It happens that in the process of exploitation there is interference on the TV. They may look like multicolored vertical or horizontal stripes, noise, flicker. The overall quality of these problems - they interfere with viewing enjoyment and besides harm the eyesight. Therefore, many people are wondering what to do in case of their occurrence.
Certain types of noise can be eliminated independently, but in most situations have to seek professional help.
Before you fix the problem you must first diagnose it. In total there will be several types of defects:
- ripples hissed;
- noise;
- horizontal or vertical stripes on the TV screen;
- shiver;
- hum;
- grid on the display.
These issues are subject to the old CRT TVs and modern plasma and LCD panels.
Causes
Defects may cause external factors associated with the wires, and antennas misconfiguration and the failure of internal equipment elements.
internal defects
These problems manifest themselves in the form of ripples. There are internal defects in the following cases:
- if the inside of the machine is exposed to water or dust - then the display visible white point;
- when the TV is dropped or bumped during transport;
- using unsuitable cleaning agents;
- small colored dots may indicate a broken pixels, the likely cause is - a factory defect.
TV may fall, causing damage to the matrix. Then, instead of the image will be seen only black screen. The appearance of dark areas around the edges and the offset image in the Reds shades indicates a problem with the backlight module. If the chip is broken, the display may become gray.
Internal faults occur rarely. Usually it causes interference becomes damaged peripheral or communication problems at the provider.
faulty antenna
Ripples hissed and streaking horizontally signal on the antenna problems. They may appear because of bent wire or connector damage. To test the antenna, connect it to another device. You can also try to reset it and restart the receiver.
Wiring
The appearance of interference can cause deterioration of electrical wiring and power supply problems. In this case, the user will see a blue screen. Then, inspect all cables for damage or corrupt isolation.
Also, the reason may be the lack of ground - the display shows horizontal narrow stripes with blurred edges.
tangled settings
If vertical stripes, noise or ripples appear not on all channels, it is necessary to carry out an autotune. Rules of its implementation can be found in the instructions for the TV.
ISP problems
Due to technical faults on the broadcaster or service provider on the screen may be missing picture. To verify this, check the lights if the green light on the router. If not lit - call the provider's office and find out when the repair work will end.
external interference
The most common cause of noise and ripple - external interference. They can cause other radio devices, which are close to the TV. Wi-Fi router, a microwave, a computer - all of this equipment to its electromagnetic field may affect the operation of the receiver box. If possible, remove the source of interference away from the TV.
Repairs
Note that the antenna can only be repaired in the home. For more serious problems, call the master as a separate fix can make matters worse.
To replace the plug on the antenna cable:
- Remove the old plug.
- Strip the insulation from the wire to 1-1.5 cm.
- Attach the end of the new connector so that his body is not in contact with a central cable channel.
- Screw the connector to the new F-connector with the same thread size.
As a result, should get a reliable connection to the TV and TV set will cease to ruffle. In addition, place the electric cable and the antenna away from each other.
If appears on the TV interference, you must first determine the cause of their appearance, and only then fix the problem. It is important to correctly calculate their potential for major repair work best to attract professionals. Otherwise, you can only make the problem worse and significantly increase the cost of repairs.