-5-FuseA fuse is located inside of the projector. When the POWER indicatoris not lighting, the fuse may be opened. Check the fuse as followingsteps.The fuse should be used with the following type;Fuse Part No.: 323 025 1204tYPE 8A 250V FUSELIttLE FUSE INC. tYPE 21500.8How to replace the fuse1. The fuse is placed on the filter board under the main board. Re-move the cabinet top and main board.. Take the fuse off, and replace the new one with the specified type.Lamp cover switchThe lamp cover switch (SW901) cuts off the drive signal to the lampcircuit when the lamp cover is removed or not closed completely.After opening the lamp cover for replacing the lamp ass’y, place thelamp cover correctly otherwise the projector can not turn on.thermal switchThere is the thermal switch (SW90) inside of the projector to detectthe internal temperature rising abnormally. When the internal tem-perature reaches near 100˚C, the thermal switch opens to stop theoperation of the power supply circuit.The thermal switch cannot be reset itself automatically even if theinternal temperature becomes normal. Reset the thermal switch fol-lowing to the below procedure.How to reset the thermal switch1. Insert the sharp tool like a screwdriver into a hole on the cabinetfrom the cabinet bottom.. Press the reset button on the thermal switch with the screwdriver.CAUtIoN:Before press the reset button, make sure that the AC cord must bedisconnected from the AC outlet.This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projec-tor, it will automatically turn off by operating one of the following protection circuits.Thermal switch (SW90)FuseCircuit ProtectionsLamp cover switch(SW901)