[Fix] Mitsubishi Big Screen TV Won’t Turn On (100% Working)

Edwin Parker
By Edwin Parker 11 Min Read
11 Min Read

Hey there! Have you ever faced the annoying issue where your Mitsubishi big screen TV just refuses to turn on? Trust me, you’re not alone in this. It’s pretty common to encounter some hiccups with electronic devices, even with top brands like Mitsubishi.

I totally get it – it’s super frustrating when your TV won’t cooperate, especially when you’re all set for a movie night or to catch your favorite show. But hey, no need to panic! This isn’t usually a major catastrophe, and with the right guidance, you can totally fix this on your own.

Lucky for you, you’ve stumbled upon the perfect guide. I’m here to help you figure out what’s causing this headache and, more importantly, how to fix it. So, let’s roll up our sleeves and get your Mitsubishi TV back in action, shall we? No time to waste – let’s dive right into solving this!

Reasons for Mitsubishi TV Not Turning On

Let’s play detective and figure out why your Mitsubishi TV is giving you the silent treatment. There are a few usual suspects we need to consider:

  1. Blown or Damaged Fuse: Think of a fuse like a tiny superhero inside your TV, protecting it from power surges. If it’s blown or damaged, your TV won’t turn on.
  2. Power Supply Issues: This is the heart of your TV’s electrical system. If something’s wrong here, it’s like the TV’s heartbeat is out of rhythm.
  3. Screen Backlight Troubles: The backlight is what lights up your screen. If it’s having a bad day, your screen will stay dark.
  4. Faulty Settings: Sometimes, it’s just a wrong setting playing hide and seek with you.
  5. Overheating: Electronic devices are like people; they don’t like getting too hot. Overheating can cause your TV to shut down to cool off.

Now, since we’re not exactly sure which one of these issues is causing the trouble, we’re going to go through a step-by-step troubleshooting guide. It’s like a treasure hunt, where the treasure is your TV springing back to life!

How to Fix the ‘Mitsubishi Big Screen TV That Is Not Turning On’ Issue

Now that we’ve looked at the possible reasons why your Mitsubishi TV isn’t turning on, let’s get down to business and fix it. I’ll guide you through each step, making it as simple as possible.

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Fix-1: Faulty Power Supply

Sometimes the issue is just with the power supply. Let’s see how to fix this:

  1. Unplug to Begin: Start by disconnecting your TV from the power outlet. Safety first!
  2. Check the Wall Outlet: Make sure the outlet you’re using works well and gives out the right voltage. You can test it by plugging in another device and seeing if it works.
  3. Inspect the Power Cord: Look closely at the TV’s power cord. Are there any cracks or severe bends? If it looks damaged, it’s time for a new cord.
  4. Circuit Breaker Check: This little guy is important. If it’s damaged, replacing it might just do the trick.
  5. Reconnect with Care: Plug all the cables back in, making sure each connection is firm and secure.

Fix-2: Faulty Remote Control

If your Mitsubishi TV still won’t turn on, the culprit might just be your remote control. Here’s a simple way to check and fix it:

  1. Test with the TV Button: First, try turning on your TV using the power button on the TV itself. If the TV turns on, your remote might be the issue.
  2. Battery Replacement Time: Open up the remote’s battery compartment. Take out the old batteries and get ready to put in some fresh ones.
  3. Perform a Hard Reset: Before you pop in the new batteries, let’s reset the remote. Press and hold the power button on the remote for about 20 seconds. This can clear any minor glitches.
  4. New Batteries In: Now, insert the new batteries. Make sure they’re facing the right way!
  5. Check the Remote’s Infrared Signal:
    • Grab your smartphone and open the camera app.
    • Point the remote’s sensor (the small bulb at the top) towards your phone’s camera.
    • Press any button on the remote.
    • Look at your phone’s screen: if you see a light coming from the remote’s sensor, the buttons are working fine.
  6. Final Test: Aim your remote at your TV’s sensor and press the power button. Fingers crossed, your TV should now turn on!

Remember, if the remote still isn’t working, it might be time for a new one. But let’s hope these steps bring your TV back to life.

