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The indicator light of the green receiving signal in front of the TV set-top box is not lit, and the possible causes and solutions of the TV no signal: Satellite signal set-top box:
1. The lid of the pot is shifted in the direction of the satellite, resulting in no signal.
Solution: You need to adjust the position of the lid of the small pot accurately.
2. 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.
3. The signal demodulator of the set-top box is broken. Solution: Ask a professional to replace the signal demodulator.
4. The high-frequency head of the lid antenna is broken. Solution: Replace a high-frequency head to restore the signal.
5. The signal cable connecting the set-top box has fallen or is loose. Solution: You need to reconnect the signal cable to restore the signal. 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 cable at home is connected to the set-top box to see if there is any falling off or bad contact, if not, you need to call the cable digital TV network company service ** 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, and if the set-top box is broken, you can get the set-top box after-sales service point for maintenance.
The digital TV set-top box is to decode and restore the digitally compressed image and sound signals to produce analog and sound signals, and provide high-quality TV programs to the audience through TV displays and audio equipment.
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The reason why the set-top box indicator does not light up: first distinguish whether it is the power indicator or the signal indicator, it may be that the set-top box is faulty, or the signal cannot be received. The set-top box indicator light does not light up Fault reason:
1. Before connecting, you need to turn off the power supply at home to effectively prevent the risk of electric shock. Then insert the corresponding line into the hole behind the TV and the set-top box, one end needs to be connected to the TV, and the other end needs to be connected to the set-top box. 2. First of all, check whether the power indicator is not lit or the signal indicator is not on.
3. If the power indicator does not light up, it is likely that the set-top box itself is faulty. In this case, it is necessary to replace the set-top box with a new one. In addition, the antenna may be short-circuited.
It is necessary to check for line problems first, and then carry out maintenance. 4. The signal light is not on, then it is very likely that the signal transmission signal has not been received, and it is necessary to check whether the signal source is in a normal connection state. 5. After all the connections are completed, you can power up your home, and you need to turn on the power switches of these two things.
The whole connection method is relatively simple.
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If the wiring is loose, it may cause the indicator light of the set-top box to not light up. In addition, it may also be a problem with the cable TV signal, if the set-top box cannot detect the cable TV signal, its indicator light will not be bright. How to deal if the set-top box indicator light does not light up:
1. Check whether the cable digital TV signal cable is correctly connected to the set-top box, whether there is any falling off or poor contact, if so, you need to adjust the cable digital TV signal line, you can unplug it and re-insert it or replace it with a new signal line; If not, then it may be a problem with the cable TV signal network, and you can call the service of the corresponding cable digital TV network **company** for repair. 2. Confirm whether the set-top box socket has electricity, and then further check whether the power cord of the set-top box is hidden and whether it is connected correctly, if the power cord is found to be damaged or aging, it is necessary to replace a new power cord, if the power cord is replaced, after the power is turned on, the indicator light of the top empty box is still not lit, then it is likely that the set-top box itself is damaged, and it is necessary to let the after-sales personnel come to the door for maintenance or go directly to the after-sales outlets for replacement.
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1. It may be that the power connection cable of the set-top box is damaged or the power connection cable is aging, resulting in contact not rolling He Liang. 2. It may be caused by the failure of the set-top box itself. 3. It may be that the power plug of the set-top box is rusty, resulting in poor contact.
4. Caused by insufficient voltage in the family. Suggested solutions: 1. Check whether the power connection cable of the set-top box is damaged or aging, you can go to the Internet to buy the power connection cable of the same model of set-top box, connect the power supply and turn it on again, and test whether the problem is solved.
2. Use the corresponding screwdriver.
Open the box on the outside of the set-top box and check whether the motherboard inside the set-top box has any traces of burnout or looseness. If there are traces of burnout, you need to contact a professional to repair and replace it. If there is any loose place, you can use soldering to re-fix the height and prepare it, and re-energize the test.
3. Check whether the power plug of the set-top box is rusty due to long-term use. If there is rust, use sandpaper or a blade to remove the rust. 4. Electrical lead pressure gauge.
If the voltage is very low, it may cause the set-top box to fail to turn on normally, and you need to contact the local power supply company to solve the voltage problem, which can be done by adding a voltage station or improving the quality of the power delivered.
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1. It may be due to the fact that the TV signal-related equipment is not repaired for a long time, which leads to the problem of the TV signal being empty and affecting the set-top box light. 2. It may also be because the cable TV cable and plug at home do not form a good connection, resulting in the line falling off or short circuit. 3. Parts fall off or wear out a lot, which will affect the set-top box light not to light up.
Suggested handling methods: 1. The user should regularly conduct a regular inspection of the wired signal equipment of the set-top box, and it is recommended to check it once from 3 to 5 months to avoid problems with the streamlined signal equipment, which will affect the set-top box light and cause the light to not light up, and the TV will not turn on. 2、The user should turn off the main power of the TV in time and check whether there is any problem with other equipment of the TV.
If there is no problem, it is recommended to make a better connection between the wired signal line and the plug in time to avoid the set-top box light not lighting up because the connection is not available. 3、If the internal parts of the TV are lost or the parts are missing,Resulting in the set-top box light not lit,It is recommended to ask the relevant maintenance personnel Wang Ju to come to the door for a treatment and installation,Avoid various safety hazards caused by the user's own maintenance。 Issue.
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1. If the plug of the signal cable connecting to the set-top box is loose or has fallen, reconnect the signal cable to restore the signal.
2. If the pot lid is shifted in the direction of the satellite or the high-frequency head is broken, it is necessary to adjust the macro of the azimuth cavity of the small pot lid accurately or replace the high-frequency head.
3. There are obstacles in the direction of the pin cover of the pot and the satellite, and the obstacle is removed so that the direction of the pot lid is kept open, and there should be no obstruction.
4. The signal demodulator of the set-top box is broken, let the professional master replace the signal demodulator.
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If the signal light of the set-top box does not light up, it may be caused by the following reasons:1Power failure:
The signal light of the set-top box may not light up due to a power failure. You can try checking that the power cord is in good contact or trying to replace the power cord. 2.
TV setup issues: If the TV's input source is not set correctly, the set-top box's signal light may not illuminate. You can try to adjust the input source of the TV, or check if the set-top box is connected normally.
3.Faulty set-top and branch boxes: If the set-top box itself fails, the signal lights may also fail to illuminate.
You can try restarting the set-top box or contact 400-018-7131 to find a professional to repair it. If none of the above methods can solve the problem, it is recommended that you stop using the set-top box and contact 400-018-7131 to find a professional for inspection and repair.
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Cause of failure:1The TV source is selected incorrectly or the TV HDMI interface is damaged; wire damage; 3.The HDMI interface of the box is damaged.
Solution:1) Select HDMI input at the TV signal input, if there are multiple HDMI interfaces, you can choose different HDMI interfaces or replace the TV for testing;
2) Replace the HDMI cable for testing, if the cable returns to normal after replacing the cable, it is confirmed that the HDMI cable is damaged;
3) Take the box to the business hall to detect whether the HDMI interface of the box is damaged, if the HDMI interface is damaged, the standby machine can be replaced, and the terminal will be repaired;
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