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MYoung
Joined: 24 Feb 2007
Posts: 369
Location: Madison, WI
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| Posted: Thu Jan 17, 2008 5:45 am Post subject: Flickering on green tube of 1292Q |
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I have noticed that I occasionally get flickers of magenta when watching content on my 1292Q. I threw up a test pattern to make sure that it wasn't my source. I found I especially get it on the test patterns. I then cut off the red and the blue tubes thinking that the magenta I was seeing was really just an absence/problem with green, which it was. This is only happening on green. Red and blue are clean. What I see reminds me of a loose composite video connection -- how the picture just flickers and gets garbled. It is intermittent, though it seems to have been getting worse, though it's not like I put very many hours on my 1292Q. I'll have to take some video of what I'm seeing. I know that's not too specific, but any clues as to what might be wrong? Perhaps a bad neckboard? I had a bad neckboard for the red tube that I replaced about a year ago. Man, was that was a bunch of fun! Fortunately, Graham Johnson is the man and helped me out! Though it was a different symptom then -- a black picture source appearing as dark red instead of black.
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kypha
Joined: 26 Dec 2006
Posts: 57
Location: 89103
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| Posted: Thu Jan 17, 2008 6:03 am Post subject: |
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I had that problem once with the ribbon cable that's attached to the top of the neckboard. It was loose
inside of that snap-type connector. It caused the red tube to shut off, flicker and bloom. You probably
checked that already, though.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Thu Jan 17, 2008 2:58 pm Post subject: |
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If you've checked all the connections then try swapping that neckboard with another one and see if the problem follows or stays there.
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MYoung
Joined: 24 Feb 2007
Posts: 369
Location: Madison, WI
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| Posted: Thu Jan 17, 2008 4:37 pm Post subject: |
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Thanks for the advice. I'll have to give that a try.
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MYoung
Joined: 24 Feb 2007
Posts: 369
Location: Madison, WI
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| Posted: Sat Jan 19, 2008 2:57 am Post subject: |
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Re-seating cables leading to the green tube appears to have fixed it. Whew!
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kypha
Joined: 26 Dec 2006
Posts: 57
Location: 89103
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| Posted: Sat Jan 19, 2008 1:09 pm Post subject: |
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Which cables?
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