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Maintenance
Light source information
Getting to know the light 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 hour is as follows:
1. Light Usage Time = (x+y1+y2+z) hours, if
Time used in
Normal
mode = x hours
Time used in
ECO 1
mode = y1 hours
Time used in
ECO 2
mode = y2 hours
Time used in
SmartEco
mode = z hours
2. Equivalent Light Hour = hours
, if
X= light source life spec of
Normal
mode
Y1= light source spec of
ECO 1
mode (
Bright
mode)
Y2= light source spec of
ECO 2
mode (Other modes)
Z= light source spec of
SmartEco
mode
A’ is the longest light life spec among X, Y1, Y2, Z.
To obtain the light source information:
Go to
Advanced Menu - System
>
Light Source Information
and press
OK
. The
Light Source
Information
page appears.
You can also get the light hour information on the
Information
menu.
Extending light source life
• Setting the
Light Source Mode
Go to
Advanced Menu - Picture
>
Advanced Color Settings
>
Light Source Mode
and press
/ to select a suitable light source power from among the provided modes.
Setting the projector in
ECO
, or
SmartEco
mode extends light life.
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 Hours
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 Source
Mode
Descriptions
Normal
Provides full light brightness
ECO
Lowers brightness to extend the light life and decreases the fan noise
SmartEco
Adjusts the light power automatically depending on the content brightness level while
optimizing display quality.
A
'
X
----
A
'
Y1
------
y1
A
'
Y2
------
y2
+
A
'
Z
----
z
+
+
=
