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Zenith 32" tube tv going out?

Hi all,
Great site. I have a Zenith 32" SL3285BG tube set. Its approx. 12 years old. What is happening is when you first turn it on it has a purple-ish- pink
picture. After about 10-15 minutes, the picture returns to normal. Seems after it heats up the picture is ok again. Do you have any suggestions as what component might be causing this and would it be something I can replace?
As A side note, about 5 years ago the set had a bunch of white horizontal lines on the screen. Finding info on the net, I bought a ESR meter (dick smith), and end up replacing eight capacitors. I think they were on the power supply board. That fixed the problem. I have worked on this set before and would tackle it again with the right guidance. Thank you for any assistance!

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Re: Zenith 32" tube tv going out?

This is classical intermittent condition. These are caused by loose wire, cold solder joint, corroded terminals or such type of malfunction. They are extremely difficult to find, but easy and cheap to fix once you find them.
Probably only 50% of them are ever found; most of them are "lived with" by finding a proper slap on the back of the set, a book or magazine under one corner or something that puts enough torque or twist on the chassis to get the picture working, then just carefully leave it in that position and don't bump it again.
If you want to really find it, you will be better off doing the sluething by yourself than taking it to a shop because their time is money and the cost of labor to hunt it down may be expensive. (With luck it might be found quickly, but on average it takes along time even for a trained expert tech to find them).

Posted on Dec 13, 2007

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