Question about Mitsubishi VS-55705 55" Rear Projection Television

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Black horizontal lines appear after tv is on for 30 minutes

After the tv is on for about 30 minutes black lines running horizontally appear on the screen.  They can vary from the whole screen to several bunches of 7 to 8 lines in each group.  If the tv is turned off for an hour and turned back on the lines will appear inabout the same time frame.

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Kellia,

I had the same problem with our VS-55705 Mitsubishi. It seemed to me that this was a problem of heat.

I unplugged the TV and then took the cover off of the back of the it. I then used canned air to blow off the collection of dust from the components. Then I vacuumed as close to everything as I could without touching any of the components. I then used glass cleaner to clean up the surface of the three bulbs.

I plugged in the TV and it has worked perfect ever since. I haven't put the rear cover back on it yet. That could have been all that I needed to do to fix it. I'm too busy enjoying a nice picture to try putting it back on. Cleaning the bulbs really helped the quality of the picture.

Good Luck!

Posted on Jan 23, 2008

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Posted on Jan 02, 2017

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