Dell Projector 4100MP - Manual (Page 43)

Auto Learning to Change RF Remote Control Channel
l Select Yes with the control buttons to enter the Learning Standby mode. The projector will enter the RF Learning
mode and display the RF Learning menu.
l Press prgm button on the remote control for 1 sec to initiate the RF Learning process for the remote control.
l There are 2 ways for matching the channel between the transmitter (the remote control) and the receiver (the
projector), l) Auto: Press the Source button on the remote control for transmitting the signal in a new frequency
(which is randomly determined by the remote control). 2) Manual: Use the Up and Down buttons on the remote to
select your preferred channel. The remote control will then transmit the signal on the selected channel.
l When the channel matches on both ends (the remote and the projector) as indicated in the RF Learning menu,
press the Power button on the remote control to confirm and set the new channel. Or try again if it failed.