60This function provides the following options in the coolingfans’ operation when the projector is turned off (p.23).L1 ...... Normal operationL ...... Slower and lower-sound than the normal operation(L1), but it takes more time to cool the projectordown.FanSettingFan control0º90º180 º40º50º140º50º40ºFan Control SettingChoose the running speed of cooling fans from the followingoptions according to the ground elevation under which youuse the projector.Off.......Normal speed. Set this function to Off when usingthe projector in non-high altitude environment.On 1... Faster than Off mode. Select this mode when usingthe projector in high altitudes (about 1,200 metersor more above the sea level) where the fans haveless cooling effect.On ....Faster than On 1 mode. Select this mode whenusing the projector in higher altitudes than abovewhere the fans have lesser cooling effect.On 3....Be sure to set the Lamp control in High and theFan control in On 3 when using the projectorinclined at between +40 degrees to +140 degreesto the horizontal plane at altitudes between 0 andapproximately 1,600 meters above sea level.Note:• The fan noise becomes louder in On1, On and On3.• Setting Fan control to On1, On or On3 affects Loperation in Fan.This function is used to display the cumulative lampoperating time and reset the lamp counter.When the total lighting time of a lamp exceeds therecommended total hours of use, the Lamp replacementicon (Fig.1) will appear on the screen, indicating that the endof lamp life is reached.When replacing the projection lamp, reset lamp counter.See "Resetting the Lamp Counter" on page 67.Lamp counterThis icon appears on the screen when the end oflamp life is reached.Fig 1 Lamp replacement iconNote:At turning on, the icon (Fig.1) will appear.Note:The Lamp replacement icon (Fig.1) will not appear whenthe Display function is set to Off (p.51), during “Freeze”(p.29) or “No show” (p.30).