There is sound but no image in the satellite set-top box. What is the problem? 1. Check the audio and video cables to see if they are connected incorrectly or if there is any problem with the quality.

2. For a large pot, the angle may not be accurate yet, please adjust it slightly.

3. Check whether the TV format is always or both on automatic with the receiver.

4. Check whether the received radio program is not a TV program.

5. Whether the TV is set to Xiaoyaoyuan listening mode.

14. The TV and the set-top box are well connected, but there is only sound but no image. What is the problem?

The connection between the TV and the set-top box is intact, but there is no image, only sound. Possible reasons: 1. There may be loose soldering in the circuit board, which causes the circuit to work abnormally and there is no image. In this case, the picture tube of the TV case will usually flash when you tap it.

move.

2. The high-voltage cap on the picture tube (such as accelerating electrode voltage, filament voltage, picture tube high voltage, video amplifier circuit medium voltage, etc.) is broken, resulting in no image. It is often encountered in some humid weather that there will be a sound inside the TV when the TV is turned on.

The continuous "squeaking" sound is caused by the discharge between the high-voltage cap and the toner coating. Over time, it will burn out the high-voltage cap and cause no image.

3. It is possible that part of the circuit of the high-voltage package in the TV is broken. If the high-voltage package is broken, the picture tube will lose the high voltage and of course it will not be able to produce images.

4. If the power supply for the circuit circuit is broken, it will also cause the high-voltage package to not work and there will be no image.

5. Black level clamping circuit (available on some TV sets).

6. The video cable connecting the set-top box to the TV is not connected properly.

Solution: Reconnect the video cable between the box and the TV.

What should I do if the set-top box only has images but no sound?

Check the connection between the audio output of the set-top box and the audio input of the TV, and adjust the audio mode of the TV appropriately or adjust the audio volume of the TV. Check the manual of the TV.

1. If it is an ordinary video cable, it should be divided into three connectors, red, white and yellow. The red and white lines are left and right audio, and the yellow is video. If there is no sound, check whether it is plugged in incorrectly or whether the line is broken; 2.

If it is a high-definition line, since there is only one line for synthesis, we can only use another line to arrange the Forbidden City.

1. Check if the TV is muted. 2. Check if the set-top box is muted. 3. Check if the connection is correct. Try changing the cable. 4. Change the box or TV to see if the problem is with the TV or the box. After you have determined whether it is the TV or the box, you can solve it yourself.

If not, send it for repair.

When watching a live broadcast on a Huawei set-top box, there is only sound but no image. If this problem occurs when using the player that comes with the phone, it may be because the video player program has a large cache. You can clear the cache in the phone manager.

Open "Mobile Manager > Accelerate Cleanup" and clear the cache.

Clear video app cache.

Open "Settings > Application Management > Video > Storage > Clear Cache"; or go to "Video > My > Settings > Clear Cache".

If the problem cannot be solved, back up important data and restore the phone to factory settings.

There is a signal from the Huawei Satellite set-top box, but there is no image. How to set the settings. The possible reasons why the Huawei Satellite set-top box has a signal, but the image is not available: 1. The TV is switched to another signal source and the video signal output by the set-top box is inconsistent.

Solution: Press the "Source" button on the TV remote control and switch to the video source consistent with the set-top box.

2. The set-top box is not turned on, resulting in no image and sound output from the TV.

Solution: Just turn on the set-top box.

3. The video circuit of the set-top box is abnormal, resulting in no image output.

Solution: Check the video output circuit of the set-top box and repair it.

4. The video cable connecting the set-top box to the TV is not connected properly.

Solution: Reconnect the video cable between the box and the TV.

5. The backlight of the TV screen is broken or other special circumstances.

6. The screen driver circuit inside the TV has a fault caused by weak soldering.

7. The circuit that controls the high-voltage board switch on the AD board in the TV is burned out.

Solution: The above three points require professional technicians to disassemble, inspect and repair the TV. If the TV is still under warranty, send it to a TV brand repair shop for warranty.