Maintenance 46
Light Source Usage Time = (hours used in Normal mode) + (hours used in ECO 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 ECO mode) + 1.0 x (hours used in SmartEco mode)
To obtain the light source hour information:
Go to System > Light Source Information and press OK. The Light Source Usage Time
information is displayed.
You can also get the light source hour information on the Information > Light Source
Usage Time menu.
Extending light source life
• Setting the Light Source Mode
Go to Picture > Advanced Color Setting > Light Source Mode and press OK. Select a
suitable light source power from among the provided modes.
Setting the projector in ECO 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 > Operation Settings > Power On/Off Settings > Auto
Power Off and press / .
Indicator
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 Source
Mode
Description
Normal Provides full light source brightness
ECO 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
Light
Status & Description
POWER indicator (lights up constantly or
flashes repeatedly)
Power events
Stand-by mode
Powering up
Normal operation
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