A power outage is a minor but very unpleasant inconvenience of modern life. Unfortunately, if you live in an area with poor electrical grid infrastructure or stormy weather, you may experience power outages more frequently than people who live in other areas.
The biggest risk of a power outage is the potential damage it can cause to your electronic devices. Your TV, refrigerator, washing machine, and other appliances may experience problems turning back on after a power outage. In this article, we will look at what to do when your TV won’t start after a power outage.
Types of power outages
A power outage could occur for countless reasons, most likely due to the failure of one or more components along the power line. It may be due to a fault in the power plant or somewhere closer to you.
Basically, the causes of a blackout can be grouped into two categories, a loss of power (permanent fault, brownout, blackout) and an overwhelming power surge. A permanent fault occurs due to a power line fault and power will be automatically restored when the situation is resolved. Brownout is characterized by a voltage drop. If the voltage drops completely, then it is a blackout: total loss of power.
A surge occurs when the voltage increases on one of the grid elements and overloads it, thus breaking the supply chain.
What to do after a blackout?
In case your TV doesn’t work properly or doesn’t turn on at all after a power outage, there are a few things you can try before calling the technician or going online to buy a new TV.
Unplug your TV and perform a power drain
The first course of action you should try is a power drain cycle on your TV.
- Unplug your TV from the power source.
- Press and hold the power button for 10 to 30 seconds; This will use up all residual power from your TV.
- Now, reconnect the TV to the power source and try to turn it on. If this doesn’t work, you can try repeating the steps above and then leaving the TV unplugged for several hours. Some electronic components may reset themselves after a while.
- Hopefully this will solve your problems; If the TV works, but not correctly, it is time to move on to the second course of action.
Reset to factory default settings
The TV came off the production line with factory default settings. Before beginning the reset process, disconnect the coaxial cable from your TV if you are using that connection (most likely it is connected to the “Coaxial” or “Ant” port).
- After unplugging your cable/satellite box, press the Power button to turn on the TV.
- Now, press the Menu button to open the main menu of the TV.
- Once you are in the main menu, navigate to Settings either System settings. The actual name of the option varies from manufacturer to manufacturer, but the procedure is practically the same.
- Then choose Options either Advanced Options. Again, the name of the option depends on the brand and model of the TV.
- Then navigate to the Factory Reset/Factory Defaults option and select it.
- The menu will show you a But immediate; select Yeah.
- If necessary, confirm the factory default restore by pressing the button OK either enter button on your television.
- When the screen goes black and your TV returns to the Main Menu screen, plug the coaxial cable back in and turn on the TV.
What if the TV doesn’t turn on at all?
If the TV does not turn on after a power outage, even after unplugging and plugging it back in, most likely the power regulation section has failed. If you’re handy with electrical circuit boards, you can take a look at them yourself. You will find it on the main board or in a separate one on the power supply.
The most common way to do this is to replace the entire board, as most people are not very handy with a soldering iron and a multimeter. Since some of the spare parts are difficult to find on the open market, even if you take them to a service center, they will most likely replace the entire board and send the defective one for repair somewhere else.
If you are confident in your skills to diagnose and repair electrical components on a circuit board, start by inspecting the capacitors for telltale signs of wear, such as bulging tops, should they be flat, signs of leaks, or burn marks. the board. Inspect both sides of the circuit board for damage or poor solder connections, such as cracks, discoloration, or other signs of wear.
After a visual examination of the capacitors on your circuit board, check the continuity of the transistors on the heat sinks, this is done with a multimeter. Given the extreme heat they are exposed to and that they themselves produce, transistors are likely to blame for causing a faulty power supply to your TV.
How to prevent this in the future?
Power outages are a nuisance and could damage or destroy your appliances. If you live in an area with unstable voltage or frequent power outages, you might consider investing in a UPS (uninterruptible power supply) unit.
Conclusion
Although they are very unpleasant, power outages can be solved in several ways. Most of the time, you will only need to reconnect your TV or reset it to its factory settings. Hopefully, this article can help you turn on your TV after a power outage, or at least point you in the right direction. If you have any questions, feel free to leave them in the comments section below.
