Proxima DP8200x User Manual page 22

Projector troubleshooting
Problem
Image not square
Image not sharp
A B A B
Image does not fit 16:9 screen
Solution
Adjust keystone on keypad or Picture menu
Adjust the focus lens or Sharpness in the
Picture>Advanced menu
Change aspect ratio to 16:9 in
Picture>Aspect ratio menu
20
Result
Square image
Correct image
A B
Correct image