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should switch to Ye s to solve these symptoms. However, this is not to state that this projector can operate
under any and all harsh and extreme environments.
5. Black level: The grayscale video signal is measured in IRE units. In some areas which use NTSC TV standard,
the grayscale is measured from 7.5 IRE (black) to 100 IRE (white); however, in other areas which use PAL
equipment or Japanese NTSC standard, the grayscale is measured from 0 IRE (black) to 100 IRE (white). We
suggest that you check the input source if it is with O IRE or 7.5 IRE, then select accordingly.
6. Pattern: It will be displayed with the aspect ratio setting made using the Aspect Ratio function of the
DISPLAY menu. Use this pattern when installing the projector, even if there is no input signal. Use it to
adjust the image size and the focus.
7. Lamp
Q Lamp Power: Sets Full or Economic as the power type of your projection.
Q Lamp Hours: Shows the total time of the lamp has been used.
Q Reset Lamp Timer: Resets the lamp timer. This should only be done after the lamp has been replaced.
8. Dust Filter
Q Dust Filter Hours: Shows the total time of the filter has been used.
Q Rest Dust Filter Timer: Reset the dust filter timer. This should only be done after the filter has been
replaced.
Advanced menu
1. White Balance Fine Tuning: Adjusts the white color.
Q Color Temp. Info. : shows the current color temperature.
*About color temperatures:
There are many different shades that are considered to be “white” for various purposes. One of the
common methods of representing white color is known as the “color temperature”. A white color with a
low color temperature appears to be reddish white. A white color with a high color temperature appears to
have more blue in it.
Q RGB Gain... --- Adjusts the contrast levels of Red, Green, and Blue.
Q RGB Offset... --- Adjusts the brightness levels of Red, Green, and Blue.
To store Color Temperature to User 1 and 2:
i.) Open the Advanced menu and select White Balance Fine Tuning > RGB Gain, press ENTER.
ii.) Press c or d to select the item to be changed and adjust the value with e or f button.
iii.) Press EXIT to leave and save the settings.
iv.) Repeat steps ii and iii to set RGB Offset values.
v.) Select and enter “Store Color Temperature to User 1” or “Store Color Temperature to User 2” to save
the settings which are made above.
vi.) Press EXIT to leave and save the settings.
To make the color temperature higher
Set the value of Blue Gain greater, and the value of Red Gain smaller.
To make the color temperature lower
Set the value of Red Gain greater, and the value of Blue Gain smaller.
PE7700-e.book Page 28 Monday, January 10, 2005 11:20 AM