No signal, check cable

Lalala -
lalala - 1 Sep 2018 at 19:00

Hello
On vacation, we took the precaution of unplugging the antenna and the power supply of the TV. (TV with built-in TNT, receiving via aerial antenna, no box). Upon our return, the TV shows "no signal found, check the cable," which I do: everything seems normal but I unplug and plug it back several times...same issue. I move the TV to a different room to connect it elsewhere, as I have an antenna socket in the office...same issue. I also bought a new brand new antenna cable and tried the setup in both locations: same message! In desperation, I tried to retune (air + dtv) and started an automatic channel scan, but no channels found, unsurprisingly... However, when I turn it back on now the message has changed and indicates "no channels found." Can someone help me?? I would like to add that this damn TV is only three and a half years old... Thank you.

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3 réponses

Réponse 1 / 3

Sylviane17 Posted messages 2885 Registration date Status Modérateur Last intervention 386

Hello,
and by checking in "source" if it's the right input (TV, AV, HDMI...)

--
Tomorrow is another day, let's live in the moment.

lalala

Thank you Sylviane for your response. The source setting is just fine as I already mentioned: with a rooftop antenna it’s “air”, searching for “dtv” channels.

Réponse 2 / 3

glandu Posted messages 25498 Registration date Status Contributeur Last intervention 4 086

Hello, my first reaction from my place is that your TNT reception is either down, the antenna has turned, or the cable connection is broken.

--
"Donkeys change their minds, but idiots don't."
Please remember to mark your message as "resolved" if that's the case.

lalala

Thank you for your reply.
As for the antenna turning, why not, but still, there wasn't a storm during our absence...
So I would lean more towards a failure of the TNT reception or the cable connection: but I really don't know what we are talking about in both cases! Is it a component integrated into the TV? Because after all, I'm beginning to think that it might be the TV that is malfunctioning... Or is it the cabling network of the house?
In any case, if you have any idea of how to proceed: is calling a repairman worth it?? Personally, I'm going to try plugging it in somewhere else other than my home to check whether the problem comes from my TV or from the house: I just have to find someone in my circle who receives via antenna... not easy in this age of boxes and the like!

Réponse 3 / 3

glandu Posted messages 25498 Registration date Status Contributeur Last intervention 4 086

Hello, if your TV says "no channels found," in my opinion, you probably already have a chance that your TV is working.
You can borrow a small TV to test your line and your TV at the same time.

--
"Donkeys change their minds, not fools."
Remember to mark your message as "resolved" if that's the case.

lalala

Indeed, I hadn't thought of connecting another TV at my place ;) ...that I don't have, but that I will find :)
Great, I'll get back to you next week because I won't be able to tackle it before then. Thanks again!!

lalala

Hello, I'm back... with my problems! I ended up trying the manual search for digital channels again (which, confusingly, works more like an automatic search since it starts by itself, without any other manipulation): this time, against all odds, it allowed me to receive all the TNT channels (about forty). Another problem then arises from one day to the next: I have to repeat the operation as soon as I turn off the TV the night before and turn it on the next day, because during the same day if I turn it off and then on again, I usually receive it without having to restart the manual search... It should be noted that the reception is of poor quality: often interrupted and choppy, or even suddenly completely cut off (black screen) for a few seconds. The indications that appear in the "manual digital tuning" option give a percentage:
- for quality: a number that reaches about 100 more or less quickly, without varying much afterwards
- for signal strength: a number that barely reaches 50 at most and keeps decreasing/increasing afterwards, by a few units or several tens at a time.
As a result, I'm coming to the hypothesis that either my antenna has moved or my home's wiring is deteriorated... At this stage: either I call a technician or I try to convince my sweet one to go on the roof! The only problem is: what is the procedure for adjusting a dipole antenna?? (oh so clueless!) :)) Unless you advise us against it from the start...
In any case, thanks again!!!

No signal, check cable

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