488. TroubleshootingProblem• Stripes appear on thescreen.• Sound is heard frominside the unit.• Fan isn’t moving.• Fan speed changes.• ON (green) indicatordoesn’t light.Possible Solution• May be caused by radio wave mingling from TV station, FM station, amateur radios,public radios (simplified radios) etc., or a nearby personal computer, TV, or video/audio component.• A strong electromagnetic field may cause picture distortion and similar problems.• Normal sound of the cooling fan and internal sliding parts of the plasma displaypanel. Not a malfunction.• Fan is set to operate only after ambient temperature exceeds 35°C (differsdepending on installation conditions). Not a malfunction.• Fan speed changes automatically in accordance with ambient conditions. Not amalfunction.• The ON indicator may not light in some cases, depending on the settings performedby the installer. Consult with your installation technician.About the self diagnosis modeMessages appear on the bottom of this unit’s screen to indicate operation or connection faults. After messageconfirmation, check the condition of the unit.Error messegeCAUTIONOUT OF RANGEorCAUTIONUNSUPPORTED SIGNALorSIGNAL NGWARNINGTHERMAL ALERTSHUT DOWN (**)WARNINGFAN FAILURESHUT DOWN (**)ERRORINVALID KEY ENTRYSHUT DOWN (**)Remedy• A signal not supported by the device is input.Check the “Computer signal compatibility table” and change the PC output signalsetting.• Turn off the main power of the plasma display.• Check whether the surrounding temperature is high.• If the cooling vents on the display are blocked, remove the obstacles blocking thevents.• The fan is giving trouble.• Immediately turn off the main power of the plasma display and contact the Pioneerservice center or dealer.• An invalid operation was attempted. Check the input signals, connections andsettings.• Turn off the main power of the plasma display, wait 1 or 2 minutes and turn thepower ON again. If the problem still persists, remove the power plug from the outletand contact a Pioneer service center or dealer* In the above, messages contents indicated by (**) represent numerals.