View Single Post
  #10  
Old 03-31-2010, 08:49 PM
leadlike's Avatar
leadlike leadlike is offline
VideoKarma Member
 
Join Date: Apr 2008
Location: Lancaster, Pa
Posts: 956
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.
Reply With Quote
Audiokarma