Faulty Coax Input on TV?

Aug 21, 2018
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Hello,

I believe I have a faulty aerial input on my tv. When I plug the coax cable in, digital tv is either snowy in the case of Sky or unavailable in the case of free HD tv. Free analogue tv is fine. I have tried a different coax cable to see if that fixes it but there's no difference.

My setup is Sky+tv in the living room which works fine. In my kitchen I have a Sky magic eye and connection via coax to the Sky box in the living room using a two input analogue connection box. This works fine. In the bedroom it is the same setup as the kitchen but it is problematic as described.

If I put pressure on the coax where it plugs into the tv I can get a good signal for Sky and access to free HD tv is restored. As soon as I stop pressing, the Sky signal goes snowy and free HD disappears.

The tv has worked fine for a number of years.

I'm pretty sure this means the connector in the tv has a problem but I'm going to struggle to get it to a tv repair place and I was wondering if anyone might have some advice for me.

Many thanks,

Mark.
 
Solution
The antenna connection may not be repairable since it is often welded to the tuner module. If they try to repair it with solder it breaks again since solder doesn't have any mechanical strength.
That it improves when you put pressure on the connection at the back of the set, it's worth trying to improve the connection.

Switch the set off then a use a pair of long, pointed nose pliers to close the central ring of the female connector on the set.
 
If you already know is not the cable itself, then it's the connector, nothing to do but let the Pros look at it.

Modern TVs, with all the new blinks are not built sturdy like they used to. The jack is often soldered to the circuit board behind with no additional physical stress relief so if you are not careful with it.....
 

clarkjd

Distinguished

Where did you get your coax cables? If you made them, it is possible that the connectors were not installed properly.

 
Aug 21, 2018
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Thanks for your replies. I'm convinced it is the connector in the TV and I thought Saga's suggestion had fixed it but on the third time of switching the TV on, it was snowy again so... I recognise that it may not be something I can fix. I have for now rather bodged it by putting a rubberband around the cable close to the TV and hooked it onto the corner of the telly to put pressure on it. This seems to have sorted it for now but I appreciate the comment that the stress may make it worse. If and when it does, I'll take it to a repair shop as advised.

Thanks again for your replies, I really appreciate your opinions and suggestions.

Regards,

Mark.