66Option settingsLamp selectTwo internal lamps in the projector can be used eitherin “DUAL” or “SINGLE” mode depending on user'sneeds or viewing conditions.In the “SINGLE” mode, the projector may automaticallyswitches between one lamp and the other, or one ofthe lamps can be specified.“LAMP 1”: One lamp illuminates.(Lamp Unit 1 is always used)“LAMP 2”: One lamp illuminates.(Lamp Unit 2 is always used)“SINGLE”: One of the lamps illuminates.(The lamp with shorter operating hours isautomatically selected)“DUAL”: Two lamps illuminate.Lamp powerThe luminance of the projection lamp can be changeddepending on user's needs or the viewing conditions.“LOW”: Set when high brightness is not necessary.“HIGH”: Set when high brightness is necessary.NoteLAMP SELECTDUALSINGLELAMP1LAMP2LAMP POWER LOWHIGHNote• When set to “LOW”, it is possible toreduce power consumption, reduceoperating noise and extend lampservice life.• “LOW” is set automatically when LongLife Lamp Units are used.• If any of “SINGLE”, “LAMP 1” and “LAMP 2” hasbeen selected, when a currently lit lamp expires, oris turned off due to the elapsed time of lamplighting exceeding 1500 hours (with the lampoutput set at “HIGH”), the other lamp will be turnedon.If “DUAL” has been selected, when either of thetwo lamps expires, or is turned off due to theelapsed time of lamp lighting exceeding 1500hours, the other lamp with elapsed time notexceeding 1500 hours continues lighting.Further, if the elapsed time exceeds 1500 hoursfor both lamps, the projector will enter a standbystate.• If only one lamp is mounted, select “LAMP 1” or“LAMP 2” according to the relevant lamp unit.In “LAMP 1” or “LAMP 2” mode, if thecorresponding lamp is not installed, the other lampwill turn on.• If the lamp selection is changed, picture is mutedduring lamp switching execution. (7-25sec.)This time period is 4 000 hours when Long LifeLamp Units (page 98) are used.
