No image on tv. There is no image on the TV. Troubleshooting methods
The problem of a distorted image or its complete absence is one of the most frequent malfunctions of modern TVs, and neither the brand nor the TV model plays a role.
All because the main reasons for the lack of image on the TV screen, these are mechanical damages (drops, impacts), physical malfunctions (moisture, sunlight) or manufacturing defects. From these troubles can not be insured.
When there is no breakage
The reasons why there is no image on the TV screen is very lot. To find out which of them caused a malfunction, the TV will have to completely disassemble. For a non-professional, this is not only difficult but also dangerous!
When you try to repair the TV yourself, you risk this technique (non-professional actions can lead to the final breakdown) and your health and even life!
The only problem that can be solved independently is the situation with the appearance of the image with the manufacturer's logo after turning on the TV on its screen. This suggests that he himself crane working! The problem must be sought not inside, but outside.
If, including the TV, you first see the manufacturer's logo, then a dark screen, but there is sound, check:
- reliable connection of the receiver cord,
- reliable power cable connection
- the integrity and quality of the wire (especially if you have HDMI).
All wires from and to the TV must be securely connected to it. In the event of a malfunction or defect, they are replaced by new ones.
Professional repair Your TV needs if:
- The image became one-color.
- The image lacks a single color.
- On the screen is a vertical or horizontal bar.
- Only half of the screen is displayed (lower or upper).
The screen glows, but does not show (there is sound at the same time).
The screen is not lit (the sound is there or periodically disappears).
In all these cases, call to your home at any time convenient for you certified master AllRemont24!
An experienced master will quickly and efficiently carry out first diagnostics, and then all the necessary repairs or replacement of non-working parts with new, original and certified ones.
For all types of repair work and installed parts you will be given a guarantee.
The TV could break:
The problem of lack of sound in the presence of images on the screen is faced by the owners of TVs of various brands and models.
Regardless of the price and quality of the TV, the sound system in it is usually stable for many years. Recently, however, the problem of lack of sound has become noticeably more relevant. There are many reasons for this, as well as the causes of the malfunction itself.
Attention!If your TV suddenly stops sounding during operation and you can clearly feel the smell of burning, immediately remove the plug from the outlet! Probably burned the chip. The whole TV can catch on fire, and the old one in general can explode!
If you turned on the TV, but there is no sound, first of all, eliminate the simple mistake and check volume settings. Using the remote control, increase the volume.
If this does not help, then either the TV or the remote control itself is faulty.
In the case of the remote potential problems are smaller and they are solved much easier. Sure to check:
- did the console break down mechanically
- do not stick buttons,
- whether there are batteries in it, whether they have not sat down, whether the polarity is observed.
It will not be superfluous to clean the console from dust and dirt inside and outside. Most likely, having made these actions, you will repair the panel. In particularly difficult cases, professional repairs remote or his replacement on new.
After the remote control is diagnosed, proceed with the inspection tv set Are there any mechanical damages, cracks, chips and so on? Perhaps he fell, water got into it or another trouble happened?
Mechanical breakdowns of televisions are eliminated. replacing this or that broken part on the same new one.
If you find nothing, try turning the TV off and on again. No sound anyway? Connect to TV headphones or speakers.If the sound is reproduced through them, it means that the deadline is damaged or simply fulfilled. speakers tv set
If you have a new TV, it is possible that the speakers were initially installed low-quality or defective.
If you don't hear the soundtv in headphones or speakersconnected to it are possible three options:
- Incorrect connection (often observed when using an HDMI cable).
- Connectors are loose or worn, contacts are loose. In this case, the sound often appears and disappears if you touch the cable entry point. In any case, the need to replace the connector.
Faulty cable.
There is often no sound because of the wear of contacts and connectors, as the owners of various types of gadgets (laptops, game consoles, video cameras) like to connect them to the TV (especially if its screen is of impressive size).
Worn connectors, poor connections and faulty speakers also cause a lack of sound. in the first few minutes after turning on the TV (when the image is already there, but there is still no sound).
Often, TV owners are not worried about the absence, but quiet sound. In this case, the problem lies in the settings of the equipment connected to the TV, in the radio channel, TV processor and other details. For example, the memory could be lost.
In all these cases, diagnostics and professional repair are needed.
Diagnostics for customers of the VseRemont24 service center is carried out by a certified and experienced master absolutely free of charge. The cost of repair depends on its complexity, as well as on the model and brand of the TV being repaired.
Diagnostics and repair of LCD TVs require special equipment, which almost completely excludes the possibility of carrying out a high-quality repair of LCD (LCD) TVs "at home". Be sure to contact the service center. The main reasons why your LCD TV will need to go to repair, are a significant weakening of the brightness of the image displayed on the LCD screen and the breakdown of the decoder. Very often, LCD TVs need to be repaired due to the appearance of “dead” pixels on the LCD screen (their color does not change). In such cases, a complete replacement of the LCD matrix is necessary, which is quite expensive and, in some cases, is comparable in price to the purchase of a new TV. When choosing a TV, you need to know that the image quality of LCD TVs is almost independent of the type of matrix. And their repair, in the event of a breakdown, is almost the same. In order for the owner, making a decision about the need to repair the LCD (LCD) of the TV, before contacting the service center to preliminarily determine the possible malfunction of the LCD TV, we bring to your attention the following list of their typical malfunctions with indication of possible causes:
The appearance of "snow" (interference) on the screen. Check the antenna. If everything is all right with it, then the tuner or radio channel may be faulty; Simultaneous loss of image and sound. Possible reason - a radio channel is faulty (video processor and tuner); Only the image disappeared (there is sound). In this case, the color block or the video amplifier may have failed; The loss of sound while saving the image tells us that there may be a malfunction of the sound processor or low-frequency amplifier (ULF); When the TV is running, we have a horizontal bar on the screen or the screen and image sizes do not match - most likely the frame scan failed. (the cause is frequent power surges in the network); A failed downstream transformer will indicate this by narrowing the image from top to bottom and the presence of a vertical strip on the screen; Malfunctions in a video amplifier or video processor are manifested in the disappearance of a color or, conversely, in a full monochrome fill of the entire screen.
The condition that ensures long-term operation (without breakdowns) of an LCD television is the care for it and the implementation of the recommendations set forth in the technical documentation. To prevent possible breakdowns, turn on LCD TVs with a delay of at least 15 seconds.
So, there are many reasons for this defect - from the power supply to the matrix itself. If there is no skill in repairing such equipment, it is better to contact an authorized service center.
Additionally
