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- Check your power outlet. Before you head into more technical fixes, make sure your power outlet is functioning properly. That’s because if it’s not, your TV will not get the power it needs to turn on.
- Remove any surge protector or power strip. If you’re using any surge protector or power strip for your TV, there’s a big chance these accessories have malfunctioned and are causing the issue.
- Replace remote batteries. Are you using the remote to turn on the TV? Well, the remote batteries can run out of juice, and that could prevent your TV from turning on.
- Select the right input source. Your TV has multiple input ports. For instance, it may have a couple of HDMI ports for your console and other displays, a coaxial cable port for your everyday TV channels, a USB port to plug in external devices, and a few other ports.
- Power Supply Test
- Check A Blown Fuse
- Check Damaged Capacitors
- Other Issues
You should first check if the main board on your TV is receiving power from the power supply board. For this, you need a multimeter. Then, you can start the diagnosing process. You need to check the AC input on the power supply board as well as the DC outputfrom the supply board. The power supply board has two sides: hot and cold. We measure AC on ...
A blown fuse can cause the power circuit board to malfunction. It commonly blows out when there is a power surge or lightning strikes. To know if a fuse is blown, inspect the thin metallic wire inside the fuse. If there is a gap in between the wire or a dark smoky substance inside the fuse, you can confirm the fuse is blown. In such a case, you nee...
The capacitor is the next component that can get damaged in the power circuit board. Capacitors get worn out over time, causing the power circuit board to crash. So how do you know if the capacitor is bad? Identifying a damaged capacitor is easy. Simply inspect all the capacitors in the power supply board. If you see any of the capacitors bulging f...
Now that you performed a power supply test and diagnosed the fuse and capacitor, you must have figured out what is causing the power supply board to crash. If you see everything is fine, there is probably an issue with the display panel of your TV. Display components like the backlight inverter and T-Con board are most susceptible to damage. Or, in...
Sep 13, 2024 · Troubleshooting. 1. Power Cycle the TV. Unplug the TV for 60 Seconds: Disconnect the power cord from the outlet. Press and Hold Power Button for 10-15 Seconds: While the TV is unplugged, press and hold the power button on the TV for 10-15 seconds. This can help clear any residual power. 2.
- Check Your Connections. If your TV is connected to a power source but won’t turn on, check the power cable for apparent signs of damage. And if you have a similar cable lying around, you can hook it to your TV and see if it works.
- Reset Your Remote. Since your TV may not turn on if you’re using the remote, it could be that the remote itself has a problem. Luckily, we can do a soft reset to get it working correctly.
- Factory Reset the TV. You must leave your TV plugged in as you perform this step, even if you won’t see a thing on the screen. Moreover, you won’t be using your remote control, but you need to locate the reset button on your TV.
- Select the Correct Input Source. At times the TV doesn’t turn on because the signal or video source is connected the wrong way. Double-check whether you’re using a streaming device, an AVR, a DVD player, Blu-ray, cable box, or whatnot to ensure the input matches the HDMI port you should be using.
Apr 25, 2024 · Unplug your TV and leave it unplugged for 60 seconds. While unplugged, press and hold the power button on the TV for 30 seconds—and we mean a full 30 seconds ("one-one thousand", "two-one thousand", etc.). Wait another 30 seconds—a more casual 30 this time—then plug the TV back in. Try to turn on the TV.
Without using the remote, press any button except the Power button. If anything appears on the screen, this confirms your TV is on. You can continue troubleshooting using our TV has no picture or a black screen guide. The next thing to rule out is a power issue. Unplug the TV and leave it unplugged for 30 seconds.
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Jul 3, 2024 · 1 Check Your Cables. The first step to troubleshooting a TV that won’t turn on is to check its cables for any signs of damage or wear. A damaged cable can cause interruptions to the power supply, which might be the reason for your TV not turning on. If there are no visible signs of damage, run your fingers along the length of the cable to ...
