Panasonic TH-42PF30W Operating Instructions Manual

Contents

Panasonic TH-42PF30W Operating Instructions Manual Manual pdf 65 page image

65TroubleshootingBefore you call for service, determine the symptoms and make a few simple checks as shown below.Symptoms ChecksPicture SoundInterference Noisy SoundElectrical AppliancesCars / MotorcyclesFluorescent lightNormal Picture No SoundVolume(Check whether the mute function has been activated on the remote 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 on the remote control.)No Picture Normal SoundIf a signal with a non-applicable colour system format, or frequency is input, onlythe input terminal indication is displayed.No Colour Normal SoundColour controls set at minimum level (see page 28, 29)Colour system (see page 49)No remote control operations can be performed. Check whether the batteries have discharged completely and, if they have not,whether they were inserted properly.Check whether the remote control sensor is exposed to an outdoor light or astrong uorescent light.Check whether the remote control designed specically for use with the unit isbeing used. (The unit cannot be operated by any other remote control.)A cracking sound is sometimes heard from the unit. If there is nothing wrong with the picture or sound, this is the sound of the cabinetundergoing very slight contractions in response to changes in the room temperature.There are no adverse effects on the performance or other aspects.The top or bottom of the picture on the screen is cutoff when I use the zoom function.Adjust the position of the picture on the screen.Areas at the top and bottom of the screen wherethe image is missing appear when I use the zoomfunction.When using a video software program (such as a cinema size program) with ascreen wider than one in the 16:9 mode, blank areas separate from the imagesare formed at the top and bottom of the screen.I can hear sounds coming from inside the unit. When the power is turned on, a sound of the display panel being driven may beheard: This is normal and not indicative of malfunctioning.Parts of the unit become hot. Even when the temperature of parts of the front, top and rear panels has risen, thesetemperature rises will not pose any problems in terms of performance or quality.Power automatically turns off unexpectedly. Check the settings of “PC Power management”, “DVI-D Power management”, “Nosignal power off” and “No activity power off” in the Setup menu. Any of them may beset to “On (Enable)”. (see page 41)Power indicator is blinking in red. There is possibility of malfunction. Please contact an Authorized Service Center.This Plasma Display uses special image processing. Hence a slight time lag may occur between image and audio, depending on thetype of input signal. However, this is not a malfunction.Plasma Display panelSymptoms CheckThe screen darkens slightlywhen bright pictures with minimalmovements are shown.The screen will darken slightly when photos, still images of a computer or other pictures with minimalmovements are shown for an extended period. This is done to reduce image retention on the screenand the shortening of the screen’s service life: It is normal and not indicative of malfunctioning.It takes a while for the pictureto appear.The unit digitally processes the various signals in order to reproduce esthetically pleasing images. Assuch, it sometimes takes a few moments for the picture to appear when the power has been turnedon, when the input has been switched.The edges of the imagesicker.Due to the characteristics of the system used to drive the panel, the edges may appear to icker inthe fast-moving parts of the images: This is normal and not indicative of malfunctioning.The brightness on both sides ofimages in the 4:3 mode changes.When viewing the side panels at the “High” or “Mid” setting, the brightness on both sides may changedepending on the kind of program shown: This is normal and not indicative of malfunctioning.Some parts of the screen donot light up.The plasma display panel is manufactured using an extremely high level of precision technology,however, sometimes some parts of the screen may be missing picture elements or have luminousspots. This is not a malfunction.Image retention appearsDo not allow a still picture to be displayed for an extended period, as this can cause a permanent image retention toremain on the Plasma Display.Examples of still pictures include logos, video games, computer images, teletext and images displayed in 4:3 mode.Note:The permanent image retention on the Plasma Display resulting from xed image use is not anoperating defect and as such is not covered by the Warranty.This product is not designed to display xed images for extended periods of time.Whirring sounds can be heardfrom the display unit.The display unit is tted with a cooling fan to dissipate heat generated during normal use. The whirringsound is caused by rotation of the fan and is not a malfunction.