LG DU-52SZ40D Owner's Manual page 23

Installation
10. Screen 8: Cable Box Brand Name
•Use the D E buttons to select a cable box brand.
/
•Press ENTER to display Screen 9.
11. Screen 9: Cable Box Preparation
Follow the on-screen instructions, and press ENTER to display
Screen 10.
12. Screen 10: Cable Box Code Testing
When testing is done, Screen 11 displays automatically.
13. Screen 11: Cable Box Tuned to Channel 9?
If you select Yes, you see Screen 12.
If you select No, a different code is tested in Screen 10.
Notes: Many Cable Boxes require testing more than one code.
If you select Test this code again, the same code is tested again
in Screen 10.
DLP Projection TV