-5-This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the pro-jector, it will automatically turn off by operating one of the following protection circuits.Circuit ProtectionsFuseA fuse is located inside of the projector. When the POWERindicator is not lightning, the fuse may be opened. Checkthe fuse as following steps.The fuse should be used with the following type;Fuse Part No. : 323 027 2605tYPe t10AH 250VLItteL FuSe INc. tYPe 215010How to replace the fuse1. Turn the projector up and down.. Loosen a screw on the fuse cover and open it.3. Remove the fuse from fuse holder on the AC filter board.to install the fuse, take reversed step in the above.FuseScrewThermal protector(SW901)Thermal protectors (SW901, SW902)There are the thermal protectors (SW901, SW90) inside ofthe projector to detect the internal temperature rising abnor-mally. When the internal temperature reaches near 100˚C,the thermal protector cuts off the current supplied to thepower supply circuit.To reset the thermal protection function, disconnect the ACcord and leave the projector at the normal surrounding tem-perature for about 45 minutes. The thermal protectors willautomatically reset when the internal temperature becomesnormal (around 60˚C) .Thermal protector(SW90)