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Discussion Starter · #1 ·
My projector just hit 1000 hours and some colors appear overpowering. Is the "Avia Guide to Home Theater" a reasonable DIY affordable color set guide for Sharp 9000U?
 

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A must hv tool for anyone with a decent TV. You got a Z9000. If not just for peace of mind and knowing all your parameters are at the exact spot they should be.


Guy will like this part. Avia is the best low priced tool, don't try to save a couple of bucks with DVE or S&V. :)
 

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I concur. Anyone with an HT should have a setup disc of somesort. Now depending on what you mean by "overpowering" it may require some calibration beyond what the disc alone can do, but it is a good start.
 

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That's right, having Avia is a good start for the basic calibrations. You also need the other test patterns for Grayscales. You can fine tune your Z9000 with the service menu's RGB-contrast RGB-brightness adjustments.


Here's a quote from the H30 tread to get you started.


"Some tuning tips for all displays that have advance RGB-adjustments for grayscale.


After making changes take a look at the Avia Needle Pulse pattern to see that there's no color tints in the Gray to White steps in the upper part of the pattern. The Pluge pattern also in Avia called Black Bars+ Log Steps. It's found under Video Test Patterns/Gray Scale & Levels/Black & White levels -


If it's not dead on grays to white make final changes with the user advanced adjustments.


Example - you see red/pink tint in the light gray/white.

R-contrast -2

G-contrast +2

B-contrast +2


If you see green in the dark grays/black

R-brightness +2

G-brightness -2

B-brightness +2


You see how it works, color in the light grays you use the RGB-contrasts


Color in the dark grays you use the RGB-brightness to fix.

enjoy"


Here's a couple of grayscale patterns -
http://www.cigarbest.com/sales/h77gray1.jpg
http://www.cigarbest.com/sales/h77gray2.jpg
http://www.cigarbest.com/sales/h77gray3.jpg


Make the shades of gray look gray with no color tints.



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Actually guitarman you missed Guy's post last month that the AVIA patterns are mastered with a slight color tinge. Nothing that someone without a vector scope would notice. I think he recommended using the S&V window patterns to be on the safe side - or of course the AVIA PRO (just got it myself - it was well worth the $$$)


But you can hire an ISF tech for that kind of money!


AVIA PRO has better near/above/below white/black patterns - so rather than using the +/- technique - you can use the color filters to find the max RGB settings before clipping and work your way inward.


BTW your whites look a bit magenta to me!
 

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CarDawg,


I suspect you just need a basic calibration - send away for the free THX blue glasses to use with the THX Optimode (Finding Nemo , StarWars) and it cost you nil. Then you can see if you enjoy the tweaking and want the more advanced patterns.


Overpowering colors sounds like your color saturation is too high - would you describe them as cartoony?
 

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Discussion Starter · #7 ·
Thanks Guys!

Cartoony would be a good way to describe playback of some material, not all DVD's are bad.

I notice that web sites offering AVIA are full screen only and produced in 1999. Any newer versions available as well as wide screen or does it matter?
 

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Kras, interesting about the tinge in Avia patterns. You can see a hint of pink in some of my gray pattern shots. I'll check out S&V also.


Check out this one, a user said his colors weren't right on a mits I think.
http://www.cigarbest.com/sales/grayscaleh77.jpg


He's got the blues. :)


CarDawg, as the brightness is lower the color saturation increases, could be a simple brightness adjustment with THX. Avia is full screen but I was able to trick it wide by putting the Bravo in 4.3 letterbox aspect. Tuning a widescreen projector.
 

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Yuck - crushed blacks/whites and blue whites. How can anyone watch such an image (besides marketers that like the numbers)


Guy never really said how much the tinge was in CIE units so that a calibrator could compensate. It was enough for me to jump to AVIA PRO anyways.
 

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Discussion Starter · #10 ·
Is the 1999 AVIA version the latest release???
 

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Thats users grayscale is so hosed it's not a joke. If those patterns don't look at least a little like gray you're in trouble, time to fix it. :)


I saw the Pro version down at Optoma. They give Wing all the goodies as part of his job. Colorfacts/Avia Pro for free. :)


Pro looked interesting, like a briefcase of stuff, many discs to fool with.
 

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Discussion Starter · #13 ·
Thanks for all your suggestions and recommendations! Avia it is!
 
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