A television is a complex technical structure, the systems work together, one depends on the other. The presence of malfunctions in small parts leads to disruption of the stability of the functionality. If the TV shows as negative, then the problem must be solved immediately. If left unnoticed, the device may fail completely, and restoration will be expensive.
High-quality TV repairs at home are performed by our company’s specialists. Experienced technicians are able to determine approximate faults based on image quality. Accurate localization of the breakdown is possible only after diagnostics using special tools and technological equipment. Leave applications on the website or by phone. We work every day from 7:00 to 23:00. All work is performed at the client's home.
Causes
There may be several reasons why negativity appears on the TV:
- Magnetization. CRT devices have a special button; press it and the screen will demagnetize. On modern models from Panasonic, Philips, BBK and others, magnetization is also present, but demagnetization is performed automatically if the equipment is operated for more than 3 hours.
- Matrix. It is sensitive to careless use, power surges, high humidity and other negative influences. Negativity on the TV screen may also appear due to its malfunction.
- Poor contact with control panel or other systems. In modern models from Samsung, LG, Sony and others, the elements are connected to each other by microscopic contacts. While working, the device heats up and the contacts weaken. Therefore, color rendition is accompanied by defects, including classic or color negatives.
There are other reasons - power supply or improper operation of the antenna. Sometimes the cause is an Internet connection. In this case, try opening browser pages through the screen. If there is an inverse image, consult your provider.
Diagnostics and testing
If, when diagnosing a malfunction, the cause of distortion is damage in the matrix itself or in its individual elements, then the only way out is to completely replace the module. But first, it is recommended to once again verify the correctness of the assessment made by installing a known-good matrix in the TV. The burnout of one of the light bulbs of this element is diagnosed by significant dimming of individual areas of the screen.
If strong ripples or so-called “snow” are detected on it, attention is first of all drawn to the receiving part of the TV (its antenna, cable, or the correct settings of the channels being watched). If one of the color components (blue, red or green) disappears, we can conclude that there are problems in the operation of the unit responsible for their formation or the video amplifier. Testing for this malfunction is carried out according to the same scheme as in the case of checking the matrix (replacing the block that has raised doubts with another, known-to-be-good module).
Independent actions
When a color negative appears on an LCD TV, the user first tries to troubleshoot the problem himself. What does this lead to?
- Injuries. Failure to comply with safety precautions results in electric shocks.
- Damage to systems. Even if you are sure that you are familiar with the technical part, you may not have the right tool at hand. Therefore, there is a risk of damage to the boards.
- Complete failure. LCD models have a complex LED system that can be easily damaged by careless actions. As a result, the red negative no longer appears, but the image disappears completely, as well as the reaction to the remote control or power buttons. Users often notice that they have touched one or another diode on the LED screen, which triggered a chain reaction on the entire equipment.
Recommendations from engineers
Operators of the A-Iceberg SC often receive calls with complaints about inverted video. At the same time, the problem manifests itself on equipment of many well-known brands, regardless of cost and functionality.
To reduce the likelihood of an inverted image appearing, use the recommendations from our engineers.
- Do not install the TV in rooms with high levels of humidity or dust. There is a high probability that such an environment will damage the board.
- Transport LCD panels with extreme care and do not allow them to be dropped or bumped.
- To avoid problems with network voltage, connect equipment through a household stabilizer.
- If signal distortion and inversion are detected, disconnect the equipment from the network and call a technical center employee.
Remember that eliminating such a flaw is a rather complex process, requiring practical skills and extreme care from the performer (especially when it comes to re-soldering microcircuits). Unskilled actions usually lead to additional breakdowns or render the device completely unsuitable for further use. It is better to call a specialist who will eliminate the defect quickly and efficiently.
Where can I fix it?
Cooperation with specialists in matters of TV equipment repair gives 100% results.
Advantages of "Remontano":
- We work on the client’s premises - no need to transport equipment to the workshop.
- Professionals with qualifications and experience get down to business - they can work with any brands and models (from picture tubes to ultra-modern ones).
- Tools are always available. Diagnostics and repair of breakdowns are carried out using professional equipment.
- Corporate spare parts warehouse.
- Working hours: from 7:00 to 23:00, excluding weekends and holidays.
- Urgent visit of a specialist when submitting an application before 12:00.
If the image on the TV is negative, call or use the feedback form on the website. The master will arrive at any time convenient for you.
Negative or inverse image on Samsung LE37A430T1XRU TV
A Samsung LE37A430T1XRU TV was repaired with a faulty negative image. As the owner of the TV said, the malfunction appeared after the move and that on the way the TV either fell or jumped and after that it began to show like that. I took the TV, and the first thought that came to me was that there was some kind of non-contact of the cable, but after turning it on, everything fell into place, and I remembered this malfunction, I had already encountered such problems, and falling on the road was a mere coincidence, but let’s take things in order . First, let's take it apart and inspect it, and maybe it's true that it jumped out of the connectors. After disassembly, I reconnected all the wires and cables, but the fault remained. Bad luck
