I have an HD Flat Screen TV and when I turn it on it says NO SIGNAL. I have not seen this before as my CABLE BOX is connected and turned ON. I do not know if there may be something wrong with my Samsung TV or if it is the cable box causing my problem. I know my TV works because I can see it displaying the words “NO SIGNAL”. Is there maybe something wrong with the TV where the cables go in on the back of the TV?
TV NO SIGNAL
If your TV displays a “No Signal” message on the screen (HDTV or Standard TV) it could be one of the 4 issues we have listed below…
1 – Is the NO SIGNAL issue happening on just one TV?
CORRECT INPUT or SOURCE
If it is just one TV that is showing the NO SIGNAL…
-Be sure your TV is on the correct source or input as your CABLE or SAT BOX.
-Press the TV button on TV remote control to turn your TV ON.
-Press the INPUT button on your TV remote control.
-Cycle through all the inputs on your TV.
-Do this until you are on the INPUT your CABLE or SAT BOX is plugged into.
-You should then see the CABLE or SAT programming show on your TV.
HINT: Your TV will most likely list the TV INPUTS as: HDMI 1, HDMI 2, HDMI 3, VGA, Component 1, Component 2, and so on.
If you still see NO SIGNAL on your TV screen, see the next step below…
2 – If you have your TV on the correct INPUT or SOURCE and you still see NO SIGNAL…
CABLE OR SAT BOX NEEDS RESET
-Remove or unplug the power cable from the Cable TV or SAT set top box.
-Keep it unplugged for 2 to 3 minutes.
-Plug the power cable back into your Cable or SAT set top box.
-Give it some time for the Cable or SAT box to power up, get the signal, and initialize.
If you still see NO SIGNAL on your TV screen, see the next step below…
3 – If you have reset the Cable or SAT box and still have the NO SIGNAL…
UNPLUG THE CABLE GOING FROM THE TV TO YOUR CABLE OR SAT BOX
-Remove the HDMI cable or other cables from your Cable TV or SAT set top box.
-Keep the cable unplugged for 2 to 3 minutes.
-Plug the HDMI cable or other cables back in.
-Give it some time for the Cable or SAT box to get the signal and initialize.
HINT: Make sure all the cables that are connected to your Cable or SAT box and your TV are tight, undamaged, and secured.
4 – If all of your TVs are affected with the NO SIGNAL screen…
BE SURE THE COAX CABLES OR ETHERNET CABLES ARE SECURE or CABLE OR SAT IS DOWN TEMPORARILY
-Be sure to check the ones where the CABLE or SAT come into your home.
-Be sure ALL Ethernet and Coax cables are secure.
-Call your CABLE or SAT provider to see if there is an outage.
-Realign your Dish if you have SATELLITE.
If you need more help with a TV that says NO SIGNAL, please leave a comment below and we will be happy to assist.
Written by Keith Schneerer
Certified Appliance Tech · Founder, RemoveAndReplace.com
Keith has spent 30+ years repairing machines, starting as a military mechanic and later maintaining food processing equipment before moving into appliance repair. He founded RemoveAndReplace.com to share field-tested repair advice.
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My lg tv goes on after ten minutes of watching it it comes up no signal what is problem
Hi RR,
Many, many thanks for your reply.
Unfortunately, our old Daewoo died a death by the following morning.
Nothing would work when she was turned on.
No lights on the front nothing – so – she has gone to the big tv graveyard ”in the sky”.
Since replaced by a Samsung series 6 tv.
Petra70,
Sounds like the TV may have an issue with a loose/faulty HDMI cable, the HDMI connections in the TV are shot or a circuit board issue.
You may just simply have a loose wire or a faulty HDMI cable.
Check to be sure the cables are secure, not damaged, and none of the connections are bent (on cables and TV).
Have you tried switching cables and components?
Are the cables connected correctly?
-RR
We have a fairly old (2008) Daewoo LCD flatscreen tv – which has worked pretty well, until this morning.
Problem: It will not stay on the HDMI channel.
When HDMI is selected the tv seems to switch off and then come on again to the ”no signal” message.
We use a Virgin Media Tivo box which is the ONLY source for the TV – via the HDMI input port.
Normally . . . When the tv is first switched on, we get the ”no signal” message, and have to scroll through the multimedia channels with the tv remote until HDMI is reached, and then and only then can the signal from the Tivo can be watched.
We also have a dvd player plugged into the tv via scart lead on channel AV1.
AV1 and AV2 channels will also cause the tv to switch off (red light on… flashes… then green) and be back at the ”no signal” message.
Rosalie,
Try a new HDMI cable.
Be sure the component the HDMI cable is connected to is ON.
-RR
After setting up omgtv, All HDMI plug I tried, it says “no signal. The tv is working but not the HDMIs
I accidentally pressed down on my hard disc remote which I use to access my freeveiw channels. Since then (last night ) I can’t get my TV channels on the screen keeps saying to check my antenna. and I can’t get my channels working. I don’t know what I’d pressed on to lose the TV channels can you help ?