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Gamma-x "pulse"

 
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wgmontgomery



Joined: 04 Jun 2014
Posts: 5

PostPosted: Mon Jul 21, 2014 3:43 pm    Post subject: Gamma-x "pulse" Reply with quote

I just connected a gamma x to my HDFURY2; I played with the slider a bit (which side is more gain?) but during some scenes the screen gets really bright/lite. Darks ARE better, but when a bright/normally lit scene comes-on, the pic looks almost washed-out. It doesn't happen all of the time and is intermittent.
Any ideas?
Also, should I connect a power supply to the gamma x too? I have one connected to the HDFURY2, but I wondered if connecting a power supply to the gamma x might fix my problem.
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CHUN



Joined: 01 Jan 1970
Posts: 3664

PostPosted: Mon Jul 21, 2014 3:50 pm    Post subject: Reply with quote

Hi there
What type of display are you using this on?
As it is only meant for crt type displays and bug crt projectors. It is not needed or should be used on any digital display.

Please report back.
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wgmontgomery



Joined: 04 Jun 2014
Posts: 5

PostPosted: Mon Jul 21, 2014 4:07 pm    Post subject: Reply with quote

Fujitsu plasma via RGBHV...FWIW-it DID improve pq
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CHUN



Joined: 01 Jan 1970
Posts: 3664

PostPosted: Mon Jul 21, 2014 4:10 pm    Post subject: Reply with quote

Hi there

You should be able to calibrate your display and not need the gammax. Bit if you like it and it imporives the pic then thats great. But if you increase the detail in black it will cause the pic to wash out on a digitial display. But if you use it mildly then it should be fine. You will need to find a happy medium.
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wgmontgomery



Joined: 04 Jun 2014
Posts: 5

PostPosted: Mon Jul 21, 2014 4:21 pm    Post subject: Reply with quote

So...I should set the Gamma x & re-calibrate my display? I was going to do that anyway. Which side of the slider is "less" & which is "more" signal gain?
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CHUN



Joined: 01 Jan 1970
Posts: 3664

PostPosted: Mon Jul 21, 2014 4:24 pm    Post subject: Reply with quote

It depends which way it is facing. But as you move the slider from left to right then the picture should become more washed out.
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wgmontgomery



Joined: 04 Jun 2014
Posts: 5

PostPosted: Mon Jul 21, 2014 6:09 pm    Post subject: Reply with quote

Say I'm holding it up (output is on top and input on bottom) left would be "less" & right would wash-out pic more? What exactly does it do? Add/subtract Y or C (luminescence or Chrominance)? Understanding exactly what the Gamma x adds/subtracts/changes should help when I re-calibrate as it will be a factor in pq.
THANKS!!
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CHUN



Joined: 01 Jan 1970
Posts: 3664

PostPosted: Mon Jul 21, 2014 6:16 pm    Post subject: Reply with quote

The gamma-x affects gamma.
Please read though
http://www.curtpalme.com/GammaX.shtm

it changes how fast the display comes out of black in basic terms.
You are correct in the orientation.
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wgmontgomery



Joined: 04 Jun 2014
Posts: 5

PostPosted: Mon Jul 21, 2014 6:32 pm    Post subject: Reply with quote

wildchild22 wrote:
The gamma-x affects gamma.


DUH!! That's not directed at you BTW...it's more of a "if it was a snake..." sorta' thing.
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