Question about LG RU-44SZ51D 44" Rear Projection HDTV-Ready Television

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Rear projection TV (LG 44SZ51): Horizontal dark band on upper screen field

I have this TV for 3 years. 3 months ago, a horizontal dark band (not black, i can see the picture there but it is considerably darker than the rest of the screen) of about 10-15cm width (not perfectly straight border line) appeared. Initialy i thought it was humidity on the mirror. I opened the case but there was nothing on the rear mirror. I didn't want to mess around with other parts of the device and the dark band is still there...
Is it possible that the lamp comes to the end of it's life and needs replacement? No indicator of such problem on the TV though. What could cause this? I don't know if i can find a technician for such a TV in my town...
Any ideas are welcome. Thank you in advance

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  • diosif Mar 30, 2008

    I made a mistake. The TV is the LG 44SZ21 (if i recall correctly because right now I am not home and i can't check it) but i think the problem is not so much model specific anyway...

  • Pausdale Jun 15, 2008

    Have almost the same problem. From the left about half way across it is dark but can still see picture sort-of, then 1/4 is a little liter and about 4" from the right it is normal. What is causing this problem?

  • elchat Nov 20, 2008

    I have the same problem but on another model. ru-44sz61d. Any solutions?

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  • 21 Answers

The LG 44SZ21RB Have a problem with their light tunnel collasping due to the heat from the lamp. They are available as a spare part @ LG and would also require some silicon adhesive to bond it into the assembly. Very tedious job for any technican (2-3 hrs). Lg will not release parts to the general public only to an authorised LG agent.

Posted on Apr 23, 2008

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