Question about Mitsubishi TS-5545 55" Rear Projection Television

1 Answer

Black horizontal lines

Recently, groups of "cycling" black horizontal lines appear on the screen on all inputs. There is about a centimeter of space between each group of horizontal lines. The lines go from barely noticeable to obvious and back in a continuous cycle, and seem to move up the screen, then become momentarily stationary, move down the screen, and finally back up again. At first I thought it was some sort of outside interference, but now I believe it is some sort of "scanning" issue.

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  • zenlizard Jan 19, 2008

    Thank you very much for the suggestion. I haven't had time to find out if I can solve the problem using your suggestion, so I don't see how I can rate the solution at this point. I willl be sure to do so when I get a chance to get into the circuitry.

  • ZZNOTOP Jul 28, 2008

    Same problem as zan lizard with the black lines. I will try to get the EE at work to help me with the tester and replace the bad capacitor.



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Sounds as if you have a bad capacitor in the horizontal deflection or video circuitry. You can spot a bad capacitor in circuit with a ESR meter.Hope this helps.

Posted on Jan 17, 2008


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