Good morning all,
Last day we had an issue with a remote control that couldn't communicate with the STB.
After many attempts we found the issue. We realized that the power cable of the TV had a ferrite installed and that make us think. Is something like this:
A ferrite is a device (called EMI filter) that suppresses electromagnetic noise. I attach a link below that explains properly how this stuff works:
In other words, the TV’s motherboard had leaks that do electromagnetic noise (at high frequency) and that’s why the remote-STB IR link had interferences.
We checked it disconnecting the power from the TV and then the remote worked properly from the corridor!
There are 2 ways to fix it:
1-->Change the TV because is not healthy and could affect any electronic device around.
2--> Buy a new ferrite but it isn’t the best way and could not suppress that electromagnetic field.
Have a nice day!