InFocus IN1112A User Manual page 16

Problem
Image not square
Image not sharp
A B
Image does not fit 4:3 or 16:9 screen
Solution
Adjust Keystone on keypad
Adjust Sharpness in the Basic menu
Change aspect ratio to 4:3 or 16:9 in the Basic menu
15
Result
Square image
Correct image
A B
Correct image