Dell 1210S User's Guide download pdf (Page 32)

HORIZONTAL POSITION—Press to move the image to the left and to move the

image to the right.

ERTICAL POSITION—Press to move the image down and to move the image

up.

REQUENCY—Allows you to change the display data clock frequency to match the

frequency of your computer graphics card. If you see a vertical flickering wave, use

Frequency control to minimize the bars. This is a coarse adjustment.

RACKING—Synchronize the phase of the display signal with the graphic card. If you

experience an unstable or flickering image, use Tracking to correct it. This is a fine

adjustment.

Using Your Projector 32

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Dell 1210S User's Guide Page 32