BenQ MX766, MW767, MX822ST Lamp information, Getting to know the lamp hour, Extending lamp life

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:

Total (equivalent) lamp hour

= 1 (hours used in Economic mode) + 4/3 (hours used in normal mode)

See "Setting Lamp Mode eco function as Economic or SmartEco mode" below for more information on Economic mode.

The lamp hour in Economic mode is calculated as 3/4 of that in Normal mode. That is, using the projector in Economic mode helps to extend the lamp hour by 1/3.

To obtain the lamp hour information:

1.Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.

2.Press to highlight Lamp Settings and press MODE/ENTER. The Lamp Settings page displays.

3.You will see the Equivalent lamp information displaying on the menu.

4.To leave the menu, press MENU/EXIT.

You can also get the lamp hour information on the INFORMATION menu.

Extending lamp life

The projection lamp is a consumable item. To keep the lamp life as long as possible, you can do the following settings via the OSD menu or remote control.

Setting Lamp Mode eco function as Economic or SmartEco mode

Using Economic /SmartEco mode will reduces system noise and power consumption. If theEconomic/SmartEco mode is selected, the light output will be reduced and result in

darker projectedpictures, the projector protected for longer working life.

Setting the projector in Economic/SmartEco mode also extends the lamp operation life. To setEconomic/SmartEco mode, go into the SYSTEM SETUP: Advanced > Lamp Settings > Lamp Mode menu and press /. .

The lamp modes are defined as the chart below.

Lamp Mode	Description
Normal	100% lamp brightness.
Economic	Saves 20% lamp power consumption.
SmartEco	Saves up to 70% lamp power consumption depending on the content
	brightness level.

Setting Auto Power Off

This function allows the projector to turn off automatically if no input source is detected after a set period of time to prevent unnecessary waste of lamp life.

To set Auto Power Off, go into the SYSTEM SETUP: Basic > Operation Settings >Auto Power Off menu and press /. The time period can be set from 5 to 30 minutes in 5-minute increments. If the preset time lengths are not suitable for your

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