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A TCL TV is an excellent choice for those looking for a television with exceptional features at a lower price than other brands and models. However, if you’re wondering whether the lower price tag compromises the quality, you should know that TCL TVs use a lot of image processing.

Even if it produces a dynamic image, it may produce off-color images with mediocre contrast. If the picture on your TCL Roku TV color problems or keeps changing brightness or colors, resulting in a dim or dark screen, you can try unplugging it or switching power outlets.

A hard reset is also an option. Other possible solutions include adjusting the picture or brightness settings, as well as updating your firmware.

This article will discuss the most common picture and brightness problems encountered by TCL TV owners, as well as the various solutions you can try to resolve them. So keep reading to find out how you can improve and enjoy your TV viewing experience.

How To Troubleshoot TCL Roku TV Color Problems?
How To Troubleshoot TCL Roku TV Color Problems?

TCL TV NOT BRIGHT: HOW TO ADJUST BRIGHTNESS ON TCL TV

If your TCL TV is too dark, you can easily adjust the brightness level with your remote control. To access the Settings menu, press the gear icon on your remote. Because the Picture settings are already selected, click the OK button.

Scroll down to Brightness and press OK using the down arrow on your remote. The brightness level adjuster will then appear, and you can use your arrow buttons to move the scale to the left or right, adjusting the brightness of your screen.

After you’ve made your adjustments, press the Back button to return to the previous screen. These new brightness settings will be saved automatically by the TV.

You can change the picture settings on TCL Android TVs while watching a show. Simply press the star or asterisk (*) button to access the Options menu.

ADJUSTING PICTURE SETTINGS

In addition to adjusting the brightness levels on your TV, you can fine-tune the image’s appearance by going to the Advanced Picture Settings menu. Advanced Settings can be found in the Options menu. Keep in mind that all of the options in this menu apply only to the input you’ve chosen.

You can highlight a setting by pressing the up and down arrow buttons, then change or adjust it by pressing the left and right arrow buttons. You’ll notice the changes you made to the image right away.

Picture Mode is one of the options available in the Advanced Picture Settings menu. This duplicates the settings under the Options menu and provides picture presets for different viewing preferences.

Changing the picture mode affects the other picture settings as well. For example, if you set the picture mode to vivid, the brightness, contrast, sharpness, and other picture values will result in a vibrant image.

Meanwhile, the Movie mode modifies these settings to produce a picture that is better suited for watching movies and TV shows in a darkened room. Backlight is also a setting in the Advanced Picture Settings. This allows you to change the overall brightness of your screen.

The Brightness setting in the Advanced Picture Setting controls the darkness of the image’s black areas. Contrast, on the other hand, adjusts the white level of the image’s light areas. Sharpness, Color, Tint, Color Temperature, Picture Size, and Game Mode are among the other options.

Please keep in mind that the items or values listed in the settings mode may differ or appear differently on different TCL TV models. As a result, you’ll need to investigate these values and see what adjusting each one can do for the image on your TV.

Troubleshoot TCL Roku TV Color Problems
Troubleshoot TCL Roku TV Color Problems

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TCL TV KEEPS CHANGING BRIGHTNESS/DIMMING AND BRIGHTENING / TCL TV KEEPS GLITCHING/FLICKERING

You can try several known fixes if your TCL TV keeps dimming and brightening, changing its brightness level on its own, glitching or flickering, or turning into a black screen.

1. Check Cables, Video Inputs, and Power Outlets

First, double-check your cables and video inputs to ensure they’re all operational. The power cable, HDMI cables, USB, and RGB are examples of these. Check that they are fully plugged into your television.

Sometimes video inputs and cables become a little loose and won’t provide the proper connection for your TV. Damaged or dirty inputs and cables can also cause flashing and color changes. Even if your inputs and cables are fine, it’s still a good idea to unplug them and clean them properly and on a regular basis.

If your cables are in good condition, you can try plugging your TV into a different wall outlet. The current outlet you’re using may have failed and is no longer providing adequate power to your television.

2. Unplug the device and perform a hard reset

You could also try unplugging your television for a minute and then plugging it back in. You can perform a hard reset by unplugging your television and holding down the power button for 30 seconds.

This will deplete any remaining power in your device. After that, reconnect your TV and turn it on.

