In TVs, the screen matrix does not have additional protection, and therefore can be easily broken through carelessness. To save money on TV repairs, you can do a DIY replacement.
Necessary
- - matrix for replacement;
- - a set of screwdrivers with a special profile;
- - thin tweezers;
- - a thin metal plate.
Instructions
Step 1
The most difficult thing when replacing a matrix is to find a suitable analogue. Different manufacturers of LCD TVs can use the same matrix models, and therefore it is possible to determine the part number without disassembling the TV only from the specification specified in the user manual, and even then not always. The best way to find a replacement is to photograph the nameplates located on the back of the broken matrix and look for the corresponding part by them. It is not always possible to buy a new matrix, especially if the TV model is relatively new, and therefore you may need to visit the stocks or purchase a TV of the same model with a whole screen, but with a different kind of damage.
Step 2
To replace the matrix, you need to completely disassemble the TV case. It consists of front and back halves, fastened together with screws or self-tapping screws located on the back wall. After unscrewing the connecting elements, the TV set should be placed with the screen upside down on a soft flat surface and walk with a thin metal plate around the perimeter, separating the plastic latches. The front part of the case can serve as a decorative frame, but most often it is to it that the TV matrix is attached by means of metal brackets or a frame. It should be removed by first disconnecting the power cable and signal cable.
Step 3
On the new matrix, you first need to install metal mounts, then fix the entire structure on the TV case. The assembly sequence may differ depending on the case design, however, you should always remember to connect the signal loop and the power cable. The performance check of the new screen must be done before assembling the TV case. To do this, you need to turn on the power and make sure that the matrix backlight is working, and there are no burnt-out pixels, cracks or streaks on the screen surface. When the new display is found to be functional, you can complete the assembly of the case. If the TV does not display the image on the screen, it may be necessary to coordinate the new matrix with the control module through the service menu. Manufacturers usually indicate how to do this in the instruction booklet. If this information cannot be found, you will have to seek help from a qualified installer.
