Black Box AC401A - Manual (Page 31)

30
REAL COLOR AND MONOCHROME 16 LCD PROJECTION PANELS
• The power supply may not be
plugged into a live AC outlet.
Check to ensure that the power
supply is connected to the
Projection Panel and to a live
AC wall outlet.
• Your power supply may be
plugged into a power strip
that is not turned on.
• Your overhead projector may not
be set up correctly. Check to
see that the projector is on and
plugged in properly. Also check
the bulb, and make sure the
overhead deflector is correctly
positioned.
• You Projection Panel may not be
adjusted properly. Also, check
and adjust the contrast and level
control settings.
Problem : Color or VGA text not
being projected.
Possible Causes and Solutions :
• Your level control may need
to be adjusted. Adjust the
Projection Panel level control up
or down until the text is visible.
• Your software may be displaying
colors that are too similar. Set
your software to increase the
difference between displayed
colors.
Problem : Image not centered on
the screen.
Possible Causes and Solutions :
• Adjust position to center image
on screen.
Problem : Only the test pattern is
being displayed.
Possible Causes and Solutions :
• Your Projection Panel video
cables may not be connected
correctly. Check to see that the
cable is connected to the video
port on the computer’s graphics
card.
• Your computer graphics system
may not be set up correctly.
Check the following: your
computer’s color graphics card
is turned on; your computer has
a compatible graphics card; and
the computer’s external video
card has been turned on.
Problem : Image is too wide or
narrow for screen.
Possible Causes and Solutions :
• You may need to adjust the
tracking to reduce or enlarge
the projected image.
• Check to see that your computer
is using a compatible graphics
card.
• You may be using a high-
resolution display card.
Make sure your computer is
compatible. Change the
resolution if you can.