: Can't get the 1on 1off to work. Horizontal seems quiet nice, but vertical lines are horrible, meaning there are none.
Apart from that, astig (mechanically and electronically) is done, zone focus is done... I'm not the god of tweaking, but apart from this testfile, the aharpness really seems ok.
Best regards, Julian
    
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Have you defocused the blue tube electronically?
If you do it will increase the light output and it will help the gamma of the blue channel.
Set optimal mechanical focus on Blue and defocus electronically by about 10 units.
Try starting with the settings Tim Martin recommends as a starting point for 6500K white balance:
Red 35 Drive
Green 90 Drive
Blue 50 Drive
Start with a G2 setting of 60 and adjust using the internal step pattern until you can barely see the difference between the 2 darkest bars. If you raise G2 more you will raise your absolute black level. Use a contrast and brightness setting of 50 during this process. After you set the G2 adjust he Drive settings for the Red and Blue tube until white is as neutral as possible. Green Should be OK around 90.
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Marquee 9500LC Ultra with MP mods, Moome HDMI 1.3 card, Lumagen Radiance XS, Oppo 83 BluRay, Toshiba XE-1 HD-DVD, HTPC with Media Player Classic.
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tschaeikaei
Joined: 08 Apr 2013
Posts: 490
Location: Germany/Saarland
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| Posted: Thu Oct 17, 2013 2:14 pm Post subject: |
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Sorry, I know how to adjust G2. And I dont want to defocus the blue tube, it's defocussed enough.
My problem is not adjusting grayscale, but this blue comming out of where it should be. See pic 2.
Maybe it's better visible here. I don't know how to call it, but this blue smearing on the right side of the vertical lines.
It's not a convergence problem, if someone might answer that!
Best regards, Julian
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Thu Oct 17, 2013 2:33 pm Post subject: |
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Hello
Smearing could be the neckboard; try swapping blue with green
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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napos
Joined: 21 Oct 2006
Posts: 164
Location: Athens, Greece
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| Posted: Thu Oct 17, 2013 6:34 pm Post subject: |
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| tschaeikaei wrote: | Sorry, I know how to adjust G2. And I dont want to defocus the blue tube, it's defocussed enough.
My problem is not adjusting grayscale, but this blue comming out of where it should be. See pic 2.
Maybe it's better visible here. I don't know how to call it, but this blue smearing on the right side of the vertical lines.
It's not a convergence problem, if someone might answer that!
Best regards, Julian
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Julian,
The reason I mentioned the grayscale process is because a Blue drive setting of 68 is too high. Try setting Blue drive between 40 and 50 and redo your mechanical focus on Blue to the best of your ability. To help you out because blue focus is hard on the eyes, blue is focused when it appears to be at its lowest brightness. You will see that as you are adjusting the focus up and down. Try this so that we can eliminate it, before you start looking into defective boards.
Have you changed the electronic focus setting for blue at all?
Let me know if this helps,
Nicholas.
_________________
Marquee 9500LC Ultra with MP mods, Moome HDMI 1.3 card, Lumagen Radiance XS, Oppo 83 BluRay, Toshiba XE-1 HD-DVD, HTPC with Media Player Classic.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Thu Oct 17, 2013 9:02 pm Post subject: |
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| napos wrote: | | tschaeikaei wrote: | Sorry, I know how to adjust G2. And I dont want to defocus the blue tube, it's defocussed enough.
My problem is not adjusting grayscale, but this blue comming out of where it should be. See pic 2.
Maybe it's better visible here. I don't know how to call it, but this blue smearing on the right side of the vertical lines.
It's not a convergence problem, if someone might answer that!
Best regards, Julian
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Julian,
The reason I mentioned the grayscale process is because a Blue drive setting of 68 is too high. Try setting Blue drive between 40 and 50 and redo your mechanical focus on Blue to the best of your ability. To help you out because blue focus is hard on the eyes, blue is focused when it appears to be at its lowest brightness. You will see that as you are adjusting the focus up and down. Try this so that we can eliminate it, before you start looking into defective boards.
Have you changed the electronic focus setting for blue at all?
Let me know if this helps,
Nicholas. |
Here is a site with a lot of info for the marquee chassis and clones
www.etechvideo.com including grayscale setup
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crt king of black
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Thu Oct 17, 2013 11:35 pm Post subject: |
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I agree with what everyone has said so far,my first bet is on bad stig adjustment, second would be streaking on blue neck-card although green would streak before Blue on a high hour machine.
Green Drive is normally between 40 and 50, never 85 .
Pull up the dot pattern, press Color ,then 3 (blue only). Choose PIC/4 focus and ramp it down to zero. Turn contrast up to 80 and you should see a halo around a dot.
Now grab the little flare knob at the back of the tube and while either spinning it around the tube or twirling it between your fingers, center the dot in the Halo.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Sun Oct 20, 2013 4:06 am Post subject: |
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| draganm wrote: | I agree with what everyone has said so far,my first bet is on bad stig adjustment, second would be streaking on blue neck-card although green would streak before Blue on a high hour machine.
Green Drive is normally between 40 and 50, never 85 .
Pull up the dot pattern, press Color ,then 3 (blue only). Choose PIC/4 focus and ramp it down to zero. Turn contrast up to 80 and you should see a halo around a dot.
