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Weak or no signal

The other day I decided to add a cable box so I could watch On Demand through Comcast. Once I hooked it up the message on the screen said ''Weak or no signal''. Comcast wanted to come out but I had decided to just return the box. When I reconnected the cable directly to the the TV from the wall I still got the message ''Weak or no signal''.

I have had this TV since around April 08 and it always worked fine. It was working right before I connected the box but not since. I have also tried connecting the cable to a different TV and it worked fine.

Any ideas?

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  • thecaptive Nov 27, 2008

    I have tried both cable and air in the menu. I do not have an antenna for the analog but I can pick up 2 channels. The picture is weak but stronger than I would have expected with no antenna. I have also tried unplugging the TV for a few minutes, don't know what I expected to happen but it was something to try.

    I am wondering if there could have been a problem with the box that may have caused a problem with my TV.


  • jason May 11, 2010

    do you have the antenna in the menu set to cable?

    does it have the same problem picking up the air analog tv waves?

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You would need to know if the tuner is picking up analog signals in the air well( stick a wire a little bit in the tuner connection to see if channels pick up good or use an antenna , if so there should not be a problem with the cable being hooked up to it , if there is a problem even with an antenna then the tuner is bad and will need to be replaced , and the cable could have caused it to go out , but make sure that the tuner is working or not first.

Posted on Nov 27, 2008

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