37
Maintenance
Light source information
Getting to know the light source hour
When the projector is in operation, the duration (in hours) of light source usage is automatically
calculated by the built-in timer. The method of calculating the equivalent light source hour is as follows:
Light Source Usage Time = (hours used in
Normal
mode) + (hours used in
Economic
mode) +
(hours used in
SmartEco
mode)
Total (equivalent) light source hour = 1.0 x (hours used in
Normal
mode) + 1.0 x (hours used in
Economic
mode) + 1.0 x (hours used in
SmartEco
mode)
To obtain the light source hour information:
Go to
SYSTEM SETUP: ADVANCED
>
Light Source Settings
>
Light Source Timer
and
press
OK
. The
Light Usage Time
information is displayed.
You can also get the light source hour information on the
INFORMATION
>
Light Usage Time
menu.
Extending light source life
• Setting the
Light Mode
Go to
PICTURE
>
Advanced
>
Light Mode
and press
OK
. Select a suitable light source power
from among the provided modes.
Setting the projector in
Economic
or
SmartEco
mode extends light source 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 light source life.
To set
Auto Off
, go to
SYSTEM SETUP: BASIC
>
Auto Off
and press / .
For time used in each light source 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 Light source hour manually, it will probably have deviation from the value shown in
OSD menu since projector system calculates time used for each light source mode in “Minutes” then rounds down
to an integer in hours shown in OSD.
Light Mode
Description
Normal
Provides full light source brightness
Economic
Lowers brightness to extend the light source life and decreases the fan noise
SmartEco
Adjusts the light source power automatically depending on the content brightness level
