Question HDMI socket on TV fails regularly ?

Jan 13, 2024
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Hi Everyone,
I'm new to the forum so apologies if this has already been asked and sorry for turning up with a question but I can't find anything on the web so this seemed a good place to get advice.

My problem is this: Over the past couple of years I have binned about 4 TVs (Sharp, Grundig and today a Hitachi) the oldest of which was only 7 years old: all working perfectly well except for the HDMI sockets which no longer recognized a signal. These TV's were connected to different sources (PS4 and a PC mainly) and whatever the problem was it killed all the HDMI sockets on the TV and not just the one that was connected.
I can confirm that the HDMI cables and the PC/PS4 are still working on other TV's so I'm forced to conclude that the TV's are failing.

Has anyone else had this problem? Are HDMI sockets on modern TV's fragile? The cables were for the most part left connected so I don't think it is down to excessive wear and tear which would probably only affect one socket in any case. Is this the kind of thing that can be repaired by a competent person?
Any help or advice would be gratefully received.
Dave
 
Question:

What else is common to the failed TV's?

Are there any sort of loops involved in the connections?

E.g. Device A connected to Device B connected to Device C connected to Device D connected to Device A again?

Sketch out all devices including electrical, video, and audio connections.

Can you find or trace any loops?

You did use the plural "cables" but was the same HDMI cable being used for all of the affected TVs?
 
Thanks for the reply.

No loops as far as I can tell... I mean there's the National Grid... but basically just a TV connected to a PS4 or a PC, in fact two different PC's and a laptop now that I think about it. The Hitachi that has been slowly failing for some time used to be connected to my laptop and a PS4 at the same time without any problems. The failures are gradual rather than sudden with intermittent behaviour for many months prior to it becoming unusable.

The only thing they have in common is that selecting any of their HDMI ports as source gave a 'No Signal' screen even when there was a signal present as confirmed by the same cable in a different TV. I suppose it is not impossible that a 'rogue' cable may have been used on each of these TV's at one time or another but usually they were in separate rooms connected to different sources.

*** Just a thought ***
The two tower PC's that I mentioned were built by my partner's oldest son who is big into gaming. The GPUs he put in were his old stock and, while usable, are probably obsolete by today's gaming standards. I don't suppose there's any way that these cards could be running too 'hot' for a common or garden TV?

Maybe I've just been very unlucky but the regularity has flipped my coincidence switch and it is costing me a small fortune in TV's.
 
Probably the kid is plugging and unplugging HDMI cable all the time.
Possibly yanking the cable, tripping over it ,etc.
Those HDMI ports are not very sturdy.
I had thought that, but I set most of it up and it stayed put for the most part. It might also affect that particular socket and possibly not lead to a gradual deterioration of all the HDMI inputs.

I've got to conclude, based on the lack of respondents with similar issues and the fact that search engines are unaware of this problem that it is something that we are doing that is causing this so I have found an answer in one way or another.

Thanks for the help in any case :)