The set top box only has a red dot on the power light, and the TV has no signal

The set-top box only has a red dot on the power light, and the TV has no signal Possible causes and methods:

1. The plug of the signal cable connecting the set-top box is loose or has fallen off.

Solution: Reconnect the signal cable to restore the signal.

2. The lid of the pot is shifted in the direction of the satellite or the high-frequency head is broken.

Solution: You need to adjust the position of the lid of the small pot accurately or replace the high-frequency head.

3. There is an obstacle in the direction of the satellite where the lid of the pot is aligned.

Solution: Remove the obstacle so that the direction of the lid is kept open, and there should be no obstruction.

4. The signal demodulator of the set-top box is broken.

Solution: Ask a professional to replace the signal demodulator.

5. The plug of the network cable connecting the set-top box is loose or has fallen off.

Solution: Reconnect the network cable to restore the signal.

Telecom seems to have a special protocol for set-top boxes.

If you change the route, the set-top box will not be available.

You can try it with the 2L method.

Try a different set-top box.

If it is normal, it is a set-top box failure.

If you still can't see it, it's a signal problem.

If I don't have a set-top box, I have one extra one.

You can come to me.

Other. Find the set-top box model.

Go to the set-top box settings.

See if there is a problem with the network settings of the set-top box.

In fact. You can just ask me this kind of question.

My dear wife ...

It's so stupid that you didn't even say that you were IPTV or radio and television.

How can there be an accurate answer here?。。。

There are four reasons for this.

First, the set-top box has poor contact with the data cable, including the data cable connection between the TV and the set-top box, so that there is no signal input to the TV.

Second, the data output signal of the TV station is broken, you can see if the TV next door has a normal signal.

Third, the smart card has poor contact or is not inserted properly, and the insertion is incorrect.

Fourth, the set-top box is broken.

In this case, it can only mean that the signal source of your set-top box has no input signal, you can check whether the cable TV cable connected to the set-top box is loose.

If it is a smart or network set-top box, check whether the network connection cable or wireless connection network has been connected.

In this case, first check the set-top box and the high-frequency head, whether the connection line is well connected, if you are sure that it is good, then see whether the orientation of the small pot is aligned, turn the direction to try, if necessary, adjust the elevation angle and change the high-frequency head to try.

The set-top box is "hanging"! If the set-top box and TV are connected correctly, good! It can only be that the set-top box is broken! You first check the "data cable" connected to the TV, if the connection is fine! The problem is in the set-top box!

To solve the set-top box fault first. Normally, the red light should be on first, and after a while, the green light can output the signal to the TV normally!

Summary. 1.The connection between the set-top box and the TV is unstable:

Please check whether the connection between the set-top box and the TV is firm, and make sure that the connection ports are not loose or falling off. 2.HDMI interface signal transmission error:

Please check whether the HDMI cable between the set-top box and the TV is in good contact, or replace an HDMI cable and try again. 3.Problems with TV sources:

Please check that the TV has selected the correct signal source, you need to select the correct input source in the TV menu settings. 4.Set-top box failure:

The set-top box lights up and the TV has no signal, and there may be the following situations:

Can you add, I don't quite understand it.

1.The connection between the set-top box and the TV is unstable: Please check whether the connection between the set-top box and the TV is firm, and make sure that the connection ports are not loose or falling off.

2.HDMI interface signal leakage transmission error: Please check whether the HDMI cable between the set-top box and the TV is in good contact with the spine, or replace an HDMI cable and try again.

3.TV source issue: Please check if the TV has selected the correct source, you need to select the correct input source in the TV menu settings.