Lenovo ThinkVision L1900 - Manual (Page 8)

4. Insert the power cord into the monitor, then plug the monitor power cord and
the computer cord into grounded electrical outlets.
5. Power on the monitor and the computer.
1-4 Flat Panel Monitor User ’s Guide
3. Connect the digital cable to the DVI connector of the monitor and the other end on the back of
the computer.
Note: The digital cable is not included with the monitor.