Backlights are one of the most common failure points on LCD panels. Even though they usually say “no serviceable parts” on the back you might still be able to fix your monitor. Jared Bouck ...

For standard TVs with full local array backlighting, horizontal dark bands suggest a failure of the horizontal backlight strips. Replacing these strips is necessary to fix the issue[3].

For many owners of TCL Roku TVs, backlight issues can be a frustrating and daunting problem. Here is a comprehensive guide to help you diagnose, troubleshoot, and potentially repair or replace the ...