Focus knob on arcade monitor: Convergence?

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Posted by Tom A. on 29, 2001 at 6:35 PM:

Hi folks,

I still haven't shelled out the $50 to buy a deguassing wand for my new Sharp Image 27" VGA arcade monitor in my ArcadePC because the image has gotten better... but it's not perfect yet. I may end up buying one after all but I want to wait another week or so before deciding.

I do have what appears to be a convergence problem at the very top 10 lines or so of the tube. Or could this be related to deguassing? With white text, I can clearly see the separate R,G,B colors so I assume the convergence is either out or the monitor just isn't capable of displaying a full sized image.

My question is, what exactly does the focus knob on the flyback transformer do? Is it involved with convergence or is it a hokie sharpness type control?

How does one adjust convergence on one of these arcade VGA monitors?

-Tom A.

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: Hi folks, : I still haven't shelled out the $50 to buy a deguassing wand for my new Sharp Image 27" VGA arcade monitor in my ArcadePC because the image has gotten better... but it's not perfect yet. I may end up buying one after all but I want to wait another week or so before deciding. : I do have what appears to be a convergence problem at the very top 10 lines or so of the tube. Or could this be related to deguassing? With white text, I can clearly see the separate R,G,B colors so I assume the convergence is either out or the monitor just isn't capable of displaying a full sized image. : My question is, what exactly does the focus knob on the flyback transformer do? Is it involved with convergence or is it a hokie sharpness type control? : How does one adjust convergence on one of these arcade VGA monitors? : -Tom A.

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