Fredo: If you've switched on your TV and the sound comes through fine, but you're not seeing any picture; there are 3 potential issues. 1) A connection issue; the most common problem. Where there is a bad connection, faulty cables or improper installation. 2) An issue with the device connected to the TV. There may be a video output setting on the device that you must set properly before it will output to the TV. 3) There is something wrong with the TV, which will require a technician to assess the TV and find a solution. I hope this helps, if you should need further troubleshooting assistance, please contact Samsung Customer Support. 1-800-SAMSUNG (ask for TVs), available 8AM -12AM EST, 7 days a week Or visit us on the Samsung website and click on the ‘Support’ link in the upper right corner of the homepage for: 1) Contact Us Options (LiveChat, Remote Support, Facebook, Twitter) 2) Product Support 3) Manuals and Downloads 4) Warranty Info 5) Product Registration: Registering your product gives you access to easy warranty support, convenient opt-in to special promos and offers, faster troubleshooting and service, and quick notification of system updates 6) Samsung Community: A great resource for getting help from Samsung moderators and customers and more 7) …and more product, repair, order, and care options ~ Samsung Solutions