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Xerox DP 820 User’s Guide 23
User Controls
Display Menu
Phase—Synchronizes the signal timing of the display with the
timing of your computer’s graphics card. If the image flickers or is
unstable, adjust the phase until the image is stable.
• Press the button to decrease the phase.
• Press the button to increase the phase.
Tracking—Changes the display data frequency to match the
frequency of your computer’s graphics card. If vertical flickering
lines appear on the image, adjust the frequency until they
disappear.
• Press the button to decrease the frequency.
• Press the button to increase the frequency.
H. Position—Moves the image left and right on the screen.
• Press the button to move the image left.
• Press the button to move the image right.
V. Position—Moves the image up and down on the screen.
• Press the button to move the image up.
• Press the button to move the image down.