Cleaning a rear projection TV

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Old 01-19-06, 06:51 PM
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Exclamation Cleaning a rear projection TV

I have a Mitsubishi 45 inch projection TV that I bought in 1995. I've noticed the past year I have to increase the "brightness" button, now it's all the way up. I've searched for answers and came across 4 people with the same problem. They resolved by cleaning the lenses and mirror inside. There's a build up of dust, dirt, smoke,etc... It sounds easy enough but I'm concerned with getting shocked even though the TV is unplugged. I heard somewhere it is possible to get zapped from a built up charge. Is there a way to ground myself or get rid of any current running through the TV?

Thanks for any suggestions
 
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Old 01-21-06, 11:17 AM
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Call a professional. The lens and mirrior can easliy be knock out of alignment and you'll wind up calling them anyway. Don't take the chance on getting zapped, it's not woth it, most reputable service shops can quote you for a service call before they show up.
 
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Old 01-31-06, 08:31 PM
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Originally Posted by gravyz
I have a Mitsubishi 45 inch projection TV that I bought in 1995. I've noticed the past year I have to increase the "brightness" button, now it's all the way up. I've searched for answers and came across 4 people with the same problem. They resolved by cleaning the lenses and mirror inside. There's a build up of dust, dirt, smoke,etc... It sounds easy enough but I'm concerned with getting shocked even though the TV is unplugged. I heard somewhere it is possible to get zapped from a built up charge. Is there a way to ground myself or get rid of any current running through the TV?

Thanks for any suggestions
While it may sound wierd, you unit may also have liquid cooling, when that liquid gets cloudy, so does the picture. I had it replaced in my old Magnavox and the difference in picture was night and day.

A pro can check that, as well as any adjustments and cleanings.

The mirror is usually fixed to the back and isn't likely to move. The lens should be tightened down once they were adjusted, but could be loose from heat cycling.
 
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