NEC PA622U User Manual page 110

Selecting Aspect Ratio and Position for Screen [SCREEN TYPE]
Screen type Sets the aspect ratio of the projection screen.
FREE
4:3 screen
16:9 screen
16:10 screen
NOTE:
• After changing the screen type, check the setting of [ASPECT RATIO] in the menu. (→ page 80)
Using the Wall Color Correction [WALL COLOR]
This function allows for quick adaptive color correction in applications where the screen material is not white.
NOTE: Selecting [WHITEBOARD] reduces lamp brightness.
Selecting Fan Mode [FAN MODE]
Fan Mode is used to set the speed of the internal cooling fan.
MODE �������������������� Select three modes for fan speed: AUTO, HIGH, and HIGH ALTITUDE�
AUTO: The built-in fans automatically run at a variable speed according to the internal temperature�
HIGH: The built-in fans run at high speed
HIGH ALTITUDE: The built-in fans run at a high speed� Select this option when using the projector at altitudes
approximately 5500 feet/1600 meters or higher� To use the projector with ECO MODE ON in other installed
conditions than desktop/ceiling with +/-20°, heed the following:
(1) Select [HIGH ALTITUDE] for [MODE] at altitude 3200 feet/1000 meters�
(2) Select [OFF] for [ECO MODE] at altitude 6800 feet/2100 meters or higher�
NOTE:
• Make sure the speed is set to [HIGH] when you are using this device continuously for several days.
• Set [FAN MODE] to [HIGH ALTITUDE] when using the projector at altitudes approximately 5500 feet/1600 meters or higher.
• Using the projector at altitudes approximately 5500 feet/1600 meters or higher without setting to [HIGH ALTITUDE] can cause
the projector to overheat and the protector could shut down. If this happens, wait a couple minutes and turn on the projector.
• Using the projector at altitudes less than approximately 5500 feet/1600 meters and setting to [HIGH ALTITUDE] can cause the
lamp to overcool, causing the image to flicker. Switch [FAN MODE] to [AUTO].
• Using the projector at altitudes approximately 5500 feet/1600 meters or higher can shorten the life of optical components such
as the lamp.
• Your setting will not be affected even when [RESET] is done from the menu.
TIP:
• When [HIGH ALTITUDE] is selected for [FAN MODE], a symbol icon
The ratio of the liquid crystal panel is selected. Select this when projecting
multi-screen and 17:9 screen (2K).
For a screen with a 4:3 aspect ratio
For a screen with a 16:9 aspect ratio
For a screen with a 16:10 aspect ratio
97
5. Using On-Screen Menu
will be displayed at the bottom of the menu.