Now grab the little flare knob at the back of the tube and while either spinning it around the tube or twirling it between your fingers, center the dot in the Halo. |
mine isn't in that area on the green drive
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crt king of black
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tschaeikaei
Joined: 08 Apr 2013
Posts: 490
Location: Germany/Saarland
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| Posted: Mon Oct 21, 2013 10:45 am Post subject: |
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Hey guys, sorry that I didn't answer those days, was busy...
I read in some forum, the standard drive settings for new tubes are R35, G90, B50.
And that you should set these, adjust G2 and then drive.
The green does not change much at all if you adjust drive, so I left it where it was.
I don't know why, but something in my projector has changed.
When I last made the grayscale setup, the blue was way too bright, really.
Before, it was good and gray with blue drive of 80.
I did it the way napos (and others) wrote:
| Quote: | Try starting with the settings Tim Martin recommends as a starting point for 6500K white balance:
Red 35 Drive
Green 90 Drive
Blue 50 Drive
Start with a G2 setting of 60 and adjust using the internal step pattern until you can barely see the difference between the 2 darkest bars. If you raise G2 more you will raise your absolute black level. Use a contrast and brightness setting of 50 during this process. After you set the G2 adjust he Drive settings for the Red and Blue tube until white is as neutral as possible. Green Should be OK around 90. |
My current drive settings are:
R12 G90 B45
I still wonder about that low red setting, but the projector looks good so far.
Maybe I have bad eyes. And no meter...
RGB zone brightness is adjusted too, but again without a meter.
I looks not bad, but I know it could be better.
Wishing to get a meter soon. It would probably not be possible to adjust two projectors without it,
remember I'm planning a 3D stack.
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Marquee 9500U edgeblend P43 | NEC 9PG
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Oct 21, 2013 11:41 am Post subject: |
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you really can not trust you eyes for a correct white balance we tend to gravitate towards a too blue image. both my marquees have red drive about 30ish and blue drive about 12ish.
But for now watch what you think is correct and then when you get it done using a calibration program and
a meter you'll go WOW I was way off!!! 
Athanasios
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Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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tschaeikaei
Joined: 08 Apr 2013
Posts: 490
Location: Germany/Saarland
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| Posted: Mon Oct 21, 2013 5:06 pm Post subject: |
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So, Athanasios, what are the whole settings? green drive and the G2s?
I dont think that my projector would work good with your sttings, cause you have 145s color corrected
and I have HD8, but maybe it's worth trying.
That would be the point: red and green are corrected, blue is not. Therefore you have lower blue and higher red
(green is even set high, I think).
But it would be interesting anyway.
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stridsvognen
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| Posted: Mon Oct 21, 2013 5:35 pm Post subject: |
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Its imposible to use G2 and Drive settings from someone else, there is 1000 ways of setting this up.. and tube condition and vim edition in play. how much gamma boost you have or not on your signal.
I think the factory 6500K setting and contrast around 60-70, brightness 50 is a good start point.
Use the internal step pattern to set black/ G2 level, just look into the lense and see when the 2nd black step starts to elevate, find a angle where you dont see the high level area, and blind yourself.
After that you can put a source test pattern, with a 2-3% IRE black, and boost source gamma untill the pattern is just visible, and dont light up the surrounding area.
After that you need a probe to balance the gray scale, and find the right gamma level, or have good eyes that knows what gray and different gamma looks like.
Remember that focus, both magnetic and optical is a big part of how the different colors behave.
Last edited by stridsvognen on Mon Oct 21, 2013 5:40 pm; edited 1 time in total
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Oct 21, 2013 5:37 pm Post subject: |
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Each set is different, but from experience I noticed blu drive even when I had Hd 8's was never over 40.
I have 9500LC's now( converted) but one red G2 is 55 the other is 65, each tube is different and you rarely get the same emissions.
If i had the luxury of matching tubes I'd be in heaven!!!
Also remember that red and blue drive will alter the lower end if adjusted too high.When using a probe I will some times have the 30 IRE field up and not use blue or red G2 but its Drive instead for slight adjustments. It is a back and forth process. But to do it correctly a measurement instrument is definitely needed.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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stridsvognen
Guest
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| Posted: Mon Oct 21, 2013 6:01 pm Post subject: |
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My Drive is
Blue 12 and Green 90 Red 26
G2
Blue 67 Green 63 Red 52
Red SUB brite 45
Blue SUB brite 10
Contrast 88
Brightness 50
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Oct 21, 2013 6:22 pm Post subject: |
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Hello
Maybe set sub-brites to 50 and try again?
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tschaeikaei
Joined: 08 Apr 2013
Posts: 490
Location: Germany/Saarland
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| Posted: Mon Oct 21, 2013 6:30 pm Post subject: |
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Where can I find sub-brite?
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stridsvognen
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| Posted: Mon Oct 21, 2013 8:20 pm Post subject: |
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| Nashou66 wrote: | | What software version do you have Kurt. Scott told me Sub Bright does nothing till v8 I think, it does nothing on my 2004 Ultras |
Its a firmware 5.0, i actualt prefer the 4.2.
There is some anoying bugs in 5.0, and G2 is not stored with each preset.
So adjusting 6500K you just have Gain and red/ blue sub brite.
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