Input Signal Plus Not Working On Samsung TV? 3 Quick Fixes!

Are you struggling with issues related to your Samsung TV’s input signal plus function? Do you find yourself confused about whether you should turn it on or off and how to get it working?

You’re not alone! Many Samsung TV users along with me have faced these issues, which undoubtedly are frustrating and troublesome.

In short, This is a common issue that users face when connecting various devices like Apple TV, gaming consoles, PCs, and Plex to their Samsung TVs. Basically when the input signal plus troubles the TV gives either a black screen or no signal message.

One of the main reasons which lead to the not working of Input Signal Plus on Samsung TVs is due to its automatic HDR detection feature. With older Samsung TV sets, users needed to manually enable the HDR feature via HDMI.

However, with newer models, the TV automatically detects if an HDR signal is being received using the inbuilt Input Signal Plus feature. This can cause conflicts with connected devices and lead to a blank screen or a “no signal” notification. Additionally, it can also cause random signal loss, leaving users frustrated and unsure of how to fix the issue.

When the issue occurs here’s what happens:

• The screen goes fully black
• It gives no signal as nothing is connected to the TV
• Lastly, it sometimes also gives random signal loss

Solution	Details
Replace HDMI Cable	Input Signal Plus feature requires the latest 2.1 HDMI port and a compatible high-speed HDMI cable. A faulty or incompatible HDMI cable can cause interruptions, resulting in Input Signal Plus issues.
Lower The Refresh Rate	Lowering the refresh rate from 144Hz to 120Hz can help resolve the Input Signal Plus issue on Samsung TVs. This is because the high refresh rate can cause conflicts with the connected devices, leading to signal interruptions and blank screens.
Turn Off Input Signal Plus	Turning off Input Signal Plus can resolve the conflict with connected devices and get the TV working normally again.

Note: I have tested, recreated, and solved the issues with Input Signal Plus on my Samsung Q90B TV.

How to Fix the Samsung TVs Input Signal Plus Issue?

This issue can be a major frustration, especially when you’re looking forward to a movie night or an intense gaming session. It’s even more frustrating when you don’t know how to solve it or if you should turn the Input Signal Plus function on or off. But don’t worry, I’m here to help you and I will explain why it stops working and how you can fix it easily.

Note: The following solutions have been reported by users and tested by me, ensuring that they work effectively:

Turn Off Input Signal Plus

Turning off the input signal plus is a simple yet effective solution to fix the issue of a black screen or no signal on Samsung TVs. This is because enabling input signal plus can sometimes cause a conflict with connected devices and lead to the issues mentioned above.

For instance, if a user has a gaming console or a streaming device connected to their Samsung TV and input signal plus is enabled, the TV might try to adjust the refresh rate or resolution to improve the picture quality. This can cause the TV to switch to a different display mode, resulting in a black screen or no signal.

By turning off the input signal plus, the TV will no longer attempt to adjust the picture quality or display mode, and the issue should be resolved. This can be done by navigating to the TV’s settings menu and disabling the input signal plus option.

Here’s how to turn off the Input Signal Plus on Samsung TVs:

1. Go to Settings on your Samsung TV.
2. Select System from the menu.
3. Choose Input Signal Plus.
4. Toggle the feature to “off“.
5. Restart your TV for the changes to take effect.

Overall, turning off input signal plus is a simple yet effective solution to fix the issue of a black screen or no signal on Samsung TVs. It’s a great option to try before attempting further complicated troubleshooting methods.

Change the HDMI Cable

Changing the HDMI cable is another solution that can fix the Input Signal Plus issue on Samsung TVs. This is because the Input Signal Plus feature works on the latest 2.1 HDMI port, and requires a high-speed HDMI cable that is compatible with this feature.

Moreover, A faulty or incompatible HDMI cable can cause interruptions in the signal transmission, leading to the Input Signal Plus issue.

As, Sometimes, the HDMI cable might be damaged, kinked, or frayed, which can also affect the signal quality. In such cases, replacing the HDMI cable with a new one that is in good condition can help resolve the issue.

For example, let’s say you have a 4K HDR streaming device connected to your Samsung TV via an HDMI cable. When you try to play a 4K HDR movie, you notice that the screen goes blank or displays an error message. You’ve already tried turning off the Input Signal Plus feature, but it didn’t work. In this scenario, changing the HDMI cable to a high-speed HDMI cable that is compatible with the Input Signal Plus feature can help solve the issue.

Reduce the Refresh Rate

A higher refresh rate can result in smoother motion and less blur, but it can also put more strain on the TV’s hardware. In some cases, having a high refresh rate can cause issues with the TV’s compatibility with other devices, such as input signal plus functionality.

If you are experiencing issues with your Samsung TV and have tried the other solutions without success, reducing the refresh rate may help. This can be done through the TV’s settings menu as well as from the connected device’s picture settings easily.

For example, if your TV is set to a refresh rate of 144Hz, you can try reducing it to 120Hz. This often helps to reduce the strain on the TV’s hardware and resolve the issue with Input signal plus.

Note: I personally used this method on my Samsung TV when I faced the issue of input signal plus conflict causing a blank screen, and it worked effectively.

Overall, reducing the refresh rate can be an effective solution for resolving issues with Input signal plus on Samsung TVs, and is worth considering if other solutions have not worked.

Conclusion

In conclusion, Samsung TV users may encounter issues with Input Signal Plus due to conflicts with connected devices and the automatic detection of HDR signals. The good news is that there are several solutions to try before resorting to costly repairs or replacements.

Firstly, turning off Input Signal Plus can be an effective solution to fix the issue. Additionally, changing the HDMI cable to a high-speed compatible and properly conditioned one can also help. Finally, reducing the TV’s refresh rate from 144Hz to 120Hz may also solve the problem.

To sum it up, here are the quick wrap-up points:

• Input Signal Plus conflicts with connected devices and the automatic detection of HDR signals may cause the issue.
• Turning off Input Signal Plus, changing the HDMI cable, and reducing the refresh rate can solve the problem.
• Changing the HDMI cable to a high-speed compatible and properly conditioned one can ensure the best performance.
• Troubleshooting steps can save you the cost of costly repairs or replacements.
• If the issue persists, contacting Samsung customer support can provide additional assistance.

At the end of the day, your entertainment is important, and dealing with TV issues can be frustrating. But with these solutions, you can get back to enjoying your favorite shows, movies, and games without interruption. Remember, if these solutions don’t work, don’t hesitate to contact official Samsung Support who can diagnose and solve the issue for you.

FAQ