The TV is blinking
Modern TVs are reliably protected from various types of breakdowns; it would seem that manufacturers have provided all the possibilities. Therefore, users are surprised when visible malfunctions occur. After all, this is the type of equipment that can be simply turned on and off without much fear or strain on the TV itself. But sometimes the screen begins to flicker, the image constantly blinks, flickers, and viewing becomes impossible. This is a rare but probable failure that occurs for a number of reasons.
The content of the article
Why is the screen blinking?
The reasons for this type of malfunction depend on the type of TV receiver. The assortment is represented by a wide variety, among which there are both the latest and already outdated models. And if the appearance of a defect on older types of TVs is quite justified, then on modern ones it is an ambiguous problem.
Common types of breakdowns:
- CRT TV - failure in frame scan or power board.
- LCD - power board.
- plasma - incorrectly configured antenna, intermittent reception signal.
REFERENCE: Plasma TVs are characterized by a stable picture, therefore they are most unlikely to have a bad image. Often the reason is external, so you should check the cable and antenna, not the TV.
technical issues
Most problems cannot be fixed on your own; you will need to contact a service center. Therefore, it is recommended to call a teleworker if problems arise, and not try to fix everything - this can cause more damage to the board.
Before contacting, you can try to determine the problem, but under no circumstances repair it. The following signs will help to carry out the initial diagnosis:
- The screen continues to flicker when viewed via a TV cable, but when connected to the Internet (in modern models), a stable picture remains - a defect due to the antenna.
- If the satellite TV image blinks, cloudiness is most often to blame, and this is a one-time phenomenon.
- The cable sockets are faulty. The quality of the output image is significantly reduced and flickers if there is a failure in the cable connections. The nest will have to be completely changed.
IMPORTANT. Replacing such a part is a complex process, since due to the small size of the field being repaired there is a high risk of damaging adjacent components. Therefore, turning to professional craftsmen is mandatory.
- If the flickering is stable and repeats with some frequency, then the problem is definitely in the power board. Typical for LCD TVs.
It is imperative to take into account weather conditions, as well as calculate the frequency of blinking of the picture - this information will help the technician deal with the problem more effectively. If the TV screen flickers continuously, then most likely the problem lies in internal parts.
ADVICE. When the problem has just arisen, it is recommended to disconnect the TV from the power supply and turn it on only after 30 minutes. If the problem persists, you should contact a technician.
Problems with TV signal quality
The problem is external if flickering appears after connecting any cable to the receiver. The reason in this case lies precisely in the junction. The following defects are identified:
- Antenna malfunction.
- Broken cable insulation.
- Receiver failure.
The given parts and equipment are tested to eliminate the cause of the problem.
If you have satellite TV
Satellite broadcasting is set up using a TV, receiver and antenna. The provider's dish or cable is used as a source. The receiver decrypts the received signal, transmitting the picture. Problems at any point in the signal transmission chain will lead to screen flickering and distortion of the displayed picture. The occurrence of other problems cannot be ruled out.
TIP: When using the services of a satellite TV provider, you can call a hotline. The operator will help determine the cause of the problem by conducting joint diagnostics with you.
Another way is to simply unplug everything from the TV. If the defect persists, it means there are external problems and the cable needs to be replaced. But only a master can fix the receiver, because the defect is most likely in the receiving module.
What may cause interference if you have cable TV?
In this case, there are even fewer options - you need to inspect the cable for mechanical damage. Then you just need to call the provider’s office and call repairmen. In addition, it occurs due to a defect in the plug - the defect can no longer be dealt with on your own.
Analogue and digital TV
The problem is most likely with the antenna since it has electronic readout devices. It's easy to check - you just need to move or turn off the antenna.If the flickering does not go away, you need to test the cable - by unplugging it. Replace the part if a problem is identified.
Separately, it is worth noting that in some cases the image flickers on new TVs. Most likely, this is a manufacturing defect that cannot be corrected on your own. You need to contact the store and exchange the equipment according to the warranty period.
Problems with the image are not at all uncommon for TVs, but the reason is almost always external. Therefore, for diagnostics, it is better to call a teleworker; he will quickly find and eliminate the cause without much expense.