When setting up a new mode, reset all parameters to 
their default or factory settings before proceeding with 
any other programming. This ensures there are no 
programming elements left from a previous model or 
programming session.
If you are setting up a model for the first time, you can 
skip this step and move to the TYPE SELECT function.
1. In the SYSTEM Menu, highlight and select MDL 
Reset using the Selector.
2. Press the CLR button next to RES on the display.
 
3. Press the lowermost button next to YES on the display 
to reset all data for this model.
4. Return to the SYSTEM Menu by pressing the 
LIST button.
3. Verify the top model is the model you will back up and 
the lower model is empty or no longer needed. Then 
press the CLR button on the left side of the display 
next to COPY. The entire contents of the currently 
selected model copy to the lower model on the display 
and there is now a complete backup of the current 
model. The upper and lower model memory names are 
now the same because they are identical.
.
You can use the backup copy to restore the original any time 
by performing the Copy function and reversing the order of 
models copying the backup into the original.
Note: As the X9503 2.4 has the ModelMatch feature, 
in order to operate the receiver on a new model 
number, you must first re-bind the receiver to the 
new model in order for it to function.
To change the lower model memory that will receive the 
copy of the current model, highlight and select the lower 
model name and number. Then scroll to an unused model 
memory or a memory containing data no longer needed, 
and select it.