Panasonic TH-47LFV5W Operating Instructions Manual

Also see for TH-47LFV5W: Service manual Operating instructions

Panasonic TH-47LFV5W Operating Instructions Manual Manual pdf 33 page image

33Symptoms ChecksPicture SoundInterference Noisy SoundElectrical AppliancesCars / MotorcyclesFluorescent lightNormalPicture 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 POWER button on this Display or on the remote control.)No Picture NormalSoundIf a signal with a non-applicable color system format, or frequency is input, onlythe input terminal indication is displayed.No remote control operations can beperformed.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 fluorescent light.Check whether the remote control designed specifically for use with the unit isbeing used. (The unit cannot be operated by any other remote control.)A cracking sound is sometimes heard fromthe unit.If there is nothing wrong with the picture or sound, this is the sound of thecabinet undergoing very slight contractions in response to changes in the roomtemperature. There are no adverse effects on the performance or other aspects.The top or bottom of the picture on the screenis cut off when I use the zoom function.Adjust the position of the picture on the screen.Areas at the top and bottom of the screenwhere the image is missing appear when Iuse the zoom function.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 theunit.When the power is turned on, a sound of this Display panel being driven maybe heard: 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,these temperature rises will not pose any problems in terms of performance orquality.Power automatically turns off unexpectedly. Check the settings of “OFF TIMER” or “POWER SAVE”. Any of them may beset to enable (see page 25, 27).This LCD Display uses special image processing. Hence a slight time lag may occur between image and audio, depending onthe type of input signal. However, this is not a malfunction.Symptoms ChecksIt takes a while for the picture to appear. The unit digitally processes the various signals in order to reproduce estheticallypleasing images. As such, it sometimes takes a few moments for the picture toappear when the power has been turned on, when the input has been switched.The edges of the images flicker. Due to the characteristics of the system used to drive the panel, the edges mayappear to flicker in the fast-moving parts of the images: This is normal and notindicative of malfunctioning.There may be red spots, blue spots, greenspots and black spots on the screen.This is a characteristic of liquid crystal panels and is not a problem. The liquidcrystal panel is built with very high precision technology giving you fine picturedetails. Occasionally, a few non-active pixels may appear on the screen asfixed points of red, blue, green, or black. Please note this does not affect theperformance of your LCD.Image retention appearsImage retention may occur. If you display a still picture for an extended period,the image might remain on the screen. However, it will disappear after a while.This is not considered as malfunction.

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