Panasonic TX-26LXD500 Operating Instructions Manual

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Panasonic TX-26LXD500 Operating Instructions Manual Manual pdf 55 page image

55Some problems will only occur when viewing DVB channels. Due to the different techniques involved in digital reception,DVB signal quality can be poor even if you appear to have a strong signal when viewing analogue programmes.The DVB system requires a good quality signal to provide the best picture. When viewing analogue pictures, interferencesuch as signal reflection from nearby buildings or mountains causes ‘ghosting’, but still provides a viewable picture.For the DVB system, interference such as this can disrupt the flow of data causing the picture to appear to be madeup of large blocks, or to freeze intermittently. If the picture disappears completely, this could mean that signal qualityis very poor. If this happens often, you may need to improve your aerial system to provide a better signal. This TVcontains a complex microprocessor which enables you to view enhanced digital services. Occasionally this devicemay need to be reset. This can be done by pressing the standby button on your remote control.Symptoms ChecksNo DVB channels listed in the TV Guide after AutoSetup.ExitInfoChange display modeSelect channelSelect ProgrammeCategory Prog. type+24 HrDVB TV Guide :Landscape Wed 12/05/04 10:46Wed 12thTime: 19:30 20:00Prog. typeCategoryAll Services20:30 21:00 21:30All TypesCategoryAll ServicesCheck that DVB transmissions are available from thetransmitter you are currently using. If not, try directingthe aerial at another local transmitter.Check analogue transmissions. If picture quality is poor,you will need to improve or change your aerial system toreceive DVB channels. Consult a local installer.Blocky interference.Picture freezes intermittently.Blocky interference indicates that the signal quality ispoor.You should consider improving your aerial system.To check the quality of your signal use the Signal Qualityfeature (see page 26).Good quality signal – indication is green.Poor quality signal – indication is red.I have a good aerial system, but still cannot receive DVBstations.If you have tried the previous solutions and are still unableto receive DVB channels, you may need to providededicated aerial feeds to the TV and other equipment.This can be implemented using an aerial splitter orseparate aerials.TVVCRAerialInputterminalAerialInputterminalAerialInputterminalSeparateAerialSeparateAerialAerialOutputAerialOutputAERIALSPLITTERDVB Troubleshooting