Question about Televison & Video
I'm hoping you can point me in the right direction as I live in a semi-remote part of Alaska with no technicians. I'm not totally unfamiliar with electronics (I'm an electrical engineer by trade), but I've never repaired a television set. I have a Zenith 52" rear projection TV (8-10 years old but the circuit board was replaced two years ago). Recently the image started to get fuzzy. It began by slowly fading fazzy and clear every few minutes but now it's permanently fuzzy. I cleaned the lamps and the mirror, and while it helped, it didn't solve the problem. The color is fine, so it doesn't appear to be a convergence problem. Any recommendations?
Probably the EHT unit is failing or the Focus Control is out of adjustment or if it gets worse as the brightness increases, may need a new TV.
Posted on Apr 02, 2017
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Posted on Jan 02, 2017
Chris Palmer gives detailed instruction on how to replace the convergence IC's. Go to his blog at: http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Posted on Sep 26, 2007
sounds more like the flyback. What is the chassis number of your set. The flyback if thats what it is would cost under 50 if you replace it yourself maybe 150 if a shop does it. But post the chassis number as the chassis number would make it easier to try to figure out if its the flyback or not.
Posted on Mar 24, 2008
IS the screen white retrace lines ? Have you looked into the CRT lenses while they are on with a signal applied through the input to see if an image is displayed in the lens lens of the crt? Let me know what the answer is to these two questions and we will go to the next level.
Posted on Apr 10, 2008
Tips for a great answer:
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