If you are seeing no signal detected on apple tv with black screen when you turn on and no signal detected can appear if there is no power received from cables and you need to unplug power cable from back of your apple tv and plug it back again and change hdmi cables, power source cables connecting to apple tv and other solutions below.
Most of the time this issue is with corrupted cables or corrupted or damaged power source cables or hdmi port cable issues and change hdmi port connections on apple tv and you are checking different hdmi input that you are connected to on Apple tv.
How to Fix No Signal Detected on Apple TV
Below simple apple tv troubleshooting methods will help you easily fix no signal error on apple tv.
Force Restart Apple TV Using Remote
Grab your Apple tv remote and press and hold menu button and home button for 10 seconds and then press menu button and wait for your iPhone to reboot completely and check with apple tv screen.
Power Reset Apple tv
Unplug the power cable of Apple tv completely from Wall socket and wait for 30 seconds and then plug it back after 30 seconds and then turn on apple tv and check. If there is any temporary software glitch then apple tv no signal detected issue will be resolved.
Select Correct HDMI Source
If you are connected to hdmi port 1 and you are selecting hdmi port 2 on apple tv then apple tv will display no signal detected because hdmi port that you have connected is hdmi port 1 and you need to select correct hdmi port that you are connected hdmi port.
Loose Power Cables Unplug Power Cable and Plug it back
You need to unplug the power cable connected to Apple TV and plug it back again tightly and make sure there is no loose connection and power source cable is connected properly and tight.
Now, go ahead and turn on your apple tv and see no signal error is still appearing or not and it still appears then move to the next method.
Change Power Cable with New One
Due to faulty power cable you can see No signal detected on Apple tv error and this can happen all of sudden as power cable becomes faulty or corrupted and you need to get a new power cable and connect to apple tv and if the issue with power cable then your issue of no signal detected on apple tv will be fixed.
Corrupted HDMI Cable
If the apple tv hdmi cable is corrupted or damaged then you apple tv will not detect and no signal detected error can appear with black screen and you need to get a new hdmi cable and connect it to Apple tv and check.
Connect to Another HDMI Port on Apple tv
Unplug connected HDMI cable from back of apple tv completely and plug it back on different hdmi port and see if apple tv is detecting signal and if apple tv is detecting signal then there is an issue with HDMI port.