3. Update Your TV’s Firmware

You can also try to update the firmware on your television. In various support forums, some TCL TV users share links to new software. They also recommend downloading the most recent software update rather than simply opting for network updates directly from your TV because it always claims that your TV has the most recent one.

Another option is to use Google to find the product page for your specific TCL TV model, navigate to the downloads section, and then click the software button to get a zip file that includes an instruction PDF and a bin file. To install the update on your specific TV, follow these steps. Transfer the file from your computer to your TV using a USB stick.

4. Adjusting Advanced Picture Settings

You can also experiment with your TV’s Advanced picture settings to see if it solves your picture brightness problem. For example, instead of Smart HDR, you can select the Vivid picture mode from your TV’s Advanced settings.

You can also try disabling the Black Stretch or Micro Dimming options, which can be found by going to Picture, Advanced Settings, and Brightness Settings. Turning off dynamic contrast and natural light in the menu also helped some users who had the same issue.

TCL TV Picture Not Working
TCL TV Picture Not Working

TCL TV BACKLIGHT ISSUES/NOT WORKING

Backlighting issues can also cause dimness. You can try to resolve this by going to Advanced Picture Settings and adjusting the Backlight setting.

Some users on the AV Forums have also mentioned how accessing a hidden menu solved their automatic dimming problem. They’ve even shared a tip for how to improve it:

  1. Go to the Settings menu, select Advanced Settings under Picture, highlight Contrast, and use your remote to enter the numbers 1950. Your screen will then display a hidden menu.
  1. Scroll down to the Parameter Setting section and click OK.
  1. Select Dynamic Backlight Control (DBC) and deactivate DBC Enable. You can disable the Energy-saving option under DBC for other models.

TCL TV KEEPS CHANGING COLORS

We’ve already discussed how dirty, damaged, or loose cables and video inputs can cause your TV to flash or change colors. If all of your cables are in good working order, you can try disabling the automatic adjustment of the display refresh rate.

Navigate to Settings, then to the System tab, Advanced System Settings, and Advanced Display Settings. Disable Auto-Adjust Display Refresh Rate by clicking on it.

Other solutions include performing a factory reset and turning off the self-test Mode. To exit self-test mode, press the up arrow button on your remote, then the down arrow button. Next, unplug your TV’s power cord and wait 10 seconds before plugging it back in. Wait another 10 seconds before turning on your TV to see if the flashing color has gone away.

TCL TV KEEPS LOSING PICTURE OR TCL TV NO PICTURE ONLY SOUND

If your TCL TV displays no picture but has good audio, you can try to unplug your television from the wall outlet and wait at least 60 seconds before plugging it back in.

If the problem persists when you turn on your TV, it could be due to a faulty HDMI connection. Check that your HDMI cable is securely plugged into the connector on the back of your TV. If the cable does not fit snugly into its current port, connect it to another port.

If changing the HDMI ports does not solve the problem, you can perform a factory reset. Keep in mind that performing a factory reset will erase all of your device’s settings.

If the factory reset does not resolve the issue, you may need to contact TCL support or hire an electrician to inspect and repair your TV.

CONCLUSION

What can you do if your TCL TV screen has gone black but the sound is still working? It can be aggravating to be interrupted while watching your favorite shows.

Fortunately, with the solutions listed above, you should be able to resolve the majority of the issues that are causing the black screen. If the problem persists, your next best option is to contact customer service. Alternatively, you should take your television to a TCL authorized repair center for service.

Common Problems With TCL TVs
Common Problems With TCL TVs

Frequently Asked Questions

How do I fix the color on my TCL TV?

To change the settings in the advanced picture settings menu, press (up) or (down) to highlight a setting, and then press (left) or (right) to change the setting. You’ll notice the changes you make right away in the appearance of your pictures.

What is the cause of the discoloration on my Roku TV?

Local dimming or local contrast is an advanced picture control setting available on certain Roku TV models. Local dimming technology improves the contrast performance of your Roku TV by dimming the areas of the screen that should be dark while leaving the areas that should be bright alone.

Why does my TCL TV look dark?

One of the most likely causes of this is a problem with the HDMI cable that outputs the display from whatever device you are using the TV with. Another possibility is that the TV’s backlight is failing. Most televisions rely on a backlight to illuminate the image, and a problem with the backlight can result in black screens.

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