Sanyo PLC-XC50 Service Manual

Also see for PLC-XC55: Brochure Owner's manual Manual Manual Specification sheet

Contents

-6-Circuit ProtectionsThe projector will be automatically turned off when the internal temperature of the projector is abnormally high, or thecooling fans stop spinning, or the power supplies in the projector are failed.- If the WARNING TEMP. indicator is flashing, it may detect the abnormal temperature inside the projector. Checkthe following possible causes and wait until the WARNING TEMP. indicator stops flashing, and then try to turn onthe projector.- If the WARNING TEMP. indicator lights red, it may defect the cooling fans or power supply circuits. Check fansoperation and power supply lines referring to the chapter “Power supply & protection circuit” in the Chassis BlockDiagram section.Possible causes- This projector has an electrically operated filter which helps you to replace the filter easily. The projector monitorsthe condition of the filter at all time and replaces a filter with a new one automatically hen it detects the clogging. ifthe projector reaches a time set in the timer, please replace the filter by following instructions in the “Replace theFilter Cartridge” below.- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots arenot obstructed.- Check if projector is used at higher temperature place (Normal operating temperature is 5 to 35 ˚C or 41 to 95˚F)The projector is shut down and the WARNINGTEMP. indicator emits a red light .When the projector detects an abnormal condition, it isautomatically shut down to protect the inside and theWARNING TEMP. indicator becomes red. In this case,disconnect the AC power cord and reconnect it, and thenturn the projector on once again for check. If the projectorcannot be turned on and the WARNING TEMP. indicatorstill emits a red light it may detect the failure of cooling fansor power supply circuits.CAUTIONDO NOT LEAVE THE PROJECTOR WITH THEAC POWER CORD CONNECTED UNDER AN AB-NORMAL CONDITION. IT MAY RESULT IN FIREOR ELECTRIC SHOCK.Top ControlWARNINGlights redWarning temperature and power failure protectionFuseA fuse(F601) is located inside of the projector. When the POWERindicator is not lightning, the fuse may be opened. Check the fuseas following steps.The fuse should be used with the following type;Fuse Part No.: 323 021 7804TYPE 6.3AH 250V FUSELITTLE FUSE INC. TYPE 21506.3How to replace the fuse1. The fuse is placed on the filter board. Remove the cabinet topand main board and AC Assembly following to the "MechanicalDisassemblies".. Take the fuse off from fuse holder on the Filter board and replacethe new one with the specified type.To install the fuse, take reversed steps above.FuseAC Assembly