On Wed, 14 Sep 2005 01:04:00 +0300 QJD1 wrote in
Message id: :

Unfortunately, there is no control for black level signal in this
monitor, there is only brightness and contrast. I wonder, if there is
other ways to control that black level, like dropping the voltages
feeding the backlight or otherwise modifying the circuitry.

Thank you for your response.

How about using a black Sharpie magic marker applied to the tubes
themselves?