阿拉伯联合酋长国采购需求：液晶显示器、液晶终端、LED电视、商用显示器、医疗显示器、医疗液晶终端

I'm reaching out because I'm experiencing an issue with my KTC TV. The screen suddenly goes completely blank, and I can't seem to regain any functionality. I've tried using both the remote and the buttons on the TV itself, but nothing seems to respond. Could you please advise me on the next steps to troubleshoot this problem? I would appreciate any guidance or solutions you may have. Thank you for your assistance!