40 Maintenance
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:
1. Lamp Usage Time = (x+y+z) hours, if
Time used in
Normal
mode = x hours
Time used in
Economic
mode = y hours
Time used in
SmartEco
mode = z hours
2. Equivalent Lamp Hour = hours
, if
X= lamp life spec of
Normal
mode
Y= lamp life spec of
Economic
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
>
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
>
Advanced
>
Light Mode
and press / or press
LIGHT MODE
on the
remote control to 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
>
Auto Off
and press / .
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
D
D
A
'
X
----
F
u
A
'
Y
----
y
u
A
'
Z
----
z
u
+
+
=
