Question about Zenith Z25X22S 25" TV

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Blurry, purple cast to picture.

Mfr Date 2/1998. Sound OK, set has a full raster. Picture has a blurry, purplish cast. No burnt smell in case, removed board and looked for discolored or burned components- found none. I have no schematic and only a DMM for test equipment. Will try adjusting the focus control on the flyback but could it be the picture tube? What should I check next? Thanks In Advance. DH

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Check the crt cap that is connected to your picture tube...it may be greenish inside...try to change the crt...and adjust the focus...

Posted on Sep 03, 2008

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Sounds like theres a leaky capacitor in the screen drive circuit. I have seen this problem also be a gassy crt but was able to clean off the grids of the CRT with a crt/rejuvinator. It happens because of low emmissions in the tube and when white is on thats a mix of all the colors, so the tube works harder. I bet when you whatch a movie and the scene changes suddenly to a white or brite scene the pic looks a little washed out. If this is not the case then I aggree with the Pravin and try it on another TV just to be sure .. This is not a repair for a consumer to do, though however it is only a three year old set you stated, so there should be life left in the tube, so im kinda thinking a capacitor is bad. Seek out a yechnician to check this out for you as a TV is not a place to see it you can fix it or to exoeeriment with. Good Luck

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