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Additional information
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Lamp information
Getting to know the lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is
automatically calculated by the built-in timer. The method of calculating the
equivalent lamp hour is as follows:
Equivalent lamp hour
= 1 (hours used in Whisper mode) + 3/2 (hours used in Normal mode)
See "Setting Lamp Power as Whisper" below for more information on
Whisper mode.
To obtain the lamp hour information:
1. Press MENU and then press / until the Advanced Setup menu is
highlighted.
2. Press to highlight Lamp and press ENTER. The Lamp page displays.
3. Highlight Lamp Hours and press ENTER to display the Lamp Hours
information page.
4. To leave the menu, press MENU.
About Lamp Rest Rate:
Lamp Rest Rate shows the percentage of the lamp rest life. The method of
calculating the rate is as follows:
Rest Rate = [1 - (Total Lamp Hours /3000)] x 100%
Extending lamp life
The projection lamp is a consumable item that normally can last up to 2000-
3000 hours with proper usage. To keep the lamp life as long as possible, you
can do the following settings via the OSD menu.
• Setting Lamp Power as Whisper
Using Whisper mode reduces system noise and power consumption. If the
Whisper mode is selected, the light output will be reduced and result in darker
projected pictures.
Setting the projector in Whisper mode also extends the lamp life. To set
Whisper mode, go into the Advanced Setup > Lamp > Lamp Power menu and press / .
•Setting Auto Off
This function allows the projector to turn off automatically if no input source is detected after a set period of
time.
To set Auto Off, go into the System Setup > Auto Off menu and press / to select a time period. The time
period can be set from 5 to 30 minutes in 5-minute increments. If the preset time lengths are not suitable for your
presentation, select Disable. The projector will not automatically shut down in a certain time period.
Lamp
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Lamp
Lamp Power
Lamp Hours
ENTER
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Reset Lamp Timer
Lamp Hours
Lamp Hours Nor.
Lamp Hours Eco.
Lamp Rest Rate
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100hr
150hr
90%
Whisper
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W20000-en.book Page 43 Monday, October 22, 2007 3:35 PM