When an Onn Roku TV won’t turn on, malfunctioning power board, loose or damaged cable connection, or the TV’s temporary system glitch are typically the primary culprits.
If the TV has stopped working due to an internal circuit glitch, you can easily fix this by power cycling (not rebooting).
However, if it is caused by another issue, you may need to dig deeper to find a solution.
In this article, I will provide a comprehensive breakdown of why your Onn TV isn’t turning on and what steps you can take to get it working again.
Let’s dive into it…..
Why Onn Roku TV won’t Turn on?
I already mentioned this!
However, Your Onn TV isn’t turning on because it has encountered a system glitch or the main power board has been damaged.
Aside from this, sudden power surges are also a significant factor!
Who knows if your TV got attacked by this and now it stopped working?
One more thing!
If your Onn TV isn’t turning on but red light is on,
- The remote control might not be working properly.
- TV’s software or firmware may have encountered an error or glitch.
- TV’s internal circuit and mechanism may have overheated.
- your TV may be in standby mode.
How to Fix Onn TV not turning On?
Note, before writing this article, I looked at Onn TV’s user manual and several youtube videos related to this issue and also the discussion section.
The methods I am going to discuss here may not work for everyone.
If you fail to troubleshoot the issue after reading this article, you need to send the TV to a repairer.
Step 1: Is the power outlet or power cord working correctly?
You might have unplugged and replugged the TV many times, but it didn’t work, right?
You did this in the wrong way!
- Unplug the TV from the power source completely.
- Keep it unplugged for about 60 seconds.
- During this time, press and hold the power button for about 30 seconds.
- Once done, plug the TV back in.
Now check if the TV turns on. If it doesn’t, proceed to the next step.
Don’t forget to check both the power cable and the power outlet to ensure they are working correctly.
Step 2: Check the TV’s power button
This step is especially for those, who use their TV using the TV’s physical power button.
Sometimes the power button gets jammed due to dust or gunk accumulation. When this happens, TV won’t power on no matter how many times you press it.
Press the button several times with some force and see if this fixes it.
Step 3: Check the remote
Typically you press the remote’s power button to turn on the TV. But what happens when the remote malfunctioning?
That’s the point!
“I was about to give up on my ONN TV, but then I had a wild idea to reset my remote’s battery. And you know what? It actually worked! My TV came back to life like Frankenstein’s monster of technology. Crazy, right?”
First, take out the batteries completely. Then press and hold the remote’s power button for about 15 seconds. Before putting the batteries back in, clean the batteries’ contacts and make sure the batteries have enough power.
💡 Also read: How to Turn on Onn TV without using any Remote?
Step 4: Check the Backlight
If your TV appears to have power and seems to turn on, but displays a black screen, it’s most likely due to a damaged backlight.
There’s an easy way to confirm this:
Power on the TV, then take a flashlight (the flashlight on your phone will work too) and shine it close to the screen.
Carefully observe whether you can see a very dim image on the screen. If you can, the LED backlight has been damaged. You’ll need to get it repaired by a skilled technician if that’s the case!
My Onn Roku TV won’t turn on but red Light is on
Your Onn Roku TV has a red light that shows it has power, but it doesn’t turn on when you press the button.
This could be because:
- Something inside the TV is broken and needs to be replaced.
- The sensor that receives the signal from the remote control is not working.
- The board that controls the power is not working properly.
- The button on the TV is stuck or broken.
- The remote control is not working or has no batteries.
To fix this issue, find out what is causing the problem and then change the part that is not working.
You may be able to do some basic things likechecking and resetting the remote’s batteries, unstucking the TV’s power button.
But if the issue you think with the internal hardware components, call a professional to help you.😊
Q. How do I know if my Onn TV fuse is blown?
If your Onn TV suddenly stops working, there’s a chance that a fuse has blown. But how can you tell if that’s the case? Here are a few signs that your Onn TV’s fuse may be blown:
- The power light is off or flickering.
- There’s no picture on the screen, even when you turn on your TV.
- You hear a popping sound coming from your TV.
- Your TV smells like it’s burning.
If you notice any of these signs, check your TV’s fuse.
To do this, use a screwdriver to unscrew the TV fuse cap holder. Then, carefully check the fuse wire. If you see a visible gap between the wires or a metallic or dark smear inside the glass, you have a blown TV fuse.
Note: The TV fuse is located on the power supply board of the TV.
Q. How do I know my Onn TV motherboard is damaged?
Below are the signs you will realize your TV’s motherboard has been damaged:
- TV won’t turn on no matter what you do!
- The TV turns on, but there’s no picture.
If the TV turns on, but the picture looks fuzzy or distorted, the motherboard might be damaged!
Abdul Kader, a handy guy and experienced founder of a TV repair shop in Gulshan, Dhaka, Bangladesh. He is mainly an expert in understanding and repairing different types of issues with Smart TVs and providing helpful insights on how to keep them in good working order. Read his Full Story.