Why is my onn monitor not turning on?

Why is my onn monitor not turning on?

If you’re facing the frustrating issue of your onn monitor not turning on, you’re not alone! Several factors can contribute to this problem, but luckily, most of them have simple solutions. In this article, we’ll explore the possible reasons causing your onn monitor to stay black or fail to power up, and how you can troubleshoot them effectively.

**The most common reasons why your onn monitor is not turning on include:**

1. **Loose Connections:** Ensure that all cables connecting your monitor to the power outlet and the computer are tightly secured.
2. **Power Issues:** Check if the power outlet is functional by plugging in another device. Also, inspect the power cord for any damage or fraying.
3. **Faulty Power Supply:** If the power supply unit is faulty, your onn monitor won’t receive adequate power. Consider testing it or replacing it with a compatible one.
4. **Incorrect Input Source:** Ensure that the input source on your monitor is correctly set. You may have to switch between HDMI, VGA, or DisplayPort depending on the cable you are using.
5. **Outdated or Incorrect Driver:** Update the graphic driver software on your computer to ensure compatibility with your onn monitor. Visit the manufacturer’s website for the latest driver version.
6. **Signal Issues:** Confirm that the device connected to your monitor is working correctly. Test it on another monitor or try a different input source to identify if the issue lies with the monitor or the device.
7. **Sleep Mode or Screen Off:** Check if your onn monitor is in sleep mode or if the screen is turned off by pressing buttons on the front panel or adjusting the power settings in the on-screen display (OSD) menu.
8. **Faulty Display Cable:** Inspect the display cable for any signs of damage or loose connections. Consider replacing it if necessary.
9. **Monitor Defect:** In some cases, your onn monitor may be defective. Reach out to customer support or consider returning it if it’s still under warranty.
10. **Overheating:** Monitor components can overheat, leading to a failure in turning on. Ensure that the monitor is kept in a well-ventilated area to prevent overheating.
11. **Hardware or Software Conflict:** Certain hardware or software conflicts can prevent your onn monitor from turning on. Try disconnecting any recently added devices or uninstalling incompatible software.
12. **Faulty Capacitors:** In a few instances, faulty capacitors on the monitor’s circuit board can cause power issues. Consider contacting a professional for assistance in diagnosing and repairing this problem.


1. Why is my onn monitor showing a blank screen even when turned on?

A blank screen could indicate a loose connection, faulty power supply, or incorrect input source.

2. How can I check if the power outlet is working?

Plug in a different device to the same outlet and see if it powers on.

3. What should I do if my onn monitor is in sleep mode or screen off?

Press buttons on the front panel or navigate the OSD menu to disable sleep mode or turn on the screen.

4. Can outdated drivers cause the monitor not to turn on?

Yes, outdated or incorrect graphic drivers can lead to compatibility issues between your onn monitor and the computer.

5. Is it necessary to switch the input source on my monitor?

Yes, you need to select the correct input source (HDMI, VGA, or DisplayPort) depending on the cable you are using.

6. How can I determine if the issue lies with the monitor or the connected device?

Test the device on another monitor or connect a different device to your onn monitor to troubleshoot the issue.

7. How can I prevent my onn monitor from overheating?

Ensure proper ventilation around the monitor and avoid blocking any air vents.

8. Can recently added hardware or software conflict with the monitor?

Yes, conflicts between new hardware or software can sometimes prevent your onn monitor from turning on.

9. How do I know if my monitor is defective?

If you have ruled out all other troubleshooting steps and the monitor still won’t turn on, it may be defective.

10. Is it possible to repair faulty capacitors on my own?

Repairing faulty capacitors requires expertise, so it is recommended to seek professional assistance.

11. Can a faulty power cord cause my onn monitor to remain off?

Yes, if the power cord is damaged or faulty, it can prevent your onn monitor from receiving adequate power.

12. What should I do if none of the troubleshooting steps work?

Contact customer support for further assistance or consider returning the monitor if it is still under warranty.

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