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2022 Model TCL LCD TV with Roku interface

Why is there no picture only sound

Why is there no picture only sound

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Here are some troubleshooting steps you can take to help determine the actual issue with your TV. Let me know if you have any questions.

Software Troubleshooting:

  • Hard Power Reset: Unplug TV, Hold physical power button on TV for 30 seconds, leave unplugged for 10 minutes, plug directly into a wall (not power strip), turn on.
    • If this works it was likely a firmware file corruption
  • Try a Blind Reset: With the TV on, hold the reset button with a paperclip for 15-20 seconds (this is a pinhole near the HDMI ports), keep holding until you hear restart sounds.
    • This will force a firmware reset, a video reset, and an HDMI

Hardware Troubleshooting:

  • Flashlight Test: Make the room very dark, turn the TV on, use your phone flashlight or a real flashlight at an angle against the screen and look very chiseler while pressing Home on the Roku remote.
    • You’re looking for faint menus, dim movement, shadows/images.
    • If you can see anything, the LCD panel is working but the backlight is likely failing - the most common issue on large TCL TVs
    • If the flashlight test shows an image, it’s might be worth repair if you can find someone with good pricing (LED strips: $40-$120 + Labor: $250-$500). DIY is possible but 75” panels are extremely fragile and removing LCD panels is risky.
    • If the issue is backlight, DIY repair or finding a repair shop can be an economical solution and could feasibly extend the life of the TV another 2-5 years.
  • If there is no response to the Flashlight Test and there are the following symptoms: no image, strange flashes or lines before the screen went black, the TV cycles/restarts - then the LCD panel has failed and replacing the TV is the most economical option.

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