19K4906 Vertical Adjustment

ckasek

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Picked up a galaga recently that has a WG 19k4906 monitor in it, and the screen is kinda funky. Theres about a 1/2 inch of black on the left side of the screen and the image is squished along the left edge, and the right side is a bit stretched out. I'll try to snap a picture in the morning.

Anyhow, I see that I have a horizontal shift, but there's no knob to adjust the vertical shift. I looked at the manual and saw the jumpers for the raster shift, but it really didn't do much. Is there another way to adjust the image? Any other recommendations?

Thanks!
 
Some 4900's have a vertical damping control. That might do something for you.

But, this might not be something you can adjust out. If you're getting foldover and such, it's probably time for new caps.

-Ian
 
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