User Manual

37 Maintenance
2. Equivalent Lamp Hour = hours
, if
X = lamp life spec of Normal mode
Y = lamp life spec of Eco mode
Z = lamp life spec of SmartEco mode
A’ is the longest lamp life spec among X, Y, Z
To obtain the lamp hour information:
1. Go to SYSTEM SETUP: ADVANCED Menu > Lamp Settings and press OK. The Lamp
Settings page appears.
2. Press to select Lamp Timer and press OK. The Lamp Timer information is displayed.
You can also get the lamp hour information on the INFORMATION menu.
Extending lamp life
• Setting the Light Mode
Go to PICTURE Menu > Advanced > Light Mode and select a suitable lamp power from among
the provided modes.
Setting the projector in Economic or SmartEco mode extends lamp life.
• Setting Auto Off
This function allows the projector to turn off automatically if no input signal is detected after a set
period of time to prevent unnecessary waste of lamp life.
To set Auto Off, go to SYSTEM SETUP: BASIC Menu > Auto Off and press / .
Timing of replacing the lamp
When the Lamp indicator lights up or a message appears suggesting it is time to replace the lamp,
please consult your dealer or go to http://www.BenQ.com before installing a new lamp. An old lamp
may cause a malfunction in the projector and in some instances the lamp may explode.
For Time used in each lamp mode shown in OSD menu:
- Time used is accumulated and rounded down to an integer in Hours
.
- When time used is less than 1 hour, it shows 0 hours.
When you calculate Equivalent Lamp hour manually, it will probably have deviation from the value shown in OSD
menu since projector system calculates Time used for each lamp mode in "Minutes
" then rounds down to an integer
in hours shown in OSD.
Lamp mode Description
Normal Provides full lamp brightness
Economic Lowers brightness to extend the lamp life and decreases the fan noise
SmartEco
Adjusts the lamp power automatically depending on the content brightness level while
optimizing display quality
• The apparent brightness of the projected image will vary depending on the ambient lighting conditions, selected
input signal contrast/brightness settings, and is directly proportional to projection distance.
• The lamp brightness will decline over time and may vary within the lamp manufacturers specifications. This is
normal and expected behavior.
• The LAMP indicator light and TEMPerature warning light will light up if the lamp becomes too hot. Turn
the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator still lights up after turning
the power back on, please contact your dealer. See Indicators on page 41.
ө
өːʳʳʳʳʳʳx X+ xY+ xZʳʳ
A’
X
A’
A’
Y Z