68Before calling for serviceBefore calling for service, check the following points.Problem Possible causePower does not turnon.No picture appears.The picture is fuzzy.COLOR is too light orTINT is poor.No sound can beheard.B The power cord may not be connected.B The MAIN POWER switch is turned off.B The main power supply is not being supplied to the walloutlet.B TEMP indicator is illuminated or flashing. (Refer to page60.)B LAMP indicator is illuminated or flashing. (Refer to page61.)B The lamp unit cover has not been securely installed.B The video signal input source may not be connectedproperly.B The input selection setting may not be correct. (Refer topage 30.)B The BRIGHT adjustment setting may be at the minimumpossible setting. (Refer to page 39.)B The shutter function may be in use. (Refer to page 46.)B The lens cover may still be attached to the lens.B The lens focus may not have been set correctly. (Referto pages 31 and 50.)B The projector may not be at the correct distance from thescreen. (Refer to pages 29 and 52.)B The lens may be dirty.B The projector may be tilted too much. (Refer to page 28.)B COLOR or TINT adjustment may be incorrect. (Refer topage 39.)B The input source which is connected to the projectormay not be adjusted correctly.B The audio signal source may not be connected properly.B The volume adjustment may be at the lowest possiblesetting. (Refer to pages 17 and 45.)B A cable may be connected to the AUDIO OUT jack.B The MUTE function may be active (page 45.)
