Dell Projector 1220 User Manual page 16

Installing Remote Control Batteries
NOTE:
Remove the batteries from the remote control when not in
use.
1
Press the tab to lift the battery compartment cover.
2
Check the polarity (+/-) marking on the batteries.
3
Insert the batteries and align their polarity correctly
according to the marking in the battery compartment.
NOTE:
Avoid mixing different types of batteries
or using new and old batteries together.
4
Slip the battery cover back.
16 Setting Up Your Projector
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