Fix-3: Faulty Fluorescent Lamp T-con Board

The T-con board in your TV is like the brain for the screen. If it’s not working right, your TV won’t turn on. Let’s see how to check and potentially fix this:

  1. Disconnect the LCD Panel: Carefully detach the LCD panel from the T-con board in your TV. This might sound technical, but with a bit of patience, you can do it.
  2. Clean the Board: Using a brush and some contact cleaner, gently clean the T-con board. Dirt and dust can sometimes cause issues.
  3. Inspect and Test: Look over the board and check the DC supply voltage. Also, test the other basic components on the board for any faults.
  4. Replace if Necessary: If you discover any issues, it’s best to replace the defective T-con board. It’s a good idea to get an expert’s opinion on this to ensure you get the right replacement.
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Fix-4: Factory Reset the TV

Sometimes, the problem is just a glitch in the system settings. A factory reset can often fix these kinds of issues. Here’s how to do it:

  1. Locate the Reset Button: On Mitsubishi TVs, the reset button is usually hidden inside the front panel.
  2. Press the Reset Button: Use something small, like an unfolded paper clip, to press the button.
  3. Watch for the Flashing Light: After pressing the reset button, a green light should start flashing on the front panel of your TV.
  4. Wait for the Light to Stop: Patience is key. Wait until the light stops flashing.
  5. Test Your TV: Turn on your TV and see if the reset did the trick.

Fix-5: Damaged Backlight

Sometimes your TV might be on, but you can’t see anything because the backlight has gone on vacation. Let’s figure out if that’s the case:

  1. The Flashlight Test: Grab a flashlight and turn on your TV.
  2. Shine and Observe: Shine the flashlight very close to the TV screen.
  3. Look for the Picture: If you can see the picture with the flashlight’s help, then bingo! Your backlight is the culprit and needs replacing.

Fix-6: Damaged Capacitors

Capacitors are like tiny energy storage tanks for your TV. If they’re not happy, your TV won’t turn on. Here’s how to check them:

  1. Open Up Your TV: Gently disassemble your TV and take a peek at the power board.
  2. Spot the Capacitors: Look for cylindrical components on the mainboard. These are your TV’s capacitors.
  3. Check for Swelling: If the capacitors look swollen or bent outwards at the top, they’re signaling for help. They need to be replaced.
  4. Swap the Bad for Good: You’ll need to remove (de-solder) the damaged capacitors and replace them with new ones (re-solder).
  5. Reassemble and Test: Put your TV back together and turn it on. With some luck and your handy work, it should power up just fine!


Congratulations! You’ve just taken a deep dive into the world of TV troubleshooting. By now, you should have a good grasp of the common reasons why a Mitsubishi TV might play hard to get and not turn on. More importantly, you’ve learned some nifty tricks to fix these issues yourself.

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Remember, the solutions we’ve explored in this guide are here to help you breathe new life into your TV. So, go ahead and apply these methods carefully. With a bit of patience and some DIY spirit, you’re well-equipped to get your TV up and running again.

I’d love to hear about your troubleshooting adventure! Which method did the trick for your TV? Drop a comment below to share your experience. Your story could be the guiding light for someone else facing a similar issue.

Here’s wishing you the best of luck in your Mitsubishi TV repair journey. You’ve got this! And hey, once it’s fixed, kick back, relax, and enjoy your favorite shows and movies. Your TV is more than just a screen; it’s a window to endless entertainment and cherished moments with friends and family.

Frequently Asked Questions

What should I do first if my Mitsubishi TV won't turn on?

Start by checking the simplest things: ensure your TV is plugged in properly, the power outlet is working, and the remote control has fresh batteries. Sometimes, these basic checks can solve the issue right away.

How can I tell if the problem is with my remote and not the TV?

Try turning on the TV using the power button on the set itself. If the TV turns on, then the issue might be with the remote. You can also test the remote's infrared signal using your smartphone's camera.

Can a blown fuse be the reason my TV won’t turn on?

Yes, a blown fuse can prevent your TV from turning on. Check the fuse and replace it if necessary. Remember, handling electrical components can be risky, so proceed with caution or seek professional help if needed.

What does a factory reset do, and how can it help?

A factory reset restores your TV to its original settings, which can resolve issues caused by incorrect settings or system glitches. You can typically perform a factory reset by pressing a specific button on the TV, often located inside the front panel.

How do I know if my TV's capacitors are damaged?

Capacitors are located on the TV's power board. If they appear swollen or bulging, they might be damaged and need replacing. Handling capacitors requires some technical know-how, so if you're not comfortable doing it yourself, consider getting help from a technician.
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