Question about JVC HD-61FN97 61" Television

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Dark Blotches A dark blotch, approximately 3" in diameter, has appeared on the upper right side of the screen. The blotch looks like a spot on a wall that has been struck by a wet ball. It is extremely visible on a light/bright screen, not on dark screens. Its not on exterior, and on light screen I can see makings of several other blotches. What's the fix?

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  • sgtmaj48bde Jun 14, 2008

    It was dust on the lens. Thanks for advice! A couple of more blotches had occured prior to 'fixing.' Again, advice was right on target.

  • JT in SA Dec 16, 2008

    I'm experiencing the same problem with dark blotches on the screen. I purchased it in Dec 06 and the blotches started appearing a few months ago. I cleaned the blub/projection lense with a dry cloth and used Q-Tips on the inner mirror lense. It seem to lighten the blotches but didn't completely remove them. Would it be advisable to use rubbing alcohol or vinegar with a soft cloth?

  • mcjjjcain Mar 31, 2009

    I have the same thing on an JVC HD 61FN97 rear projection. Did you just use a dry lens cleaning cloth or some type of cleaner also?

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We have the same TV
the dark spots will continue to grow (and multiply) as you use the TV, as they are caused by dust accumulating on the screen from the TV's cooling fan system.

Only way to get rid of the spots is to remove the screen (after you power it down and wait an hour for things to cool properly, unplug the TV and carefully remove the screen and clean it with the proper methods (screen cleaning equipment computers etc)
there will be some wires still attached to the screen once you get it separated, so go slow, steady and you will be set.

Good luck!

Scott
Woodinville, Washington

Posted on Dec 21, 2008

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This is probably caused by dust, either on the mirror, lens, or possibly inside the light engine. There is a 5" dia hole on the side of the back of the tv where you can take out one screw and take the door off. this is just big enough for you to put your hand through to clean the mirror and lens. Hope this helps.

Posted on Apr 02, 2008

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