Question about Mitsubishi LT-40133 40 in. LCD HDTV

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Vertical lines on my 40 inch lcd mitsubishi hdtv 1080.

Vertical lines are color and are about 12 inches wide, they used to disappear after about 30 minutes but are now constant. The tv is 13 months old.

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  • phelony00200 Mar 31, 2009

    Brand new 46 in Mitsubishi dhtv 1080. Blue vertical lines on left side when first turned on. Now afte we hooked up our new HD cable box there is another line on the right. It goes away after about 20-30 min but for the $ we paid I'm worried it's going to get worse.

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I assume your Misubishi is not close to anything electrical. However, it sounds like you have had an interference for some time. This will ineviteably cause the HDTV LCD to collapse. LCD's don't respond well close to heat. Is there a vent close? LCD's do well in a properly vented area but with all this said.......they will pick up interference from anything electrical. A few questions to ask ones self........are there any wireless devices or chargers close to the LCD? Might there be an oven, a/c unit or other wiring with 220 volts anywhere close to the LCD such as in the wall?
The Mitsubishi LT is a very reliable, multi component ready set that allows great viewing with surround sound. However, stop and think about this interference. It is not something in the unit. It is an interference. Look hard and when you've discovered it.....you won't believe how crystal clear this set will be.
Let me know what you find...Thanks for using Fixya and add any comments that may help us help you.

Posted on Jan 16, 2009

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I have vertical lines on my 42 inch samsung hd tv that are purple at first i turned the tv off for 10 mins and they had gone but now they are back the tv is only 1 month old can you help?

Posted on Jul 12, 2009

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SOURCE: vertical lines on my 40 inch lcd mitsubishi hdtv 1080

Bad/Going Bad/Will go horribly bad TCON board (small circuit board sitting at the top of the panel in the back).

Most likely, the whole panel will need to be replaced in order to rectify the issue.

Posted on Aug 01, 2009

  • 1 Answer

SOURCE: vertical lines on my 40 inch lcd mitsubishi hdtv 1080

Similar problem with an eleven and a half month old LT-40148. Approx. 1 inch vertical banding line on left side of screen on all inputs. After about two weeks, same problem on the right side of the screen.

Fortunately this occurred two weeks prior to the one year warranty expiring.

Called Mits customer service and they referred me to an authorized service center who I happened to have dealt with before.

They picked up the set. The front panel (LCD screen ) had to be replaced. Set was gone for two weeks as parts were not in stock. There was no charge. I hope this screen last more than a year.

Posted on Nov 21, 2009

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Here is my suggested way to procede:


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Other Comments:
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They picked up the set. The front panel (LCD screen ) had to be replaced. Set was gone for two weeks as parts were not in stock. There was no charge. I hope this screen last more than a year.

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