Chapter 4 Settings — [PROJECTOR SETUP] menuENGLISH - 111[LAMP POWER]Switch the brightness of the lamp according to the operating environment of the projector or the purpose.1) Press as to select [LAMP POWER].2) Press qw to switch the item.[NORMAL] Select when high luminance is required.[ECO] Select when high luminance is not required.Notef When [ECO] is set, you can reduce power consumption and operation noise, and extend the life of the lamp.[BRIGHTNESS CONTROL]The projector is equipped with a luminance sensor to measure brightness and functions to correct screen brightness resulting from changes inlamp brightness.Use the projector when using multiple projectors to display on multiple screens to reduce changes in overall brightness of the multiple screensdue to lamp degradation and suppress variation in brightness to preserve uniformity.Setting [BRIGHTNESS CONTROL GAIN]Adjust the brightness when displaying multiple screens using multiple projectors.1) Press as to select [BRIGHTNESS CONTROL].2) Press the button.f The [BRIGHTNESS CONTROL] screen is displayed.3) Press as to select [BRIGHTNESS CONTROL GAIN].4) Press qw to adjust.OperationAdjustmentRange of adjustmentBrightness Maximum amount ofbrightness correctionPress the w button. The screen becomes brighter. The maximum amount ofcorrection is reduced. 20 % - 100 %Press the q button. The screen becomes darker. The maximum amount ofcorrection is increased.Notef When using only one projector, the value obtained by subtracting the value of the [BRIGHTNESS CONTROL GAIN] from 100 % is themaximum amount of brightness correction. Brightness cannot be corrected through brightness control since the maximum amount ofcorrection becomes 0 % when [BRIGHTNESS CONTROL GAIN] is at 100 %.f Luminance will be unsteady for eight minutes after a lamp is turned on. Make adjustments at least 8 minutes after starting projection.f The result of [BRIGHTNESS CONTROL GAIN] adjustments is reflected on all image signals, internal test patterns, and on-screen menus.f The [BRIGHTNESS CONTROL GAIN] setting is enabled even if [BRIGHTNESS CONTROL SETUP] is [OFF].