InFocus ScreenPlay 4800 Projector User Manual

30
Optimizing video imagesAfter your video device is connected properly and the image is on the 
screen, you can optimize the image using the onscreen menus. For general 
information on using the menus, see page 31.
 Adjust the Keystone, Contrast, Brightness, Color, or Tint in the Picture 
menu (page 32). 
 Change the Aspect Ratio. Choose the option that best fits your input 
source (page 32).
 Select a Sharpness setting (page 34).
 Use the Color Control to adjust the color gain (page 34).
 Adjust...

31
Using the menusTo open the menus, press the Menu button on the keypad or remote. (The 
menus automatically close after 60 seconds if no buttons are pressed.) The 
Main menu appears. Use the arrow buttons to move up and down to high-
light the desired submenu, then press the Select button. 
To change a menu setting, highlight it, press Select, then use the up and 
down arrow buttons to adjust the value, select an option using radio but-
tons, or turn the feature on or off using check boxes. Press...

32
Picture menuTo adjust the following settings, highlight the setting, press Select, use the 
up and down arrows to adjust the values, then press Select to confirm the 
changes.
Key s t o n e: adjusts the image vertically and makes a squarer image. You can 
also adjust keystone from the keypad.
Contrast: controls the degree of difference between the lightest and darkest 
parts of the picture and changes the amount of black and white in the 
image.
Brightness: changes the intensity of the image.
Color:...

33
Presets: Presets present you with intensity configurations optimized for the 
input source. You can select a preset configuration that has been specifically 
tuned for either Presentation, Photography, Film, and Video (Film input is 
material originally captured on a film camera, like a movie; video input is 
material originally captured on a video camera, like a TV show or sporting 
event.) Your viewing preferences may vary. Cycle through the preset inten-
sity configurations and pick the one you...

34 Advanced menu
Sharpness: (video sources only) changes the clarity of the edges of a video 
image. Select a sharpness setting.
Color Temperature: changes the intensity of the colors. Select a listed rela-
tive warmth value. 
Color Control: allows you to individually adjust the gain for the red, green, 
and blue colors.
Video Standard: when it is set to Auto, the projector attempts to automati-
cally pick the video standard based on the input signal it receives. (The 
video standard options may vary...

35
Settings menuAudio: allows adjustments to Volume of the internal speaker. Adjustments 
can also be made from the projector ’s keypad.
Sources: when the Auto Source feature is on, the Source Enable feature 
indicates which sources the projector attempts to lock onto.You can use the 
Source Enable feature to eliminate certain sources from this search, which 
will speed the search. By default, the check boxes for all sources are 
checked. Uncheck a source’s box to eliminate it from the search.
System:...

36
Startup Logo: allows you to display a blank screen instead of the default 
screen at startup, and when no source is detected. 
Blank Screen: determines what color is displayed when you press the 
Blank button on the remote.
Language: allows you to select a language for the onscreen display.
Service: To use these features, highlight them and press Select.
Factory Reset: restores all settings to their default.
Service Code: only used by authorized service personnel.
About: provides information about the...

37
MaintenanceCleaning the Lens1
Apply a non-abrasive camera lens cleaner to a soft, dry cloth.
 Avoid using an excessive amount of cleaner, and don’t apply the 
cleaner directly to the lens. Abrasive cleaners, solvents or other harsh 
chemicals might scratch the lens.
2
Lightly wipe the cleaning cloth over the lens in a circular motion. If you 
don’t intend to use the projector immediately, replace the lens cap.
Replacing the Projection LampThe lamp hours used timer in the About menu counts the number...

38 4
Loosen the two captive screws that attach the lamp housing to the pro-
jector.
5
Detach the lamp connector from the projector by depressing the locking 
tab on the connector and lightly pulling it free.
WA R N I N G:
To avoid burns, allow the projector to cool for at least 30 minutes 
before you replace the lamp.
Do not drop the lamp housing or touch the glass bulb! The glass 
may shatter and cause injury.
Be extremely careful when removing the lamp housing. In the 
unlikely event that the bulb...

39
Cleaning the Lamp Housing ScreensIn dirty or dusty environments, the two dust filter screens in the lamp hous-
ing can become clogged, causing high temperatures and premature lamp 
failure. Routine maintenance to remove dust from the screens lowers the 
lamp operating temperature and prolongs lamp life. To maximize lamp life 
you should clean the screen every 250 hours. 1
Remove the lamp housing. 
2
Examine the dust filter screens on the lamp housing. If necessary, use a 
vacuum cleaner set on low...