14This section describes how to turn on the projector and to project a picture onto the screen.❶ Flow of Projecting an ImageStep 1• Connecting your computer / Connecting the power cord (→ page 15)Step 2• Turning on the projector (→ page 16)Step 3• Selecting a source (→ page 18)Step 4• Adjusting the picture size and position (→ page 20)• Correcting keystone distortion [CORNERSTONE] (→ page 35, 102)Step 5• Adjusting a picture and sound- Optimizing a computer signal automatically (→ page 26)- Turning up or down volume (→ page 26)Step 6• Making a presentationStep 7• Turning off the projector (→ page 27)Step 8• After use (→ page 28)2. Projecting an Image (Basic Operation)