Problem SolutionThere is no light from the projector v Check that the power cable is securely connected.v Ensure the power source is good by testing with another electricaldevice.v Restart the projector in the correct order and check that the PowerLED is green.v If you have replaced the lamp recently, try resetting the lampconnections. Make sure the lamp cover is flush with the projectorcase when closed.v Replace the lamp module. See “Replacing the projector lamp” onpage A-1.v Put the old lamp back in the projector and have the projectorserviced.The lamp goes off. v Power surges can cause the lamp to turn off. Press the Power buttontwice to turn off the projector. When the Lamp Ready LED is on,press the Power button.v Replace with a new lamp module. See “Replacing the projectorlamp” on page A-1.v Put the old lamp back in the projector and have the projectorserviced.The projector does not respond to theremote control. v Direct the remote control towards the front or rear remote sensorson the projector.v Ensure the path between remote and sensor is not obstructed.v Turn off any fluorescent lights in the room.v Check the battery polarity.v Replace the batteries.v Turn off other Infrared-enabled devices in the vicinity.v Have the remote control serviced.There is no sound. v Adjust the volume on the remote control. See “Adjusting thevolume” on page 2-5.v Adjust the volume of the audio source.v Check the audio cable connection.v Test the source audio output with other speakers.v Have the projector serviced.The sound is distorted. v Check the audio cable connection.v Test the source audio output with other speakers.v Have the projector serviced.Projector LEDsThe LEDs on top of the projector indicates the state of the projector and can help you troubleshoot.LEDStatus/# ofFlashes DescriptionReady Flashing Lamp not ready - do not press the power button1 Blower fan error2 Optical fan error3 Lamp, ballast, power or internal fan errorB-2 Lenovo C500 Projector User’s GuideDownloaded From projector-manual.com Lenovo Manuals