Sanyo PLC-XF20 Owner's Manual

Also see for XF20 - PLC XGA LCD Projector: Specifications Instruction manual Service manual

43APPENDIXMAINTENANCETEMPERATURE WARNING INDICATORThe TEMPERATURE WARNING Indicator flashes red when the internal temperature of the projector exceedsthe normal temperature. The Indicator stops flashing when the temperature of the projector returns to normal.When the TEMPERATURE WARNING Indicator continues to flash, check the items listed below.The Ventilation slots of the projector may be blocked. In such an event, reposition the appliance so that the ventilationslots are not obstructed.AIR FILTER CARE AND CLEANINGAir filters may be clogged with dust particles. Clean the air filters by following the section AIR FILTER CARE ANDCLEANING below.12If the TEMPERATURE WARNING Indicator remains on after performing the above checks, the Cooling Fans or theInternal Circuits may be malfunctioning. Contact service a personnel from an authorized dealer or service station.3Turn the power off, and disconnect the AC power cord from theAC outlet.12The Removable Air Filter prevents dust from accumulating on the surface of the Projection Lens and theProjection Mirror. Should the Air Filter become clogged with dust particles, it will reduce the Cooling Fans'effectiveness and may result in internal heat build up and adversely affect the life of the projector.Clean the Air Filter following the steps below:34CAUTIONDo not operate the projector with the Air Filter removed.Dust may accumulate on the LCD Panel and the Mirrordegrading picture quality.Do not put small parts into the Air Intake Vents. It mayresult in malfunction of the projector.RECOMMENDATIONWe recommend avoiding dusty/smoky environments whenoperating the projector. Usage in these environments maycause poor image quality.When using under dusty or smoky conditions, dust may accumulateon the liquid crystal panel, lens, or optical elements inside it. Thiscondition may degrade the quality of the projected image.When the above symptoms are noticed, contact your authorizeddealer or service station for proper cleaning.Pull out the air filter from the projector.Pulling up the center frame of the air filter top, separate the airfilter top and sponge from the air filter base.Clean the each parts with brush or wash out the dust andparticles. Be sure to dry them out.Assemble the sponge and the air filter and replace the air filter tothe projector.5AIR FILTERAIR FILTERTOPAIR FILTERBASE SPONGE