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Old 03-31-2010, 08:49 PM
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leadlike leadlike is offline
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Join Date: Apr 2008
Location: Lancaster, Pa
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I found an adjustment for the horizontal on the schematic (L21) and began twisting away. It functions almost as a course horiz. frequency adjustment, so the picture quickly pulled into sync a faint image of my B&K test pattern. Hooking up a dvd player revealed a scrambled mess of a picture. the difference in sources was enough that I had to readjust everything again. Now I have an image to play with!

GEDC0169.jpg

Vertical lock is pretty well nonexistent, but I am more concerned about the faintness of the image. For this tv, since all the contrast control does is ramp up the plate voltages on the IF, I will need to find another way to tighten up this image. retrace lines are everywhere, too, but the lack of vertical hold is probably contributing to that.
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