Antenna power supply goes out - no signal. In a few hours it lights up again.

Question

I have no idea what's wrong. Mesh antenna, plug-in power supply, cable well machined, there is no right to be short-circuited and yet there is a problem. The power supply goes off by itself, i.e. the LED goes out, after a few hours or even a whole day it lights up and everything returns to...

Krzysztof Kamienski · Accepted Answer

Disconnect the power supply for some time from the DC separator (i.e. power connection with the antenna cable). What will happen then? You will get information whether the problem lies in the power supply itself or in the antenna installation. Do you have a multimeter? And one more thing - there is a capacitor in the WCZ / DC separator itself, and a short-circuit choke at the TV's input. The capacitors in the separators are of low quality. They can play such pranks. So also disconnect the antenna cable, but from the TV and watch.

DiZMar · Accepted Answer

If the power supply is warm, then you get a short circuit somewhere else. It is possible that the previously shown point or when connecting the cable to the amplifier. Maybe a cable connected with a window connector? They can sometimes close. When the power supply is off, disconnect the antenna cable from the plug in the photo. If it still does not light, there is a fault in the plug (indicated square?) Or it interrupts one of the black wires from the power supply to the antenna plug. If the fault lights up, the antenna cable-antenna amplifier section.

Added after 55 [seconds]:

UPssss ..
I'm a little late.

arturdip · Accepted Answer

If it's an old cable, it can crack and short-circuit. As someone wrote before, disconnect the antenna and you will at least know if it is not a damaged cable. Item Arthur

DiZMar · Answer

Apparently the hair from the braid of the cable in the antenna plug or when connecting the amplifier in the antenna sometimes short with the middle vein. That's the whole reason. Well, possible but unlikely damage in the power supply. In total, detection is a matter for even a beginner.

mocny2_3 · Answer

I can take a photo of the plug and ask for advice if everything is OK.

DiZMar · Answer

The fault does not always occur. Pictures will give nothing. Visually it will be fine but you need to review as I wrote. Alternatively, disassemble the power supply and look for cold soldering. Is it warm or cold after a few hours when the power supply lamp is off?

mocny2_3 · Answer

I have already made this complaint, it is so lukewarm but it certainly is not clearly warm.

wojtek1234321 · Answer

And sometimes there is no here cause, somehow this February looks suspicious in this plug, maybe sometimes they make a short circuit when they heat up.

LeDy · Answer

February beautiful, I don't know what you don't like about them? Same with this hair? It moves itself and it does itself short once and not once? This is most quickly something in the antenna amplifier - raid, tarnished or some C. See, replace the amplifier. Well, unless something with the power supply or power supply.

wojtek1234321 · Answer

You are right, I do not know enough, but exactly I meant this place (green arrow) do these two soldering places do not come together sometimes (from the photo it looks like this, or maybe it has to be? )

mocny2_3 · Answer

The power supply is still warm, however, the LED is off

Krzysztof Kamienski · Answer

@ mocny2_3 Is it working? Is the amplifier working? Is the signal correct for the TV?

mocny2_3 · Answer

Signal from 0 to 20%, signal quality of course 0. That is not In a few hours he will probably visit him, the diode will light and everything will start working. I do not know what's going on.

mocny2_3 · Answer

Thanks gentlemen, I disconnected the antenna from the plug and the diode still does not light. I guess the power supply is the culprit.

Krzysztof Kamienski · Answer

And the rest from the TV? I wrote you how it works.

DiZMar · Answer

The exchange costs 5-10 PLN but it is New Year's Eve ... although repair as I wrote earlier should not be a problem.

mocny2_3 · Answer

But how about the rest? I pulled the cable out of the power supply plug and that's it. The power supply is now separate and still the LED is off.

DiZMar · Answer

After all, he disconnected the antenna cable is what it's all about the rest of the TV ? I think it has the TV plug out ...

Krzysztof Kamienski · Answer

Now you know - the power supply is damaged.

Antenna power supply goes out - no signal. In a few hours it lights up again.

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