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Murillo
Joined: 30 Dec 2007
Posts: 113
Location: Sweden
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| Posted: Mon Feb 13, 2017 8:20 pm Post subject: Reference for G2 adjustement? |
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Hello
Does anybody have a suggestion what to use as a reference for comparing the tubes when setting G2?
Best regards.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Feb 13, 2017 9:53 pm Post subject: |
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It depends on the make and model of the set. What set have you got?
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Mon Feb 13, 2017 11:05 pm Post subject: |
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Hello
You may need to generate a test pattern called stairstep. It comes standard on some projectors; you may need a generator for others/
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Mon Feb 13, 2017 11:47 pm Post subject: |
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As Curt said, it varies from model to model and there will be a manufacturer's recommendation to follow.
If you were to, for example, adjust a Marquee's G2 setting with the contrast at 60 and then do it again with the contrast at 30, you would get very different results.
You can start by identifying your projector. That should have been the very first thing to mention.
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Murillo
Joined: 30 Dec 2007
Posts: 113
Location: Sweden
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| Posted: Tue Feb 14, 2017 9:08 am Post subject: |
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My pj is Barco 1209 (the old one). Sorry I forgot to mention it.
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Murillo
Joined: 30 Dec 2007
Posts: 113
Location: Sweden
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| Posted: Thu Feb 16, 2017 11:28 am Post subject: |
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Anybody that can help me with this?
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Thu Feb 16, 2017 11:36 am Post subject: |
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Your google fu is weak. A simple google search for the 1209 manual would have taken you right here:
http://www.curtpalme.com/Barco1208_Downloads.shtm
Learn to use Google. Ask it any question you'd ask us. It will often lead you right to what you want to find.
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Murillo
Joined: 30 Dec 2007
Posts: 113
Location: Sweden
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| Posted: Thu Feb 16, 2017 12:41 pm Post subject: |
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Thanks but I wanted to know what to use as a reference when setting the G2. For example if here is a good pattern or a section from a Movie that can be used as a reference when comparing the tubes. I searched but couldnīt find it on Google.
Best regards
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Fri Feb 17, 2017 1:38 am Post subject: |
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Here's what I do. Put up a stepped gray scale, from 0 to 100 IRE. SHort out the jumpers on the CRT socket, all of them. Put brightness and contrast to 60. Set the drives and black levels to 50 in the color balance menu. Set the G2 pots so that 0 IRE is just lit up on the tube face, not enough to light up on the screen.
Done.
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Murillo
Joined: 30 Dec 2007
Posts: 113
Location: Sweden
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| Posted: Mon Feb 20, 2017 7:32 pm Post subject: |
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Thanks
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