In most cases, the TV box is either powered off, not connected correctly, or set to the wrong input on the TV. Service outages can also cause this problem. Changing your TV setup or antenna should resolve the issue. 

Reasons Your Tv May Have No Signal 

There is a possibility that the signal is weak. There may be an off or standby mode on the source device. Check whether the channel is live or the media is blank. If not, change the channel or try another source.  The signal can sometimes be weakened by bad weather. Try rescanning when the weather is clear if this appears to be the case.  You might have the wrong input setting on your TV. Sometimes, you may need to cycle through the input options until a picture appears on the screen. Depending on your TV, an older model may not be able to receive digital signals. It will be necessary for you to use a digital converter box if this is the case.

No Signal on TV? Fix It

Connect HDMI cables correctly 

If your HDMI connection isn’t working, check your HDMI cables. Ensure your TV’s HDMI input is set correctly and restart your streaming device and TV. 

You can also contact your TV manufacturer or streaming device company if you still have problems.

 Fixing HDMI No Signal Issues.

 Here are the steps to follow.

Remove HDMI cables from all TVs and monitors.  Wait about 10 minutes before plugging back in the power cable after removing it from the TV or monitor.  Reconnect the TV or monitor’s power cable.  Connect one device to your TV’s HDMI port.  Start the device.  Repeat steps 4-5 for every HDMI port and device.  

Change the HDMI port if necessary.  

Try plugging your HDMI device into a different HDMI port if you are having trouble getting it to work with your TV. 

There may be issues with one particular HDMI port, so switching to a different one may solve the problem. 

Also, if you have multiple HDMI devices, try plugging them into different ports. There may be settings on your TV or HDMI device that need to be adjusted to work properly. 

Check all connections for damage.

 When your television is showing a “no signal” error, you should first make sure that all of the connections aren’t damaged.

 Next, you’ll want to look for any damage that may have happened to the TV.

 The best action is to have the TV repaired by a professional if you see any physical damage.

 However, you can reset it if you do not see any damage. 

Re-check your inputs and settings 

Ensure that your TV’s input cables are securely connected. You can try resetting the input settings on your TV if this does not work. 

To do this, go to the TV menu and select input. If that doesn’t work, try resetting all of the inputs once you’re in the input settings (for example, if you’re using HDMI input 1, you’d reset HDMI input 1). 

If you’re still having trouble, your TV might have a hardware issue, so you should call a TV repair company. 

Check your cable box, game console, or blue-ray player.  

In case of picture problems with your TV, you may need to reset it if it is connected to an external device. 

It is possible to reset the device by unplugging it from a power outlet and plugging it back in again. 

If you have a remote control, try pressing the power button. 

Conclusion 

Several reasons can explain why your TV is not receiving a signal. It could be that your cable box is not turned on or your TV is not properly connected to the outlet. If you have checked both of those things but still receive the no signal message, your cable company may be experiencing an outage. In that case, you would be better off waiting a little while to see if the problem resolves itself. 

Is there a way to test the signal on my TV? 

On your antenna signal meter, you should find a socket marked “TV” where you can plug in your television. Turn on your antenna signal meter, and set it to the lowest channel available in your area. Your antenna should be rotated slowly 360 degrees until it reaches the strongest signal (usually indicated by LEDs). 

Why does the TV have no signal? 

If the TV box cannot send a signal, the screen will display ‘No Signal,’ ‘No Source,’ or ‘No Input’ messages.