Vertical Bands

I was getting vertical white bands in the shadows so it was suggested
that I do a lamp controller adjustment. Now the bands are worse-wider
and in the entire length of the scan. When it tells you to "turn the
lamp adjustment screw clockwise until you hear a click"; how many
revolutions should that take? After several revolutions I never did
hear that click so I just stopped when the two rightmost LED`s were lit
up. What have I done wrong? Could the bands be caused by something else?
Mike

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Dirty RGB & Gray filters did it to me.

Jim

Mike Sellers wrote:

> I was getting vertical white bands in the shadows so it was suggested
> that I do a lamp controller adjustment. Now the bands are worse-wider
> and in the entire length of the scan. When it tells you to "turn the
> lamp adjustment screw clockwise until you hear a click"; how many
> revolutions should that take? After several revolutions I never did
> hear that click so I just stopped when the two rightmost LED`s were lit
> up. What have I done wrong? Could the bands be caused by something else?
> Mike
>;
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