ViewSonic LS820 LS810 User Guide English - Page 42

Hiding the image, Locking control keys

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Hiding the image In order to draw the audience's attention to the presenter, you may press Blank to hide the screen image. Press any key on the projector or remote to restore the image. After hiding the image, the lower right corner of the screen will display the text [BLANK]. You can go to Basic > Blank Timer menu to set blank screen duration. Once the blank screen countdown is complete, the image will be automatically re-displayed. After pressing [Blank], the projector will automatically enter Power Saving mode. Caution Do not block the projector lens. The blocking item may be heated to the point of deformation or may even cause a fire. Locking control keys Locking the control buttons of the projector allows you to prevent projector settings from being changed accidentally (by children, for example). Once Panel Key Lock has been activated, with the exception of the Power button, none of the buttons on the Projector could be used. 1. Press (Panel Key Lock) or enter System Settings > Panel Key Lock menu. 2. Press / and select ON. 3. A confirmation message will be displayed next. Select Yes to confirm your choice. To switch off the Panel Key Lock, press and hold the button on the Projector for 3 seconds. You may also use the remote to enter System Settings > Panel Key Lock menu, press / and select OFF. Buttons on the remote control can still be used even if the Panel Key Lock function has been switched on. If you press the Power button to switch off the projector without switching off the Panel Key Lock function, the projector buttons will remain locked when you switch it on the next time. 35

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35
Hiding the image
In order to draw the audience’s attention to the presenter, you may press Blank
to hide the screen image. Press any key on the projector or remote to restore the
image. After hiding the image, the lower right corner of the screen will display the text
[BLANK]
.
You can go to
Basic
>
Blank Timer
menu to set blank screen duration. Once the
blank screen countdown is complete, the image will be automatically re-displayed.
After pressing [Blank], the projector will automatically enter Power Saving mode.
Caution
Do not block the projector lens. The blocking item may be heated to the point of deformation or
may even cause a fire.
Locking control keys
Locking the control buttons of the projector allows you to prevent projector settings
from being changed accidentally (by children, for example). Once
Panel Key Lock
has been activated, with the exception of the
Power button, none of the buttons on
the Projector could be used.
1.
Press
(Panel Key Lock)
or enter
System Settings > Panel Key Lock
menu.
2.
Press
/
and select
ON.
3.
A confirmation message will be displayed next. Select
Yes
to confirm your choice.
To switch off the Panel Key Lock, press and hold the
button on the Projector for 3
seconds.
You may also use the remote to enter
System Settings > Panel Key Lock
menu,
press
/
and select
OFF.
Buttons on the remote control can still be used even if the Panel Key Lock function has been
switched on.
If you press the
Power button to switch off the projector without switching off the Panel Key
Lock function, the projector buttons will remain locked when you switch it on the next time.