Universal Remote Control (URS) MX-500 - Manual (Page 24)

7. Once you complete the programming and wish to exit
the Learning mode, press the MAIN button. Exit from the
SETUP mode by pressing the MAIN button once again.
Tip: Only follow these instructions if you actually want a
code sent when changing devices. Some users do not want
a Device to send out a code when changing to that device.
For example: You program the AMP's TV input code on the
TV device, and are in the DVD device pages because you
are controlling the DVD player. The AMP's input is set to
DVD. Now you want to quickly adjust the picture on the TV.
If you push the TV Device button, it will change the input
on your AMP to TV and you will not be able to adjust the
picture for your DVD. In this case, it would be better not to
program a code to the TV device. However, your
circumstances may be different.
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4. Programming the MX-500 TM to Control Your Components