Asus VH242TL - Manual (Page 14)

2-2 Chapter 2: Setup
2.2
3
The monitor height adjustment lock should NEVER be removed BEFORE you
place the monitor VERTICALLY on a flat surface.
To assemble the monitor base
1. Have the monitor base place on a flat table.
2. Use the screw, lock the base to the arm according to the below drawing.
3. Remove the monitor height adjustment lock.
Assembling the monitor base
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1