Testing Cheap HDMI Cable Testers 

Thanks for the info :-)

My Mate VINCE No problem :) It all comes down to manufacturing cost, if the cable at that length works for 1080p without needing the extra shielding, the cheaper cables often omit it. As far as I can tell, that's what makes some of the HDMI cables you see much thinner than others. As you say, the cable is just a dumb pipe, it's just the quality of signal that reaches the other end that determines it's ability for a particular resolution/bandwidth. Filtering / correcting for crosstalk/data corruption it causes at 1080p (less data per second) is much easier than at 4K (more data per second).

en.m.wikipedia.org/wiki/HDMI#Cables short to read

@@Mymatevince probably cheap testers only test wiring continuity, more expensives ones could also test specs (speed of transmition, impedance of wiring and so on)

Very interesting reading. Thanks for sharing. So now there is a 48Gbps cable (Ultra High Speed) for 8K upwards :-)

To be fair, they are ripping you off trying to sell you HDMI cables for £20+ You can buy fully wired robust cables for under £10 and dead cheap working ones for £1. I've seen £40 hdmi cables in store and the salesman told me the picture would be a better quality. I laughed and walked away.

Ok

Excellent, glad you liked it and thanks for all the other views :-)

100% CORRECT. Those grounds are literally VITAL to get the signal across without crosstalk. They are required for shielding of the active conductors inside the cable... not just a commoned electrical connection.

He's passed the one-third-way mark by now. But yeah, totally agree that he deserves the remaining two thirds.

Totally agreed

Thanks for watching :-)

Yeah, definitely a good idea :-)

That is a brilliant idea!

Thanks James, it is a great idea. I fixed one of my dads remote controls a couple of years ago where the buttons weren't registering, all it needed was cleaning the contacts on the inside. If I come across the problem again then I will definitely film it :-)

Good Idea .... I don't even know how to open one of mine and the manufacturer has discontinued service, so I am out of ideas.

@@rocketrider1405 i replaced a couple of remotes about a year ago on ebay just find the model number on the remote and search ebay most that come up are chinese reproductions but they work then you have one to fix when old mate vince does a video to help to know what to look for to fix the original remote hope this help you cheers james D

@@Mymatevince i could send you a couple but i live in australia and the postage cost would be prohibitive and you dont have the device that its made for so testing would be impossible ...glad you liked the idea my old mate vince cheers james D

hey, that's worth a try ... thanks JD !

Hi, sorry I got confused. On this TV the HDR is called HDMI UHD Colour which is turned on. I can't remember when I turn it (UHD Colour) on and off if it looks any different on the top right info that the TV gives :-)

Thanks :-) Haha, oh yes the Wii U coat. I enjoyed that one a lot :-)

The other thing about ohms resistance testing is that it will detect copper vs copper plated aluminum right away. The only trick is you need to make a good strong contact to metal with good leads.

Thanks for sharing the info :-)

Thank you for the great info!

Thanks for sharing the info :-)

@@Mymatevince ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vIcXHWyExt0.html this is the symptoms i had that lead to me to think it was an issue with Onkyo amp but turned out to be the HDMI cable causing the flickering hope that helps others

Thanks for the info. I did wonder about them in the past and now I know. Thank you :-)

magnets1000 I’ve had pretty good experiences with cat6 patch panel cables at least 🤷🏻‍♀️

Hi there, I might try and fix one later tonight or tomorrow. Hopefully by the end of the week I should have another one live (don't know if I will be so lucky on the 3rd). Cheers :-)

My Mate VINCE Awesome looking forward to it! I’m sure you’ll sort the next one as well!

Hi, often on the HDMI Switch it has a option to power it via a 5V DC barrel jack. On the ones I have the PS4 doesn't even work on it unless I provide 5V into the HDMI Switch (I use a USB power supply). I am not sure if it will make a difference but maybe see if your one has the option for a power supply as it may be an easy fix to provide power into it.

R U SURE??? I HAVE A 'FAT' GRUNDIG CABLE BUT SEEMS FAULTY.

...What cable test fault/quality finding equipment do you recommend?...

That would only test the continuity of the cable. Signal strength is measured in dB, to get an accurate (not really necessary for consumer level equipment) measure of signal attenuation you would need a much more complex system (something that can measure the signal loss).

@@Fifury161 Ok, I see. So the wires must be carrying more than a on/off signal then? I thought they was just either 0 or 1s in a specific sequence or so to code the output honestly.

@@AleksanderFimreite Regardless of what HDMI does you can't test a cable with a power source alone to achieve the information you are alluding to... Simply using a voltage won't give you an indication of signal strength - there are a lot of complex physics involved (things like reflections and skinning to name a few). HDMI is a digital interface, therefore signal attenuation (loss) is less of an issue compared to an analogue signal. (Check out the pinouts - it uses differential signal pairs to compensate for attenuation). Over short cable runs there would be little perceivable picture quality difference between a working HDMI pound shop cable and a crazy expensive "Monster snake oil" branded HDMI cable. Try testing it yourself - remember we are discussing HDMI cables & signals, analogue signals work differently. Note also that whilst HDMI signals are ultimately 0s &1s they are usually transmitted as packets of information rather than a pure on/off signal - this was by design for several reasons - the main one was for content protection, another was to allow for additional information to be carried (such as CEC, USB & Ethernet).

maybe they just connected all the ground points internally in the tester, just as Vince showed with the cable connected. so that if one was working, they all would show working to prove you had ground.