Contrast on a crt

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karmeck
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Contrast on a crt

Post by karmeck »

Image

I have now started to Suffern from withdrawal. The bang olufsen contrast screen, I crave it.

The image above is from my Sony trinitron kv-x2963e. Image 3 is just when the image fades away for the next screen. I want that all the time. With my olufsen it was like that. beautiful scan lines.

I wonder now, can I buy a custom contrast glass. Google is giving me some answers but not in the 29 inch size.
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Syntax
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Re: Contrast on a crt

Post by Syntax »

Might be able to turn the flyback down a touch to get the desired result.
karmeck
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Re: Contrast on a crt

Post by karmeck »

Syntax wrote:Might be able to turn the flyback down a touch to get the desired result.
flyback on this tv only have focus adjustment. is that what Im looking for?

service manual can be found here by pressing "KV-X2961A" next to "Type a" ,page 24.
https://freeservicemanuals.info/en/serv ... /KVX2962U/
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Syntax
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Re: Contrast on a crt

Post by Syntax »

Nah don't touch focus.
You want screen.

It will dull the image, not exactly what you want but it may help.
You can also try dropping color/drive and see if it helps.
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Ex_Mosquito
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Re: Contrast on a crt

Post by Ex_Mosquito »

How about Resistors on the RGB line? I used to have to do this on my Megadrive through RGB Scart because the contrast the MD outputs was to high for the tv.
My Arcade 1-Credit Replays
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kamiboy
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Re: Contrast on a crt

Post by kamiboy »

Put on a pair of sunglasses.
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buttersoft
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Re: Contrast on a crt

Post by buttersoft »

There will be a Screen adjustment, but Sony normally didn't put it on the flyback. Because Sony. Try the neckboard, or better yet the service manual.

OP, you could look at spending $5 on a sheet of smoked perspex - any place that does plastic will have it. See if it works for you. If it does, consider investing more to have it bent, or get glass made. A lot of older arcade cabs used smoked glass. Not my style, but it does clean up the image in the way you describe.
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mikejmoffitt
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Re: Contrast on a crt

Post by mikejmoffitt »

You need to adjust gain / contrast, not screen or brightness.
Image
karmeck
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Re: Contrast on a crt

Post by karmeck »

mikejmoffitt wrote:You need to adjust gain / contrast, not screen or brightness.
Yeah I tested that and it worked. But why dose the olufsen have a screen then. Is it not kinda pointless if you can get the same effect using the settings.
gray117
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Re: Contrast on a crt

Post by gray117 »

karmeck wrote:
mikejmoffitt wrote:You need to adjust gain / contrast, not screen or brightness.
Yeah I tested that and it worked. But why dose the olufsen have a screen then. Is it not kinda pointless if you can get the same effect using the settings.
Are you talking about some kind of secondary glass filter screen? Unless this was actually clear and required only for protection or physical support (somehow to do with casing?) this is almost certainly pointless and I should think interfered with purity if it was tinted...
karmeck
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Re: Contrast on a crt

Post by karmeck »

gray117 wrote:
karmeck wrote:
mikejmoffitt wrote:You need to adjust gain / contrast, not screen or brightness.
Yeah I tested that and it worked. But why dose the olufsen have a screen then. Is it not kinda pointless if you can get the same effect using the settings.
Are you talking about some kind of secondary glass filter screen? Unless this was actually clear and required only for protection or physical support (somehow to do with casing?) this is almost certainly pointless and I should think interfered with purity if it was tinted...

here is what I want to achieve:

viewtopic.php?p=1254233#p1254233
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mikejmoffitt
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Re: Contrast on a crt

Post by mikejmoffitt »

All that will do is help with black levels as the CRT itself is not tinted.
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karmeck
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Re: Contrast on a crt

Post by karmeck »

mikejmoffitt wrote:All that will do is help with black levels as the CRT itself is not tinted.
And that is what I want.
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