Thank you very much for your answer dear friend
This code is for a satellite receiver called Media Star.
By the way, I did what you said before and converted the code 20de906f through the yamaha website, but the code I received from the website output was wrong.
I tested each of the remote controls through irplus software, and a few of the other companies' remote controls were able to turn the satellite receiver on and off, but the rest of the code was wrong, such as key 1 to change the sound.
The pronto code is one of those devices that I send to you at the end and it turns on and off properly.
I matched the code generated from the output of the yamaha website after the 20 de906f change to the pronto code for another device and they were not the same, so I say the output of the yamaha website was incorrect
Correct pronto code:
0000 006D 0022 0002 0156 00AC 0016 0040 0016 0015 0015 0015 0016 0015 0016 0015 0016 0015 0015 0015 0016 0016 0016 003F 0016 0015 0015 0040 0015 0041 0015 0040 0015 0040 0015 0040 0015 0040 0015 0015 0016 0015 0016 003F 0016 003F 0016 0040 0016 0015 0015 0040 0015 0041 0015 0041 0015 0041 0015 0015 0016 0015 0016 0015 0015 0040 0015 0016 0015 0015 0016 05FA 0156 0055 0015 05FA