44 English Other InformationTroubleshootingBefore contacting the Samsung after-sales service, perform the following simple checks.If you cannot solve the problem using the instructions below, note the model and serial number of the television and contact your localdealer.No sound or picture Check that the mains lead has been connected to a wall socket.•Check that you have pressed the button on your set.•Check the picture contrast and brightness settings.•Check the volume.•Check if• Speaker Select is set to External Speaker.Normal picture but no sound Check the volume.•Check whether the• M MUTE button has been pressed on the remote control.No picture or black and whitepictureAdjust the colour settings.•Check that the broadcast system selected is correct.•Sound and picture interference Try to identify the electrical appliance that is affecting the television, then move it further• away.Plug the television into a different main socket.•Blurred or snowy picture,distorted soundCheck the direction, location and connections of your aerial.•This interference often occurs due to the use of an indoor aerial.•Remote control malfunctions Replace the remote control batteries.•Clean the upper edge of the remote control (transmission window).•Check that the + and – ends of the batteries are inserted correctly.•Check that the batteries are drained.•Screen is black and powerindicator light blinks steadilyOn your computer check; Power, Signal Cable.•Move the computer’s mouse or press any key on the keyboard.•On your equipment check (STB, DVD, etc) ; Power, Signal Cable.•The TV is using its power management system.•Press the Source button on the panel or remote control.•Turn the TV off and on.•The damaged picture appears inthe corner of the screen.If• Screen Fit is selected in some external devices, the damaged picture may appear in thecorner of the screen. This symptom is caused by external devices, not TV.The "Resets all settings to thedefault values" message appears.This appears when you press and hold the• EXIT button for a while. The product settings arereset to the factory defaults.Securing the Installation SpaceKeep the required distances between the product and other objects (e.g. walls) to ensure proper ventilation. Failing to do so may resultin fire or a problem with the product due to an increase in the internal temperature of the product. Install the product so the requireddistances shown in the figure are kept.When using a stand or wall-mount, use parts provided by Samsung Electronics only.■If you use parts provided by another manufacturer, it may result in a problem with the product or an injury due to the productfalling.If you use parts provided by another manufacturer, it may result in a problem with the product or fire due to an increase inthe internal temperature of the product due to poor ventilation.The appearance may differ depending on the product.■When installing the product with a stand When installing the product with a wall-mount10 cm10 cm 10 cm10 cm10 cm 10 cm10 cm10 cm10 cm 10 cm10 cm10 cm 10 cm10 cm