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  1. Below is a picture of the inside of a projection TV. I put a green circle around what appears to be a mechanical focusing adjustment lever. What I don't understand is this: I can easily move the lever, and see that the large lens moves in and out as I move the lever. But, in my mind, for such a critical adjustment as focusing, I would think the focusing adjustment would be locked down with a locknut and wax, to prevent vibration from altering the adjustment. Can someone explain about this?
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  2. Member Cornucopia's Avatar
    Join Date
    Oct 2001
    Location
    Deep in the Heart of Texas
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    That looks alot like one I've got in my garage, but mine has wingnuts to lock it in place. Of course, I need to re-adjust periodically anyway, or anytime that it is moved...

    That's one thing I surely don't miss with the newer models!

    Scott
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  3. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    Try posting at this forum, there are some active TV experts there.
    http://www.avsforum.com/f/63/rear-projection-units
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