When the antenna is connected to the cable, the power supply diode goes out

Question

Hello! I bought a Samsung LED TV yesterday, and a TechniSat antenna for terrestrial television, as well as a cable and power supply (also TechniSat). When connecting the cable to the DVB-T antenna, the diode on the power supply goes out, regardless of whether the terminal on the TV side is...

Anonymous · Accepted Answer

A diode going out in the power supply indicates a short circuit. Double-check the power supply-antenna connection again. Often, one small wire from the shield causes a short circuit. Do you have an amplifier on the antenna? Is the LED on without the F plug connected to the antenna? Show the photo of the antenna and the inside of the antenna box and the exact antenna model as you can.

TELMOR_PL · Accepted Answer

So the short circuit comes from the antenna side, maybe it is without an amplifier only with a balun? The balancer is a short circuit when we connect the power supply ...

fidotp · Accepted Answer

First you need to check exactly what you have.

LeDy · Accepted Answer

Crash the power supply, give the antenna plug and after a problem. There is a balancer, not an amplifier.

TELMOR_PL · Accepted Answer

Well, we have the culprit.
The question arises: why / who advised the author to buy an antenna with a balun and a power supply with a voltage separator?
And what is the location where this antenna should work?

fidotp · Accepted Answer

I have better specs around here. They claim that no antenna tile is needed at all. One by one they crawl onto the roof and disassemble the balancer, connecting the cable sharply.

TELMOR_PL · Accepted Answer

And who prohibits the rich ... maybe they have symmetrical cables of concentric cities In one case, the symmetriser plate is not needed, ... for the logarithmic antenna.

maniek1203 · Answer

I have checked the cable several times and the screen does not come in contact with the hot wire without the F plug connected, the LED lights up normally, the problem starts when I screw the nut into the antenna, I will send photos soon

maniek1203 · Answer

Is there any way to solve this?

maniek1203 · Answer

Antena techniYagi uhdt lte

maniek1203 · Answer

Thanks for all the advice, stupid advice was given by a saleswoman from RTV EURO AGD who claimed that she sells 5 such sets a day and it certainly works. The location is exactly Zubrzyca Górna, a single-family house, the signal I download from Gubałówka, found 39 programs of which 10 are Slovak channels (that's how it is with me ) The most important channels work fine.

mczapski · Answer

I can't resist asking where my colleague was connecting this power supply (where)?

I admit that I went a little hard because I haven't been with antenna amplifiers for a long time. I forgot about the separator, which will most often be at the antenna plug. A really aware seller will not sell such a set, or the purchase was made in installments.

LeDy · Answer

And this is not clear? . I take the correction for unprofessional terms.

Anonymous · Answer

Don't listen to these advices. It has the task of selling as much as possible.

TELMOR_PL · Answer

This is a good question, curiosity eats me up, but I don't know if we'll get the answer.
The ground is that the situation "mastered" and the system worked because he did not have to, the rather difficult area.
As for the saleswoman, we also sell through this network and I am afraid to think what these "experts" say to customers interested in buying equipment.

maniek1203 · Answer

what do you mean in which places? in one place, antenna cable to the plug from the power supply and all this from the TV side, contact power supply. How else?

When the antenna is connected to the cable, the power supply diode goes out

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