Troubleshooting Guide25Before calling service personnel, please check the following chart for a possiblecause to the trouble you are experiencing.Unevenness in colour insome parts of the screen.When the set is switched on, do not shift or movethe set around. Sometimes it may develop anunevenness in colour in some parts of the screen.This can be eliminated by switching off the set withthe POWER switch and wait for 10 minutes beforeswitching on again.Snowy picture. It is possible that the aerial "lead-in" is damaged orcomes off.Check the antenna direction.Remote controller doesnot work.The batteries may be worn out.The batteries may be installed with their polarityreversed.Even if the picture or the sound is normal, changesin room temperature sometimes makes the TVcabinet expand or contract, making a noise. Thisdoes not indicate a malfunction.TV cabinet creaks.Power is not turned on.Poor colour, poor tint.Be sure the power cord is plugged in.Contrast, colour, tint are not correctly adjusted.Spots appear on the screen. Possible interferences of automobiles, motorcycle,trolley bus, neon lamps, etc.Stripes appear on the screen.Double images or "ghosts".Possible interference of electronic interferencefrom another TV set, a computer, an electronicsgame machine, a broadcast station, etc.This may be caused by reflections from nearbymountains or buildings.Check the antenna direction.Check the following itemsSymptomsNo picture and most of thebuttons are useless. It is possible that the TV set is in child lock mode.Black screen but the soundis normal. It is possible that the TV set is in music TV mode.AV playback interference. It is possible that both of the DVD and S-Videoterminals are connected.