Reference sectionDigital LED LCD television user's manual EN-2626Reference sectionsTroubleshootingPlease use the guide below to help you determine thecause of possible faults.No picture, nosoundCheck that the television isplugged in correctly.Check whether the televisionhas an adequate power supply.Check whether the electricitysupply to available.Blank screenVerify if correct signals are input.Try to change the input signalusing the remote control.Restart the television if the powersupply is interrupted.No soundPress the MUTE button to checkwhether Mute mode is currentlyactive.Switch to another channel andcheck whether the same problemoccurs.Try pressing the VOL+ button tosee if that solves the problem.Poor soundCheck that the sound system isset up correctly. Refer to the userguide for any adjustments.No picture onsome channelsCheck that you have selected thecorrect channelAdjust the aerial.No colourpictures onsome channels(black andwhite)Check whether there is an issuewith other channels.Check the picture settings andthe sound systems.Refer to the relevant part ofthis user's manual to adjust thecolours.Spots on someor all picturesCheck that the aerial isconnected properly.Make sure the aerial is in goodcondition.Make fine adjustments to thechannel.Unableto controltelevisionDisconnect from power supplyfor 10 seconds and thenreconnect. If the problempersists, contact an authorisedafter-sales service for technicalassistance.NoteIf the issue cannot be resolved using the aboveguide, consult with your local authorised servicecentre.The TV set must only be repaired by qualifiedregistered service personnel. Do not attemptto remove the back cover as the TV set hasdangerously high voltages that may cause fireor injury.