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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Thu May 09, 2013 2:16 am Post subject: Video Calibration Problems - Brightness adjustments |
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The Gear:
Electrohome 8500 Ultra
TVone CSC-1600HD (which Athanasios keeps hounding me to get a Lumagen instead
Hello, just bought two calibration DVDs - Avia and Video Essentials - for way more than I should have but learning quite a bit so guess its worth it.
Anywayze, I am having some problems with the brightness settings. I cannot see the two gray bars needed to properly adjust the brightness on either test disc. No matter how high or low the settings, nothing pops up. Not sure what is going on here. Fiddled around with the brightness settings on both the projector and scaler menus to no avail. I took care of the grayscale adjustment on the projector itself as far as the G2 menu detailed here:
http://etechvideo.com/techtip1.htm
Any ideas on what this could be? A power supply issue? Something that needs adjusting on one of the boards? Faulty capacitors? Is this a contrast interference problem?
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Thu May 09, 2013 2:18 am Post subject: |
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Oh yeah, and the set was warmed up but it is staying on even longer in the background now just in case I missed something...
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CIR Engineering
Joined: 25 Aug 2008 Posts: 4264 Location: Chicago USA & Berlin Germany
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Link Posted: Thu May 09, 2013 2:39 am Post subject: |
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What is your video chain?
Is you DVD/BD player set to output RGB at 16-235 or 0-255? If you have it set to 0-255 this isPC luma levels and there will be no blacker than black or black bars because 0 is black.
craigr
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Thu May 09, 2013 3:08 am Post subject: |
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Not sure the DVD player has those specific settings. Is that something standard on most? It is a pretty regular consumer grade player save for the multiregion capability: Philips DVP-3960
Chain is as follows:
Philips DVD Player ---via component-----> TVone Scaler -----via 5BNC RGBHV----> Electrohome
Oh yeah, tried the settings over the composite input just in case but no dice.
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Thu May 09, 2013 3:24 am Post subject: |
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And the DVD player is running raw to scaler at 480i
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CIR Engineering
Joined: 25 Aug 2008 Posts: 4264 Location: Chicago USA & Berlin Germany
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Link Posted: Thu May 09, 2013 1:34 pm Post subject: |
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Since you are running all analog, you won't have the settings I noted above.
Instead, you should have settings for "lighter" / "darker" or 0 / 7.5 IRE. You want to set these all to the darker settings. They could also be called video / setup, or other odd denotions.
craigr
_________________ *NEW JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
X-Rite i1Pro2 Spectroradiometer & Spyder Colorimeters *For JVC auto-calibration when Klein & Jeti are not applicable
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion ColourSpace XPT Version β Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
*NEW OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
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Phone: 865-405-6892
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Thu May 09, 2013 1:58 pm Post subject: |
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Aha! I remember taking care of these adjustments on my older DVD player. Nice to be on familiar territory now. I have already found the original manual for the current player, but there is nothing that indicates a "lighter/darker" setting. The video setup menu allows changing things like brightness, contrast, etc. A full setup list is detailed in the manual on pages 39-41:
http://download.p4c.philips.com/files/d/dvp3960_37/dvp3960_37_dfu_aen.pdf
Thanks for much for everything so far! If it does not work out, I'll probably just switch back to the older player and try it all again.
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Fri May 10, 2013 4:02 am Post subject: |
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Any thoughts on the Philips manual or what to adjust on the current DVD player?
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AVphile
Joined: 02 Dec 2008 Posts: 331 Location: Ottawa, Ontario
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Link Posted: Mon Jul 22, 2013 7:33 pm Post subject: |
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The player may not be capable of outputting blacker-than-black. Try a different player or different test pattern that doesn't rely on BTB stripes to set black level.
_________________ AVStefan
HDFury3 -> BG-808s -> HD-145
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Mon Oct 14, 2013 1:21 am Post subject: |
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Found the older player and tried to use the test patterns again on both lighter and darker black level settings. Proved to be a no go again. Any other ideas? Where could I find these other test styled patterns by the way? Also, does having a P43 phosphor based Electrohome have any play in the situation here?
Last edited by UncleWill on Mon Oct 14, 2013 1:27 am; edited 1 time in total
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Mon Oct 14, 2013 1:29 am Post subject: |
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Nash! Has been a while man! I have it set on darker right now (is that 7.5?) As far as the RGB settings, you need to walk me through here. My expertise in calibration is dainty.
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UncleWill
Joined: 11 Dec 2012 Posts: 413 Location: WashDC area, ViennaVA
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Link Posted: Mon Oct 14, 2013 1:33 am Post subject: |
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Oh yes, as far as the scaler is concerned, settings are fairly plain. Brightness, contrast, saturation, sharpness, etc. I do not recall an RGB color based setting in the menu. You are right though - at this point the scaler is the likely problem. Urgh, gotta make that upgrade.
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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Link Posted: Mon Oct 14, 2013 2:08 am Post subject: |
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Just looked at both manuals. The it might be as others suggested your DVD player. or it might be the setting in your tv one.
I assume you have the out from the DVD as YUV( YcbCr) Component and the TV-One converts it to RGBHV out at 1080i?
If so have you tried to use the Tv-Ones brightness control? If that does not alllow BTB then it must be the players.
What is the older player you used?
Athanasios
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AVphile
Joined: 02 Dec 2008 Posts: 331 Location: Ottawa, Ontario
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Link Posted: Mon Oct 14, 2013 3:00 pm Post subject: |
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UncleWill wrote: | Where could I find these other test styled patterns by the way? |
AVIA DVD, Spears & Munsil Blu-ray and maybe some of the Disney titles.
_________________ AVStefan
HDFury3 -> BG-808s -> HD-145
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