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Zap sound...

 
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jkruger



Joined: 24 Oct 2007
Posts: 2435
Location: Carlsbad, CA

Posted: Wed Nov 14, 2007 4:24 pm    Post subject: Zap sound...
My 1272 made a funny sound right after ceiling mounting it. Sort of a bzzzt sound, (like a bug zapper) with some scrambling of the picture. It did it only twice, about a minute apart, and has not done it again in about 8 hrs of run time. Prior to mounting it ran on a table for about 30 hrs with no errant behavior. I had slowed the ps fans with 5v zeners to quiet it down, but when it made the noise it was cold and had been flipped over and mounted just prior to that. What could this be? Shocked
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!
Posted: Wed Nov 14, 2007 4:32 pm    Post subject:
Hv arcing. I would blow out the set, especially around the HV area to make sure everything is clean. THen leave it alone..Smile
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jkruger



Joined: 24 Oct 2007
Posts: 2435
Location: Carlsbad, CA

Posted: Wed Nov 14, 2007 4:47 pm    Post subject:
Yeah, I was pretty sure it was hv arcing but thought there might be a particular thing to look at.. Think it was just contamination?
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