97EnglishTroubleshootingBefore you call for service, determine the symptoms and make a few simple checks as shown below.Symptoms CheckPicture Sound Electrical AppliancesCars / MotorcyclesFluorescent lightInterference Noisy SoundNormalPicture No SoundVolume(Check whether the mute function has been activated on theremote control.)No Picture No SoundNot plugged into AC outletNot switched onPicture and Brightness/Volume setting(Check by pressing the orstand-by button on the remote control.)No Picture Normal SoundIf a signal with a non-applicable colour system format,or frequency is input, only the input terminal indication isdisplayed.No Colour Normal Sound Colour controls set at minimum level (see page 37, 39)Power automatically turns off unexpectedly.Check the settings of [No signal power off], [HDMI1 powermanagement], [HDMI2 power management], [DIGITAL LINKpower management]*, [DVI-D power management], [PCpower management] and [No activity power off]. Any of themmay be set to [On (Enable)]. (see page 47)*: LF80 series onlyPower indicator is blinking in red. There is possibility of malfunction. Please contact anAuthorized Service Centre.No remote control operations can be performed.Check whether the batteries have discharged completelyand, if they have not, whether they were inserted properly.Check whether the remote control sensor is exposed to anoutdoor light or a strong fluorescent light.Check whether any obstacle is present between the remotecontrol sensor and the remote control.If the installa ion condi ion is normal, pull out he remotecontrol sensor from the edge side of the main unit whenusing.Check whether the remote control designed specificallyfor use with the unit is being used. (The unit cannot beoperated by any other remote control.)Check whether the option other than [Off] is selected in[Controller user level] in the [Options] menu. (see page 64)Check whether [Controller ID function] in [Options] menu isset to [On]. (see page 65)Check whether switch is set to . (Whenusing ID remote controller) (see page 90)[Controller ID function] function cannot be used.(When using ID remote controller)Check whether [Controller ID function] is set to [On], or MODE> switch is set to . (see page 65)(When [Controller ID function] is set to [On], you need to set switch to and set the ID number.)
