What does the digital TV set top box refer to when the yellow light is on?

Usually, the red light represents the power supply, and the red light does not turn on the power supply or the power module is broken. There is also a light yellow light and a green light representing signal locking. That is, the set-top box (STB) high-frequency head locks the level signal of a digital channel, according to the STB standard, the digital TV signal level is about plus or minus 20dBMV (40 to 80dBV), STB according to the storage information after searching for the program, first adjust the high-frequency head to the target channel (see China's CATV channel list planning, basically adjacent to 8MB200-860MHz) If the level is too low, the channel is not right, and the high-frequency head is bad, it will lead to a yellow light and a green light that is not on.

For example, in the past, CCV1 was at 522MHz, and the frequency changed after your operator upgraded, and there was nothing at 522MHz, so if you didn't update the program list information, you would change to 522MHz without a level and the yellow light would not be on. ）

The TV set-top box has been showing the yellow light Hello dear, the yellow light is the indicator light of the signal. Therefore, the yellow light is on, indicating that the set-top box has received the signal, and the cause of the fault may be 1. The signal input port of the set-top box is in poor contact with the external signal wire or is not connected, resulting in the yellow light not being lit, at this time, you only need to re-insert the external signal cable into the signal input port of the set-top box, and fix it to normal. 2. The external signal line connected to the set-top box is interrupted or the server failure causes no signal transmission to the set-top box, in this case, you can contact the local TV service provider to inform the fault performance, and then the other party will check the fault point and solve the problem after repairing the fault.

3. The hardware failure of the set-top box leads to the inability to identify the input signal, such as interface failure, internal circuit failure, motherboard chip failure, etc., which needs to be solved by contacting the after-sales service of the set-top box for a comprehensive overhaul of the set-top box. I hope my answer is helpful to you, and finally I wish you good health and a happy mood again!

Restart the set-top box and try again, if the set-top box is still only the power light on, and nothing else is displayed, it means that the set-top box is faulty, and you can replace it in the radio and television hall.

Development In 2010, China's digital TV set-top box industry entered the boom cycle of market restructuring and in-depth development. 2010 is a year of rapid development of China's digital TV set-top box, and the industry market has developed steadily. According to the National Bureau of Statistics, there are:

In 2010, there were 317 digital TV set-top box enterprises above designated size; total assets of 100 million yuan; Achieve sales revenue of 100 million yuan, a year-on-year increase; The total profit was 100 million yuan.

If the signal indicator does not light up, it means that the set-top box has not detected the cable digital TV signal, and there are two reasons for this. 1.There is a problem with the cable TV signal, in this case, you need to check whether the cable digital TV signal line at home is connected to the set-top box to see if there is a place that falls off or has a bad contact, if not, you need to call the cable digital TV network company service ** to report for repair; 2.

The set-top box is broken, if this kind of problem occurs, you can take your own set-top box to the neighbor's house to try whether it really belongs to the set-top box is broken, if the set-top box is broken, take the set-top box after-sales service point for repair! On the contrary, it is not a set-top box problem, and it needs to be repaired by a cable digital TV network company.

Summary. The plug of the signal cable connecting the set-top box is loose or has fallen out. Solution: Reconnect the signal cable to restore the signal.

The lid of the pot has shifted in the direction of the satellite. Solution: You need to adjust the position of the lid of the small pot accurately.

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

The signal demodulator of the set-top box is broken. Solution: Ask a professional to replace the signal demodulator.

What's going on with the green light on the TV set-top box, 1The plug of the signal cable connecting the set-top box is loose or has fallen out. Workaround:

Reconnect the letter to the Signal Clan to restore the signal. 2.The lid of the pot has shifted in the direction of the satellite.

Solution: You need to adjust the position of the lid of the small pot accurately. 3.

There is an obstacle in the direction of the satellite. Solution: Remove the obstacle with Suiming, 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. Workaround:

Let the professional master replace the signal demodulator.

There is no pot, I pulled out the power cord and plugged it back in or it was a green light, it was a red light when it was turned off normally, the TV showed no signal, it was like it was stuck, and there was no response when I pressed the remote control.

Is the thread contact good?

If the contact is normal, you just accidentally sit on the remote control, and the set-top box will be evergreen, and you can't turn off by pressing the power button on the set-top box.

Is this also the case when the power is turned off?

Right. It may be caused by system problems, it is recommended to try to restore the factory settings first, if you can't restore it, flash or contact after-sales,

Summary. Hello dear. The TV set-top box keeps showing a yellow light, and the solution is as follows:

1.Check whether the power cord is connected properly and check whether the power plug is plugged into the power outlet; 2.Check if there is electricity at the power outlet, if there is no electricity, please replace the power outlet; 3.

Check that the power plug of the TV set-top box is plugged into an electrical outlet; 4.Check whether the power cord of the TV set-top box is damaged, and if it is damaged, replace it with a new one; 5.Check if the power button of the TV set-top box is pressed, if not, press the power button; 6.

Check whether the power button of the TV set-top box is damaged, if it is damaged, replace it with a new one; 7.Check whether the power cord of the TV set-top box is in poor contact, and if the contact is bad, please re-contact; 8.Check whether the power plug of the TV set-top box is in poor contact, and if it is in poor contact, please re-contact it; 9.

Check whether the power plug of the TV set-top box is damaged, and if it is damaged, replace it with a new one; 10.Check whether the power cord of the TV set-top box is damaged, and if it is damaged, replace it with a new one;

Hello dear. The yellow light of the TV set-top box has been on to indicate that the TV set-top box is starting,At this time, it can be used normally,But there may be some abnormal functions,It is recommended that you restart the TV set-top box,If the yellow light still appears after restarting,It is recommended that you check whether the power supply of the TV set-top box is normal,If the power supply is normal,It is recommended that you replace the TV set-top box。

Hello dear. The TV set-top box keeps showing a yellow lightThe solution is as follows:1

Check whether the power cord is connected properly and check whether the power plug is plugged into the power outlet; 2.Check if there is electricity at the power outlet, if there is no electricity, please replace the power outlet; 3.Check that the power plug of the TV set-top box is plugged into an electrical outlet; 4.

Check whether the basic power cord of the TV set-top box is damaged, and if it is damaged, replace it with a new one; 5.Check if the power button of the TV set-top box is pressed, if not, press the power button; 6.Check whether the power button of the TV set-top box is damaged, if it is damaged, please replace it with a new power button; 7.

Check whether the power cord of the TV set-top box is in poor contact, and if the contact is bad, please re-contact; 8.Check whether the power plug of the TV set-top box is in poor contact, and if it is in poor contact, please re-contact it; 9.Check whether the power plug of the TV set-top box is damaged, if it is damaged, please replace the new power plug of the key; 10.

Check whether the power cord of the TV set-top box is damaged, and if it is damaged, replace it with a new one;