Panasonic TH-98LQ70U Operating Instructions Manual

Also see for TH-84LQ70U: Operating instructions

Panasonic TH-98LQ70U Operating Instructions Manual Manual pdf 76 page image

English76TroubleshootingBefore 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 power switch or stand-by button onthe 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 SoundColour controls set at minimum level (see page 36, 37)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 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 59)Check whether [Controller ID function] in [Options] menu isset to [On]. (see page 59)Check whether switch is set to . (seepage 70)[Controller ID function] function cannot be used.Check whether [Controller ID function] is set to [On], or MODE> switch is set to . (see page 59)(When [Controller ID function] is set to [On], you need to set switch to and set the ID number.)The top or bottom of the picture on the screen iscut off.Adjust the position of the picture on the screen.(see page 33, 34)There are areas at the top and bottom of thescreen where picture is not displayed.When using a video software program (such as a cinemasize program) with a screen wider than one in the 16:9mode, blank areas separate from the images are formed atthe top and bottom of the screen.(see page 29)Parts of the unit become hot.Even when the temperature of parts of the front, top andrear panels has risen, these temperature rises will not poseany problems in terms of performance or quality.