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TV says no signal

New Poster

TV says no signal

I called for help and customer service agent in a sing-song accent who tried to coach me into removing cables and putting them back but still would not work. The box was just not receiving signal. Feeling exasperated with her accent and her stardardized “ I hope we have been able to help you” line when my problem couldn’t be remedied, I hang up. Comcast charges you a lot but could not send their repair man without charge. I’m moving to AT & t; when my contract expires.
Silver Problem Solver

Re: TV says no signal

That usually means your TV is on the wrong input. Use your TV remote to select the correct input.

Official Employee

Re: TV says no signal

 

Hi Mikenmillie10, I can assist you with your TV issues. Can you please send me a private message with your full name, street address, and account number by clicking on my name (ComcastAmir) and then "private message me"?


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Regular Visitor

Re: TV says no signal

Unfortunately Comcast has junk equipment what you need to do is unplug the cable box plug back in and then it will work
New Poster

Re: TV says no signal

I purchased a new Sony 4K TV for the bedroom and after a couple of weeks received a “no signal” error message from the TV.  If you restart the comcast box it would work fine until the next day.  The comcast tech among other things replaced the box in the bedroom, the main box in the family room and the HDMI cable to the bedroom TV.  The issue still remains.  Does anyone have a solution that works?

New Poster

Re: TV says no signal

I have this exact same problem and am wondering if you got a resolution.

Contributor

Re: TV says no signal

I am having the same problem too!

New Poster

Re: TV says no signal

I had a bad HDMI cable. Installed another one and it works fine.
Official Employee

Re: TV says no signal


@Mikenmillie10 wrote:
I called for help and customer service agent in a sing-song accent who tried to coach me into removing cables and putting them back but still would not work. The box was just not receiving signal. Feeling exasperated with her accent and her stardardized “ I hope we have been able to help you” line when my problem couldn’t be remedied, I hang up. Comcast charges you a lot but could not send their repair man without charge. I’m moving to AT & t; when my contract expires.

No signal usually means that the TV set is on the incorrect video input.

Check to see how your cable box is connected to the TV set.

If connected via RF-coaxial cable, the TV should be on channel 3 or 4.

If connected via HDMI be sure that HDMI is selected on your TV set (there may be an HDMI 2, HDMI 3, etc. input on your TV set, check them all).

If you have X1, be sure that you are connected to the HDMI output on the X1 cable box.

If you are connected via component cables (red, blue, green) be sure that your Component is selected as the input on your TV set

If your TV is connected via composite cables, (red, white and yellow) check that your TV is selected to Video or Game .

Also be sure that your cable box is turned on.


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Official Employee

Re: TV says no signal

As there have been no new replies within the last week, I have closed this thread to further comments. If anyone here is still having issues and needs assistance, please feel free to create a new thread. 


I am an Official Comcast Employee.
Official Employees are from multiple teams within Comcast: CARE, Product, Leadership. We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!