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3.4. Deleting Buttons
A mechanism exists to delete an individual button that is already learnt into memory.
The transmitter must be available to delete the button in question from the receiver.
In other words, the transmitter may not be lost or stolen to remove a button from the
receiver.
1. Follow the steps to enter demastering mode. For reference follow steps one through
four in the Demastering Buttons section. The demastering mode channel need not be
the same as the channel associated with the button that must be deleted.
2. While in demastering mode, press and hold the button that must be deleted for
between 10 and 20 seconds.
3. On the leading edge of the button press, the receiver will emit a short single beep.
This is an indication that the receiver is receiving the button transmission.
4. After holding down the button for three seconds, the receiver will do one of two
things:
a. Emit a short triple beep if the button being deleted is a master button. This
triple beep indicates that the receiver is primed to demaster the button. If the
button is released in this window, it will simply be demastered (refer to the
previous section, Demastering Buttons, for further information on this operation).
b. Do nothing because the button being deleted is not a mastered button, and is
simply a button learnt into memory.
5. After holding down the button for 10 seconds, the receiver will emit a short beep to
indicate that the receiver is primed to delete the button.
6. After the short beep, the button must be released. As with all the other modes, the
required action (deletion in this case) only takes place on the trailing edge of the
transmitter transaction.
7. The receiver indicates a successful deletion operation with four short beeps.
Furthermore, the LED flashes quickly (64ms on/64ms off) for a period of 700ms.
8. Once deleted, the system transitions back to demastering mode. Further buttons may
be deleted by following steps 2 through 7. Remember, the system must remain in
demastering mode to delete buttons.
9. If no additional buttons are pressed within the 10s demastering period, the receiver
will automatically exit demaster mode. This exit is signalled by an extended single
beep. The Status LED also stops flashing and resumes its responsibilities in normal
mode.
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