A flickering TV screen is an indication that the TV’s internal components are not working properly. When this happens, you will see flickering or “jittering” on the screen. The solution to this problem is to replace the defective parts.
Common Causes of Flickering TV Screen
Flickering TV screens occur due to a variety of reasons and the most common cause is due to bad capacitors in the TV’s power supply unit. Another common cause of flickering television screens is due to a bad power supply unit.
Sometimes a defective part can be fixed by simply replacing it with a new one.
However, sometimes a defective part needs replacement completely to get rid of the flickering television screen permanently. To check if this problem is caused by any faulty parts in your TV, you should check your main fuse or circuit breaker which will indicate if any faulty parts in your TV are causing it.
Sometimes, a flickering television screen can also be caused by malfunctioning or dirty tubes inside the CRT (Cathode Ray Tube) monitor used in your TV set and this may require servicing from qualified technicians
Flickering television screens can also be caused by overheating of CRT monitor tubes causing distortion of the picture and other problems.
The solution to Flickering TV Screen
- Turn off and turn on the TV set again. If the problem persists, call a technician to replace the faulty parts
- Check the capacitors on the power supply unit (PSU) and if they are damaged, replace them with new ones.
- Check the fuse and circuit breaker of your TV set and if they are burnt out, replace them with new ones.
- Clean or service your CRT monitor (or TV tube) and if it is dirty or needs to be cleaned, do so. Also, make sure that your CRT monitor tube is not broken or damaged. If your CRT monitor needs to be serviced, contact a qualified technician for assistance.
- Disconnect all cables from the TV set and turn it off for a few minutes to let all parts cool down before you turn it back on again.
Turn on only one channel at a time and then see if the problem persists by turning off that channel one by one until you have determined which channel causes a flickering television screen on your TV set.
- Make sure the video source on your TV set is turned on correctly.
- If you are using a VCR, make sure that the VCR is connected to the correct input jack of your TV set.
- Check all connections on your cable box and make sure that it is connected to the correct input jack of your TV set.
- Try connecting other devices such as a DVD player, video game system, or computer to see if it causes a flickering television screen on your TV set.
- Make sure that you have not accidentally adjusted the picture contrast or brightness settings in the menu settings of your TV set and if you have, adjust them again to get rid of the flickering television screen permanently on your TV set.
- Change your internet service provider or wireless router and make sure that the internet connection speed is not too slow to cause a flickering television screen on your TV set.
- Make sure that you have the latest software updates for your computer, operating system, and other software applications installed on your computer. Also, make sure that your computer has enough memory (RAM) to run all applications.
- If you are using a computer monitor, make sure that it is not broken or damaged. If it is, replace it with a new one.
- Unplug all unnecessary power cables from the back of your TV set and also disconnect all antenna cables from the back of your TV set if you are using an antenna to get better reception of broadcast signals.
- Check if there are any devices attached to the video input jacks of your TV set such as VCRs, cable boxes, or DVD players and if there are any, unplug them and see if this causes a flickering television screen on your TV set. If this does not fix the problem, remove them from the video input jacks of your TV set and plug them into other video input jacks on the back of your TV set.
- Inspect your router or modem for any damage or malfunctioning parts and if it is damaged, replace it with a new one.
- If you are using a computer, make sure that the operating system of your computer is up to date and all applications are also up to date.
- Make sure that your TV set has enough memory (RAM) to run all applications and software. You can check this by going to your computer’s “Control Panel” and then “System”. Look for the information regarding RAM (memory) in your computer.
A flickering TV screen is not an indication of a serious problem with your TV set. However, if the problem persists, you should call a technician to repair it. If the problem is caused by any faulty parts in your TV set, then you should call a technician to replace them with new ones.
You can also use this trick for fixing any other type of flickering electronic devices such as VCRs, DVD players, DVD players, and so on. This method works for most electronic devices that have “tube” display screens such as CRT monitors and plasma TVs (flat screen TVs).
This method also works for almost all electronic devices which have an LCD (liquid crystal display) monitor like computer monitors, notebook computers, and netbooks. This trick works very well for most computers that have LCD monitors because most LCD monitors use tubes inside them.
The same principle applies to many other types of electronic devices that have tubes inside them such as CD players, tape recorders, and radio tuners among others.
If you are having problems with a flickering television screen on your TV set or any other type of electronic device, I would recommend you to try this trick because it has worked for me and many others when they were having problems.
Mainly Max Anthony is an athletics tutor & lives in Texas but that’s not it. He’s is also a music producer, content creator, record producer, writer, and session musician. He has been producing music and engineering at a lower level for over 5 years. His passions include quality music gear and that’s what he loves to write about on HifiBeast. ( Shoot him an email now )