Vizio TV Flashing Like A Strobe Light? Iv. (Possible Causes & Fixes)

Not only is it annoying, but it also makes watching your favorite shows impossible. When your Vizio TV begins to flicker quickly, the results are much less than satisfactory. Trying to watch the TV is impossible. Sometimes even trying to read the menu and set up screens can be difficult. Finding and fixing a strobe light effect on your Vizio TV becomes a priority.

If your Vizio TV begins to flash or flicker quickly, much like a strobe light, you should suspect a bad video controller card, backlight problems, or a loose or faulty video cable. To find and fix the problem, you can resort to a soft or power reset, a factory reset, or a visit from a service technician.

Other more obscure problems can cause the flashing, but overall, the cause is usually related to one of the problems mentioned above. Approaching the solution to this problem requires a methodical and systematic approach. Our step-by-step instructions will help you work through this issue with the least problems and in the shortest time.

Most Vizio TVs use a liquid crystal display (LCD) to show the images on the screen. These displays use thousands of tiny crystals controlled by a computer in your TV. As power is applied to each crystal, they distort slightly, creating a different color for your eye.

The crystals don’t emit any light. To see the colors created by the crystals, light must shine through them. This light is provided in your Vizio TV by a set of LED lights behind the crystal screen. If the backlights don’t work, you may only see a very dim picture, if at all.

So, problems with a flickering LCD screen can be associated with any of the following:

If the backlights behind the screen on your Vizio TV are flickering or blinking, your TV screen can appear to be imitating a strobe light. You can determine if the screen on your Vizio TV is working by shining a flashlight at the screen. A dim image in the flashlight when the screen is dark is a good sign.

If you can see the images when the screen is dark using a flashlight, the backlights are not working. Most Vizio TVs use strips of LED lights to provide backlighting. Several issues can cause these LED strips to flash, blink, or fail.

Unfortunately, the fix for this problem is a visit from a service technician. A trained technician can determine if the LED strips are bad or if the power supply for the LED lights has failed. In either case, this means opening the case of the TV. We recommend that homeowners not attempt this fix themselves.

If you do identify a problem with an accessory device, the device may not be the problem. The cable that connects the device to your Vizio TV may be the source of the problem. Check each cable carefully for damage or wear. Replace any cables that show signs of damage or if the plugs look loose or don’t fit properly.

Many times, it is impossible to visually see a defect in an HDMI or video cable. The only way to determine if there is a problem is to substitute a good cable. When switching cables, make sure that the plugs are inserted correctly and fit snuggly in the sockets.

Always use high-quality video and HDMI cables. Keep the length of the cables as short as possible as well. Cheap HDMI and video cables won’t deliver the quality of video that your Vizio TV can produce and usually won’t last as long.

If the flickering or blinking persists after trying all these remedies, you probably have deeper problems with a video control board or the main control board in your Vizio TV. Our recommendation at this point is to contact a trained Vizio service technician to look at your TV.

Repairing or replacing the internal control boards or the backlight LEDs on your Vizio TV is not a project that most homeowners can undertake. If your Vizio TV is still under warranty, a service technician can help you navigate filing a warranty claim. You want to protect your investment in your Vizio TV as much as possible.