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Apfelmousse
Joined: 26 Apr 2014
Posts: 74
Location: Germany
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| Posted: Sun Jun 15, 2014 3:20 pm Post subject: BG 808 horizontal phase on 75 for basic adjustment? |
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Hi,
this weekend I am installing my BG on the ceiling. The structure is ready, so I made some basic adjustments, mainly resetting everything to 50 and aligning the raster.
Curiously, once I did that, the image was very much closer to one side than to the other, and it required me to put the horizontal-phase control to 75 to get it centered.
Is this normal, or is there some other control that is not correctly centerd?
I try to join some images. Enjoy.
cheers
Martin
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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: Sun Jun 15, 2014 4:10 pm Post subject: |
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If the test pattern is centered but the image only is off to one side (as I suspect), you're fine with the H phase at 75.
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Apfelmousse
Joined: 26 Apr 2014
Posts: 74
Location: Germany
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| Posted: Sun Jun 15, 2014 9:53 pm Post subject: |
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| Curt Palme wrote: | | If the test pattern is centered but the image only is off to one side (as I suspect), you're fine with the H phase at 75. |
Thanks for the confirmation.
I had some doubts as I thought it was maybe a sync problem, but its consistent in all ranges of horizontal frequency and with all entries on the Barco. Except for 3, as the board is missing...
The internal test pattern in the "Installation" menu is well centered, actually it covers the whole raster.
There does not seem to be a "vertical phase" alignment? Nor something which allows to widen the image without widening the raster? Since I have to avoid the raster being outside the phosphor area I feel like wasting a lot of real estate on the screens.
cheers
Martin
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Hulio
Joined: 15 Apr 2006
Posts: 494
Location: Belgium
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| Posted: Mon Jun 16, 2014 8:32 am Post subject: |
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Martin,
There is no need for a vertical phase. You use the raster shift in the installation menu to center the raster and vertical size in the geometry menu in order to fill your screen.
If you put everything on mid. position in the menu and you are not able to center verticaly, your projector could be too high (or to low) mounted.
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