Why the TV turns off is a very frequently asked question among users of TVs from different manufacturers. There can be two reasons for this, and such a nuisance is removable.
1. Incorrect setting. Some older TVs have an Auto Power Off function in the menu. The TV turns off if there is no reception signal for a long time. Please note if this feature is enabled or not, disable auto power off and you will be fine. 2. Malfunction. If the TV is new and is under warranty service, then in this case it is necessary to contact a specialized service center for repair. In the event of the expiration of the warranty period, you can contact any repair shop for complex household appliances, preferably with qualified personnel. Here you have the right to receive a post-repair guarantee within a certain period of time. The environment in which the TV operates is of great importance. High temperature, humidity, dustiness, aggressive environment disrupt the normal operation of circuit components, oxidation and destruction of contacts, overheating occur, which ultimately leads to spontaneous shutdown. Sometimes it is enough to blow through the TV chassis with a strong stream of air, replace the fuses, and wipe the oxidized contacts. Also, the reason can be surges and voltage drops in the network. If you have basic knowledge of radio engineering and know how to use a soldering iron and a tester, then you can try to find the reason for turning off the TV yourself and eliminate it. First of all, visually check the state of the capacitors of the power supply. Over time, electrolytes can lose their performance, dry out, swell, an electrolyte leak appears from under the lid, this can be seen from the wet spots around them. Sometimes this will corrode the copper tracks on both sides of the PCB. In some cases, it is sufficient to replace the defective capacitor. Try to do a complete visual inspection of the mounting panels. To do this, arm yourself with a powerful magnifier and provide good lighting. Over time, due to heating, ring cracks appear in the tracks of printed circuit boards, poor-quality soldering of circuit elements is revealed. All suspicious places must be carefully soldered, which often leads to the elimination of the problem of spontaneous shutdown. Malfunctions in line or frame scanning systems are also possible, transformers or elements in their circuits fail. Such damage is already more difficult to identify for a non-specialist. You can ask for help over the Internet. There are many sites and forums where experts on the repair of television equipment will share with you comprehensive information and give advice. Please note that repairing a TV belongs to the category of especially dangerous work, since there is a high voltage of several thousand volts, and without having the proper knowledge and qualifications, you put your life in serious danger. Soberly assess your capabilities, in case of doubt, trust the telemasters.
