55 LED Smart TV Dims Intermittently When Lights Turned On: Wi-Fi, NC+ Decoder Issue?

Hello, I have a 55 "led TV with wi-fi connected to the nc + decoder and such a problem that started recently. It did not occur before. O Namely, when I turn on the light in the bathroom or on the terrace, the TV dims for a moment (the picture disappears and appears). It happens once in a while, sometimes it fades and sometimes it's ok and I don't know what's going on. It was okay before, I wonder if it's not the fault of the smart function or maybe the decoder? I don't know, so maybe you have any ideas?

paradox2604 wrote:

namely, when I turn on the light in the bathroom or on the terrace, the TV dims for a moment

And what is the light source there - what kind of light bulb: LED, fluorescent ...?

Everywhere in the house there are LEDs, rooms, bathrooms, terraces, etc.

Added after 2 [minutes]:

Somewhere I read that it could be a coil or something like that on a TV or decoder and it is already dead, but I ask you specialists.

paradox2604 wrote:

Everywhere in the house are LED rooms, bathrooms, terraces

Then dial it one by one and check when the TV is okay.

But what's the light for sockets? After all, this does not happen every time, only occasionally, I also have a second TV without the smart option in another room, but everything is ok there.

paradox2604 wrote:

but what's the light for sockets?

And this light (bulbs) is not your electricity supply?

paradox2604 wrote:

it does not happen every time, only occasionally I also have a second TV without the smart option in another room but everything is ok there

What are the bulbs, what manufacturer, original or counterfeit, where and from whom are they bought?

You have no idea how many LED bulbs can make a fuss.
You do not want to check - the glass ball is on vacation, so there is only an electrician left and you invite him to your home to check the electrical installation.
Electric sockets may also be to blame.

An electrician checked everything on delivery, so it was ok, but I'll do as you say. I will check the bulbs because it happens occasionally, only when I turn on the light in the bathroom or on the terrace. Standard bulbs, probably Chinese, bought from Leroy.

paradox2604 wrote:

an electrician checked everything on delivery, so it was ok

How many years ago was it, did you already have these LED bulbs?

a year ago, when I checked I already lived, everything was like now except the TV

Added after 14 [hours] 6 [minutes]:

Ok, I did a quick experience, I turned off the set-top box and turned on the TV itself and now there is a situation when I turn on the light on the terrace, sometimes the image on the TV dims but does not turn off as it happens with the set-top box turned on

It is similar with me, only in the end the TV set landed in the service ... I plan to buy a good extension cord with a filter and overvoltage protection, replace the connectors in the lighting circuits (maybe the contacts are burnt out and there are surges). RTV service suggestion replace TV cables with me HDMI ... I'm waiting for what you find in yourself.

I will also check the hdmi tomorrow, I will let you know

Well, the matter cleared up, a very simple matter. This is what this forum is for to solve such problems and not to write that the guilty party is "Miecio handyman". The HDMI cable was damaged.

Already, I am slowly getting clearer, today I tried on another HDMI input (for me it is HDMI 2) to which I have a console connected and nothing is happening here, i.e. the fault is either in the HDMI cable from the TV or the HDMI1 input or the decoder will buy a second HDMI cable and connect it from the decoder to the tv then we will see
as for the "city", I already read a lot of topics on this web page and in fact always check the electrician first apparently there is such a mentality that all that is bad is the fault of the guest who did the installations

This is the fault of the interference. More than once I have seen similar phenomena, e.g. loss of image on the monitor, e.g. when connecting a laptop power supply. Switch-mode power supplies have large capacities and such a phenomenon may occur when they are turned on.
Of course, the better the HDMI cable and the better shielded, the chance for something like this becomes smaller and smaller.

robsonsw wrote:

The HDMI cable was damaged.

If damaged, how could it cause interference ...
Either it works or it doesn't work - everything is zero-one here.

paradox2604 wrote:

as for the "city" I have read a lot of topics on this website and in fact, always check the electrician first, apparently there is such a mentality that everything that is bad is the fault of the guest who did the installations

Only my colleague forgot to notice that in many cases this "Mieciu" becomes indispensable anyway - and hopefully in the case of my colleague it would end up with replacing the HDMI cable (although I doubt it, because the HDMI controller in the TV is the same for all ports).
Please also remember - we help REMOTE and we only suggest what someone describes to us, so each variant is possible and it is mentioned in order to exclude it (confirm) - no one is a fairy here and will not give you a ready answer, nobody knows and sees what and who was doing.
With this HDMI it CAN! there may be the right track, but it does not have to be - which is also confirmed by many topics.
You believe what you want to believe.

If the device and their chassis are on different potentials connected only to HDMI, miracles can happen through ground loops in the receiver itself.

Thanks a lot for the hints, today everything will be explained, I have a second cable and I am already dismantling the TV
Added after 1 [hours] 26 [minutes]:
OK, everything is clear, I replaced the hdmi cable and it works without any problems, no interference, the old cable looks flawless, no visible damage

Hello, my new Hisense 42" UHD 4K TV dimmed after turning on or off the light in the bathroom, when the compressor in the refrigerator finished working, and the spark from the gas stove ignited the gas. After reading these posts, I bought a Baseus HDMI 2.1 8K 60Hz cable and the problem disappeared. It turned out It turned out that the old HDMI cable was no longer able to cope. The dimming problem disappeared.