56 Maintenance
2. Equivalent light source 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 = lamp life spec of
LampSave
mode
A’ is the longest lamp life spec among X, Y, Z, A
To obtain the lamp hour information:
1. Go to
Advanced
Menu -
Settings
>
Light Settings
and press
OK
. The
Light Settings
page
appears.
2. Press
to select
Light Usage Time
and press
OK
. The
Light Usage Time
information is
displayed.
You can also get the lamp hour information on the
INFORMATION
menu.
Extending lamp life
• Setting the
Light Mode
Go to
Advanced
Menu -
Picture
>
Light Source Mode
and select a suitable lamp power from
among the provided modes.
Setting the projector in
ECO
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
Advanced
Menu -
Settings
>
Operation Settings
>
Auto Power 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.
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.
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
ECO
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
LampSave
Adjusts the lamp power automatically depending on the content brightness level while
offering a longer lamp life
ө
α=
ġ
x
(A’/X) +
y
(A’/Y) +
z
(A’/Z) +
a
(A’/A)
ġġ
