GB145TROUBLESHOOTINGProblem SolutionNo power • Make sure the power cord plug is plugged into theelectric socket� Unplug the TV from the power supply,wait about 60 seconds and then plug the TV in again andpower on�Bad signal reception • High buildings or hills can lead to analogue signalreflection and shadows� Changing the antennaorientation can improve picture quality�• If you use an inside antenna, reception can be worseunder certain circumstances� Try changing the antennapositioning to improve reception� If the picture does notimprove, use an outdoor antenna�No image • Make sure the antenna is correctly connected to the TV�• Try changing to a different channel to verify the issue isnot your receiver�The picture is fine, but no sound • Increase the volume�• Make sure the sound on the TV is not muted� Press themute button again to restore the previous volume�The sound is fine, but there is no pictureor the colours are incorrect• Increase the contrast and brightness�Snowy picture, noise or picture freezes • Make sure the antenna connection is correct�Interfering horizontal stripes through thepicture• Interference caused by electric appliances, such as hairdryers or vacuum cleaners� Switch off appliances usednear the TV�The TV does not respond to the remotecontrol• Aim the remote control towards the remote controlsensor on the TV�• Remove any obstacles between the remote control andthe TV sensor�• Make sure the batteries in the remote control are notdead�No picture in PC mode • Make sure the video cable connection to the VGAconnector is intact�• Makes sure the format of the picture from the PC iscompatible with this TV�Vertical vibration (in PC mode) • Adjust the display frequency for the picture from the PC�The picture in PC mode is too light ordark• Adjust the brightness and contrast�If the instructions above do not eliminate the issue, unplug the TV from the power supply for about 60 secondsand then plug the TV in again� Should the issue persist, refer to a qualified repair shop� Do not attempt to repairthe appliance yourself�Do not leave the TV with a static picture for a long time (video pause, display of menu, etc�)� There could bepermanent burning of the static picture and damage to the display