ViewSonic VS11856 Pro8100-1 Service Manual page 64

(2) Operation test
Buttons operation
Button description
Power button
Enter
4-way button
Source
Lens Shift
Menu/Exit
Foot adjuster operation
Foot adjuster.
Foot adjuster button
Zoom ring and Focus ring
Ring
Zoom ring
Focus ring
ViewSonic Corporation
1. Mechanical motion (Up & Down) should be free from getting stuck
when pressing the button
2. Press "power" button and projector will switch on
1. Mechanical motion (Up & Down) should be free from getting stuck
when pressing the button.
2. Press Enter button can To confirm selected menu item.
1. Mechanical motion (Up & Down) should be free from getting stuck
when pressing the 4-way button.
2.Use four directional buttons to select items or make adjustments to
your selections.
Manually selects an input source.
Motorized vertical and horizontal lens shift for positioning display
image without physically moving the unit.
Opens and Exits the on-screen menu
Foot adjusters should stretch downward smoothly by pressing the foot
adjuster buttons on the two sides
Mechanical motion (Up & Down) should be free from getting stuck
when pressing the button.
Press "Zoom" button should be free from getting stuck.
Mechanical motion (Up & Down) should be free from getting stuck
when pressing the button.
Press "focus" button should free from seizing.
Test criteria
Test criteria
Test criteria
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PRO8100-1