Question about Mitsubishi WD62527 62 in. LCD HDTV

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62 in LCD mitsubishi

There is a soft dull scratching/thumping sound that is heard inside the tv. when the vol. is turned down, it is heard mostly with a moving video image. Is this normal?

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My guess would be its the fan that cools the lamp. They tend to get dirty.

Posted on Jun 16, 2012

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Your Mitsubishi projector has a srevo controlled shutter that is used to enhance the blacks. The noise you hear is the high speed srevo motor responding to the video information. This is normal. You should not hear the noise when the volume is at a normal listening level. If you can hear the noise over normal volume then your servo motor may have a bad bearing.

Posted on Nov 21, 2007

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Not too sure about the thumping, possibly the cabinet expanding and/or contracting with heat, the lack of and weather change. But the scratching sound could very well be the HV discharge. So, not being able to hear it myself, I would suspect that yes it's probably normal.
Bill

Posted on Nov 21, 2007

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The poster above is obviously inexperienced with this type of thing.

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