: This board often suffers from power supply failures (TV won't turn on), backlight issues (dim or no video), or boot loops (stuck on logo). Component Values : For SMD repairs, technical forums like All About Circuits
: Audio is present, but the screen is black or very dim, which may point to the board or the LED backlight circuit. tp.ms3458.pc757 service manual
Without the manual, you can often access hidden service menus to adjust panel settings, backlight, and white balance: : This board often suffers from power supply