25K7191 how to fix top of screen

blarue11

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I am new to this =o) I recently got this machine a couple weeks ago. When I got it the top of the screen was distorted and the color was all off. I was able to adjust the coloring with the contrast and other knobs but im not sure how to fix the distortion/wave at the top. I do plan on getting a cap kit for it soon but was just wondering if that will fix it or if there is something else that needs to be done. Thanks for the assistance
 

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there is a 50/60Hz pot located behind the Horizontal Hold pot. You can adjust it to see if this clears up.

Otherwise, you probably need a cap kit installed...
 
I had the exact problem recently on my K7000 and it turned out to be the tube. It was incompatible with the chassis. I put the chassis on another tube, and it cleared right up. I had already done a cap kit, so I know that wasn't it. Here are some pics...

This is the K7000 on the incompatible tube..

CIMG2648.jpg


CIMG2646.jpg


Here is the exact same chassis on a different tube with no adjustments or changes made...

CIMG2652.jpg


CIMG2651.jpg


It's possible that a cap kit will fix your problem, but I'd try adjusting the horizontal hold pot or the 50-60 pot.
 
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