BenQ MP511 - Manual (Page 36)

Operation 36
You can set the blank time in the SYSTEM SETUP: Basic > Blank Timer menu to let the
projector return the image automatically after a period of time when there is no action taken
on the blank screen.
Once BLANK is pressed, the projector enters Economic mode automatically.
Do not block the projection lens from projecting as this could cause the blocking object to
become heated and deformed or even cause a fire.
Locking control keys
To prevent unauthorized changes in the settings or accidental button pushes, panel key lock
can be activated to disable all panel key functions except POWER.
1. Press Right/ on the projector or
remote control or go to SYSTEM SETUP:
Basic > Panel Key Lock , and select On by
pressing Left/ Right on the projector
or remote control.
2. A confirmation message displays. Select Yes
to confirm.
To release panel key lock, press and hold
Right/ for 3 seconds on the projector or
remote control.
You can also use the remote control to enter SYSTEM SETUP: Basic > Panel Key Lock
and press Left/ Right to select Off . A confirmation message displays. Select Yes to
confirm.
• Buttons on the remote control are still in use when panel key lock is enabled.
• If you press POWER to turn off the projector without disabling panel key lock, the
projector will still be in locked status the next time it is turned on.
Freezing the image
Press the FREEZE button on the remote control to freeze the
image. The word 'FREEZE' will display in the upper left corner of
the screen. To release the function, press any button on the
projector or remote control.
Even if an image is frozen on the screen, the pictures are running
on the video or other device. If the connected devices have active
audio output, you will still hear the audio even though the image
is frozen onscreen.