Your XR2i radio system is equipped with a five-year lithium battery backup system. This
system is designed to protect and retain all radio programming in the event that the
transmitter batteries drop below the required 9.0 volts, or the transmitter battery case is
removed during battery changes. If after five years it becomes necessary to replace the
lithium battery, return your system to the Horizon Service Center for repair (see address,
page __).
Memory Backup
If the Memory Backup screen appears, this indicates the possibility of a ROM problem or
the lithium battery is dead. If you switch the power off and on again, but the transmitter
is in the default mode with all data lost, it is strongly suggested that the XR2i transmitter
be returned to the Horizon Service Center for servicing (see Warranty Information page
__).
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Accessing the System Mode
To enter the System mode, press both the Scroll and Channel keys at the same time while
turning on the transmitter power switch. By pressing the Scroll key, you can now choose
Model Select, Model Name Input, Grip button C function or the Data Reset function as
shown here on the System Mode flow chart. Information for each function is located on
the page number listed next to the function name on the flow chart.
To exit the System mode, press the Scroll and Channel keys at the same time or simply
turn off the transmitter.
Note: If you turn the transmitter off and immediately enter System mode again, you will
be returned to the last System mode function used instead of the model select function.
While in System mode, there is no RF output generated by the transmitter. Adjustments
can be performed with reduced battery power consumption. If you exit System mode by
pressing the Scroll and Channel key at the same time, RF output will not be enabled until
you first turn off the transmitter.
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Model Select
(System Mode)
The XR2i has memory for two models. This feature allows for two different models to be
operated with the same transmitter (additional receivers and servos must be purchased
separately) or one model with two different race setups.
Accessing the Model Select Function
