The Tech Grandkid · thetechgrandkid.com/guides/tv-no-signal/
Your TV says No Signal. Here's how to get the picture back.
"No Signal" often means the TV is looking at the wrong input. The fix can be one button.
This page is for you if
- The TV says No Signal, Weak Signal or Check Signal Cable
- The TV is on but the screen is black
- Someone pressed a button and now nothing shows
Why this happens
A TV has several inputs, like HDMI 1 and HDMI 2. Roku says the most common cause of a black screen is that the TV is set to a different input than the one your box is plugged into.
Do these steps
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Step 1: Turn on the box
Make sure the cable box, Roku, DVD player or other box is turned on.
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Step 2: Press Input or Source
On the TV's remote, press Input, Source or Video. Step through the inputs one at a time. Wait about 10 seconds on each one.
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Step 3: Match the input to the plug
Look at where the box's cable plugs into the TV. If it says HDMI 2, pick HDMI 2.
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Step 4: Check the cable
Push the HDMI cable in firmly at both ends. If you have another HDMI cable, try it.
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Step 5: Restart the box
Unplug the box's power cord, then plug it back in. For a streaming stick, take it out of the TV and plug it back in too.
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Step 6: Try another box or another TV
If a different box works on the same input, the first box has the problem. If nothing works on any input, the TV may need service.
Good to know
Check it with the source
We wrote these steps from these official pages. If your screen looks different, the official page is always right.
- Samsung: Samsung TV or projector shows an error message https://www.samsung.com/us/support/troubleshoot/TSG10002333/
- Roku: Fix a Roku TV that has a black screen https://support.roku.com/article/no-picture-on-your-tv
Still stuck?
Tell Buster what you see, in your own words.
Or email us at buster@thetechgrandkid.com. Never send us a password or a code.