ViewSonic VE150m Service Manual page 22

Control Explanation
Information displays an information menu showing technical information
and the product serial number. See below.
Image Adjust displays the Image Adjust menu.
The Image Adjust controls are explained below:
H. /V. Position adjusts horizontal and vertical position of the screen
image. You can toggle between Horizontal and Vertical by pressing button
[2]. Horizontal moves the screen image to the left or to the right. Vertical
moves the screen image up and down.
H. Size (Horizontal Size) adjusts the width of the screen image.
(Note: Vertical size is automatic with your LCD Display.)
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Confidential - - Do Not Copy VE150m/mb