-6-Circuit ProtectionsMechanical sensor switches (SW902, SW6581)Filter cartridge sensorswitch (SW6581)Lamp cover sensorswitch (SW902)Filter cartridgeThis projector provides 2 mechanical sensor switches, the one is for filter cartridge sensor switch (SW6581) and theother one is for lamp cover sensor switch (SW902). The filter cartridge sensor switch detects whether the filter car-tridge is installed correctly. If the filter cartridge is not installed correctly, the projector cannot turn on.The lamp cover sensor switch detects whether the lamp cover is closed securely. If lamp cover is opened or notclosed completely, the drive signal to the lamp circuit is cut off. After opening the lamp cover for replacing the lampass’y, place the lamp cover correctly otherwise the projector cannot turn on.cAutIoNDO NOT LEAVE THE PROJECTOR WITH THE AC POWER CORDCONNECTED UNDER AN ABNORMAL CONDITION. IT MAY RE-SULT IN FIRE OR ELECTRIC SHOCK.IndicatorsThe projector is shut down; and the LAMP indicator is lightingand other indicators are blinking.When the projector detects an abnormal condition (SW902, SW903, SW904- opens, or SW6581 - opens), it will be automatically shut down to protect theinside of the projector and the LAMP indicator lights on and other indicatorsblink. In this case, unplug the AC power cord and check that the filter car-tridge and lamp cover are installed securely, and the plug it, and turn on theprojector once again to verify operation. If the projector cannot be turned onand these indicators are still lighting and blinking, unplug the AC power cord.See the troubleshooting chapter.LAMP indicator lights onand other indicators blink.
