Let's start with the basics. Does setup code TV/0250 work with your TV? If so, [Link: hifi-remote.com] has all the known advanced codes for that setup code.

If so here is the explanation from Rob Crowe:

Here are the instructions for the 15-2116....

1) Hold SETUP (green P), till screen reads "CODE SET"
2) Scroll down to "KEYMOVER",
3) Press SELECT, screen reads "FROM MODE"
4) Press the device button the code is coming from, screen
reads "FROM KEY"
5) Press SETUP, screen reads "SYNT"
6) Type the 3 digit advanced code
7) Press SELECT, screen reads "TO MODE"
8) Press the device button the code is going to, screen reads "TO KEY"
9) Press the button you are trying to program, screen reads "SUCCESS"