4.ProgrammingtheMX-500TMtoControlYourComponents 
12.When you are finished programming your remote, exit from the preprogramming mode by pressing the MAIN button and then exit from the SETUP mode by pressing the MAIN button once again.
Tip: You can change the preprogrammed code for each device at any time by following the steps above. The new code will override the old code. For example, this would be done if you replaced your old TV with a new one.
2. Auto Scan With Three-Digit Number
You can also program your remote control by sending out a series of Power Off commands for different brands stored in the library by using the following steps. This is similar to the first method, except it is easier to move through all of the device codes for your device and make note of each one that turns your device OFF.
1.Manually turn on the device you plan to operate.
2.Go to the SETUP mode by pressing both the MAIN and ENT buttons simultaneously for three seconds.
3.Press the
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