Ativa AT22OH - Manual (Page 5)

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First Setup
Thank you for purchasing this high performance monitor!
This monitor comes with the following accessories :
Power Cable  User Guide 
D-Sub Cable (15 pin) 
Quick Installation
Connect power cord 1.
Connect the power cord to a properly grounded AC outlet, then to the monitor.
Connect video cable (D-Sub cable) 2.
Make sure both monitor and computer are powered OFF. Connect the video
cable ( D-Sub cable) to the computer, then to the monitor.
Power-ON computer and monitor 3.
Power-ON the computer, then Power-ON the monitor.
Windows users: 4. Setting the Timing Mode (Resolution and Refresh Rate)
Example: 1920 x 1080 @ 60 Hz
Resolution Right-click on the Windows desktop > Properties > Settings >
“Desktop Area”. Set the resolution.
Refresh Rate (vertical frequency) See your graphic card’s user guide for
instructions.
Example: