User Manual

84 Maintenance
Time used in LampSave mode = a hours
2. Equivalent light source hour = α hours
α = x(A’ / X) + y(A’/Y) + z(A’/Z) + a(A’/A), if
X= lamp life spec of Normal mode
Y= lamp life spec of Economic 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 - Settings > Light Settings > Light Mode and select a suitable lamp
power from among the provided modes.
Setting the projector in Economic, SmartEco or LampSave mode extends lamp life.
• Setting Auto Power 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 s e t Auto Power Off, go to Advanced Menu - Settings > Operation Settings > Power
On/Off Settings > Auto Power Off and press / .
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.
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
LampSave
Adjusts the lamp power automatically depending on the content brightness level while
offering a longer lamp life