50Some problems will only occur when viewing DVB channels. Due to the different techniques involved in digital reception, DVB signalquality 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, interference such as signalreflection from nearby buildings or mountains causes ‘ghosting’, but still provides a viewable picture. For the DVB system, interferencesuch as this can disrupt the flow of data causing the picture to appear to be made up of large blocks, or to freeze intermittently. If thepicture disappears completely, this could mean that signal quality is very poor. If this happens often, you may need to improve youraerial system to provide a better signal.Blocky interference indicates that the signal quality is poor.You should consider improving your aerial system.To check the quality of your signal use the Signal Conditionfeature (see page 35).Good quality signal --- indication is green.Poor quality signal --- indication is red.Symptom ChecksBlocky interference.Picture freezes intermittently.No DVB channels listed in the TV Guide after Auto Setup.Check that DVB transmissions are available from the transmitteryou are currently using. If not, try directing the aerial at anotherlocal transmitter.Check analogue transmissions. If picture quality is poor, you willneed to improve or change your aerial system to receive DVBchannels. Consult a local installer.TVVCRAerialOutputAerialInputsocketAerialInputAERIALSPLITTERAerialOutputIf you have tried the previous solutions and are still unable toreceive DVB channels, you may need to provide dedicatedaerial feeds to the TV and other equipment.This can be implemented using an aerialsplitter or separate aerials.I have a good aerial system, but still cannot receiveDVB stations.AerialInputsocketSeparateAerialSeparateAerialDVB TROUBLESHOOTING