Panasonic TH-42PRT12U Operating Instructions Manual

Also see for TH-42PRT12U: Manual de instrucciones

Panasonic TH-42PRT12U Operating Instructions Manual Manual pdf 30 page image

0TroubleshootingBefore 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 Sound Volume(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 Sound If a signal with a non-applicable color system format, or frequency is input, only the inputterminal indication is displayed.No Color Normal Sound Color controls set at minimum level. (see page 24)No remote control operations can be performed. Check whether the batteries have discharged completely and, if they have not, whether theywere inserted properly.Check whether the remote control sensor is exposed to an outdoor light or a strong fluorescentlight.Check whether the remote control designed specifically for use with the unit is being 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 cabinet undergoingvery slight contractions in response to changes in the room temperature. There are no adverseeffects 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 a screen widerthan one in the 16:9 mode, blank areas separate from the images are formed at the top andbottom of the screen.This Plasma Display uses special image processing. Hence a slight time lag may occur between image and audio, depending on the type of inputsignal. However, this is not a malfunction.Plasma Display panelSymptoms CheckIt takes a while for the picture to appear. The unit digitally processes the various signals in order to reproduce esthetically pleasingimages. As such, it sometimes takes a few moments for the picture to appear when the powerhas been turned on, when the input has been switched or when the images for the main pictureand sub picture on the two screens are swapped.The edges of the images flicker. Due to the characteristics of the system used to drive the panel, the edges may appear to flickerin the fast-moving parts of the images: This is normal and not indicative of malfunctioning.The brightness on both sides of images in 4:3 modechanges.When viewing the side panels at the “BRIGHT” or “MID” setting, the brightness on both sidesmay change depending on the kind of program shown: This is normal and not indicative ofmalfunctioning.There may be red spots, blue spots, green spots andblack spots on the screen.This is a characteristic of liquid crystal panels and is not a problem. The liquid crystal panelis built with very high precision technology giving you fine picture details. Occasionally, a fewnon-active pixels may appear on the screen as fixed points of red, blue, green, or black.Please note this does not affect the performance of your Plasma Display.ExampleImage retention appearsImage retention may occur. If you display a still picture for an extended period, the imagemight remain on the screen. However, it will disappear after a while. This is not consideredas malfunction.