57 OthersThe remote controlunit does notoperate.The buttons on theprojector do notfunction.The picture does notdisplay correctly.Picture fromcomputer does notappear.Problem Possible cause• The batteries may be weak.• The batteries may not be inserted correctly. (Referto page 21.)• The remote control signal receptor on the projectormay be obstructed. (Refer to page 21.)• The remote control unit may be out of the operationrange. (Refer to page 21.)• The CONTROL KEY may be set to “OFF”. (Refer topage 45)In order to set the CONTROL KEY to “ON” withoutusing the remote control unit, keep holding downthe ENTER button on the projector and press theMENU button for more than 2 seconds. It will thenbe turned ON.• The signal format (TV system) may not be setcorrectly. (Refer to page 36.)• There may be a problem with the video tape orother signal source.• A signal which is not compatible with the projectormay be being input. (Refer to page 60.)• If you select SXGA60 or SXGA60+ type RGBsignals, the pictures may not be projected correctly.If this happens, press the AUTO SETUP button.• The cable may be too long.• The external video output for the laptop computermay not be set correctly.(You may be able to change the external outputsettings by pressing the [Fn]+[F3] or [Fn]+[F10]keys simultaneously. The actual method variesdepending on the type of computer, so refer to thedocumentation provided with your computer forfurther details.)• If an RGB input indicator (refer to pages 15 and 55)is turned off, the video signals may not be outputfrom the computer.• RGB2 SELECT in the OPTION menu is set toOUTPUT when the signals are input to RGB2 IN /RGB1 OUT connector. (Refer to page 43)