If
the projector's buttons have been locked, do one of the
following:
- To disable the child lock setting, press the
menu button on the remote
control and select Settings >
Operation > Child Lock > Off. You must turn the projector off and then
on again to disable the setting. - To release control panel lock, press and hold the
volume down button on
the control panel for about 7 seconds. A message appears and the
lock is released.