Lenovo ThinkVision LT2223p 21.5in LCD Monitor - Manual (Page 8)

Cable lock slot
Your monitor is equipped with a cable lock slot located on the rear of your monitor (in
the lower left corner). Please follow the instructions that came with the cable lock to
attach it.
Setting up your monitor
This section provides information to help you set up your monitor.
Connecting and turning on your monitor
N ote:Be sure to read the Safety Information located in the information flyer
before carrying out this procedure.
Power off your computer and all attached devices, and unplug the computer power
cord.
1-4 Flat Panel Monitor User’s Guide