Tips For Maintaining TCL TV Performance. Here are the key tips for maintaining TCL TV performance. Keep your TCL TV clean. A dusty or dirty screen can cause the display to dim and appear dull. Use a soft, dry cloth to wipe the screen occasionally, or use a slightly dampened microfiber cloth for extra cleaning power.Smart TV and Android TV are inclusive relationships, meanwhile, Android TV has almost all the functions of smart TV but with the Android operating system powered by Google. Some TV manufacturers also have their own built-in operating system when launching smart TV. Similarly, if the operating system of a smart TV is Roku, we can call it Roku TV.
Adjust the Fast Start option. Many TCL TV owners have successfully fixed the black screen by allowing or disallowing the Fast Start options. Enable or disable it according to the current settings. For TCL Roku TVs, follow these steps: Tap on the Home button on the Roku TV remote control. Go to Settings > System.
2. Replace Your HDMI Cables. There's a strong possibility that a poorly seated cable is creating signal noise which is displaying as horizontal lines, and is also a common cause of vertical lines. This comes down to either a: Faulty HDMI cable with a break in it. Damaged HDMI port with broken pins. biILIrT.