HOW TO REPAIR TV PICTURE TUBE

As with any electronics, a TV is durable and has shelf-life. The heat of the internal components of all electronic components can cause deterioration of the cables and circuits in the equipment over time. Other external factors such as humidity, electricity, and magnetism can also damage these devices. A picture tube or CRT (Cathode Ray Tube) is the device that produces colors for a television with a vacuum tube and an electron gun connected to a fluorescent screen. Over time, these tubes can be destroyed by heat, magnetism and other factors. If you know what to look for, you can troubleshoot your TV to see if the screen is broken.

HOW TO IDENTIFY WHEN YOUR TV PICTURE TUBE IS BAD

Look for blurry areas on the TV screen when it's on. These may appear as circular bluish-green spots or as a large spot. This is a warning that a magnetic disturbance has affected the picture tube. This problem may occur near power cords, a large metal object near the TV, or moving the TV for a long time.
Turn on the TV after a lightning strike. Turn it on well after the storm is over. If your power goes out or there's a flash of light near your home and the TV is now blurry or has large spots, it may indicate that the picture tube has been magnetized. This is similar to the effect of an EMP (electromagnetic pulse).

WHAT PROBLEMS CAN CAUSE A BAD TV PICTURE?

Here are some problems that a bad TV picture can cause to your TV screen, and also their solution:
CRT TV NO IMAGE
No image is a very common problem on cathode ray tube TVs. If you encounter such a problem, first check the obvious, that is, check if your TV is properly connected and is getting enough power to operate. If the power is OK, check the video settings; such as brightness, clarity, contrast, and image settings. If the settings are fine, then the video cable and hardware may cause problems. If the basic diagnosis goes wrong, it may be time to Google ‘TV repairman near me’ to call a TV repairman to fix the issue.


TV DISPLAYS ONE HORIZONTAL LINE IN THE CENTER

It is often the case that a single thin horizontal line appears on the CRT television screen. The probable cause of this problem may be a broken yoke with a broken or burnt coil. The other probable cause may be the free contact between the yoke and the motherboard. The third possible cause may be a faulty capacitor. You will need a TV repairman to replace the Capacitor. To find a TV repairman, type ‘TV repair near me' in the Google search bar.

SINGLE VERTICAL LINE IN THE CENTER OF TV SCREEN

As soon as you turn on the CRT TV, you will see a single thin vertical line on the center of the screen. The probable cause of this problem may be a broken yoke with a broken or burnt coil. Another reason can be erroneous vertical ICs. The ICs may not be in contact with solder joints due to heat buildup during operation.

CONCLUSION

A cathode-ray tube television does face picture tube problems from time to time, especially when they are too old. However, many problems can swirl up from a bad screen tube which can produce many screen errors as mentioned in the above article. Some can be repaired by following some DIY steps; some need to be fixed by only a professional TV repairman. In case you need a TV repairman. Google ‘Tv repairman near me' and phone a TV repair expert to look into the situation.