Acer H7530 Series - Manual (Page 33)

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English
Note: "H. Position", "V. Position", "Frequency" and "Tracking" functions
are not supported under HDMI or Video mode.
H. Position
(Horizontal
position)
• Press to move the image left.
•
Press to to move the image right.
V. Position
(Vertical position)
•
Press to move the image down.
• Press to move the image up.
Frequency "Frequency" changes the projector's refresh rate to match the
frequency of your computer’s graphics card. If you can see a vertical
flickering bar in the projected image, use this function to make the
necessary adjustments.
Tracking Synchronizes the signal timing of the projector with the graphics card.
If you experience an unstable or flickering image, use this function to
correct it.