![]() ![]() People often assume that all CRT TVs had old-fashioned dials on the front, but that is not true. Most people who come across the old box set are only interested in disposal or recycling, and recycling is always the better option, especially when talking about a CRT TV. While CRT TVs went out of style in 2008, you can still find the old televisions lurking in grandparents’ basements, and some manufacturers still sell the televisions in Asia and the Middle East. Despite the devices’ reliability, technology did what it always does and evolved, using better and safer means. Big, boxy, and often weighing more than your standard flat panel television, cathode ray tube televisions were the standard for nearly 40 years, providing reliable images with one or more electron guns and fluorescent screens. Other frequent problems with CRT TV are loss of vertical sync and loss of horizontal sync in the picture.For those born before 2000, CRT TVs were a common household appliance. There can be other reasons as well like some faulty internal wiring. Other reasons can be damaged audio amplifier, a low supply voltage to the amplifier or a faulty audio IC. The most possible reason is faulty speakers. No sound or less sound is a commonly heard problem with CRT TVs. High-power magnets can sometime cause permanent damage to the CRT. Shadow mask is located behind the glass screen, as shown in the above graphical Cathode Ray Tube picture. Magnets placed near a CRT can damage the set’s “shadow mask,” which can cause the wrong colors to appear in that area. It is mainly due to presence of any magnetic device near the TV. Whether you have a CRT TV or owned it before, you must have witnessed at some point of time, a colorful shadow on the sides of the screen (can be seen as reddish orange shadow in the picture). Call a professional TV repair person and get it corrected. In such situation, immediately unplug the TV from the power outlet. The possible reason behind the burning smell is caused by insulation burn. The minor crackling noise is due to high voltage arcing. The most prominent reason is cathode ray tube failure. Other reason can be defective vertical ICs. The ICs may have lost contacts with solder joints because of the heat production during operation.ĬRT TV crackles when powered up or emits a strong electrical odor The probable cause of this problem can be a faulty yoke with a defective or burned coil inside it. Some time when you power on your CTR TV you see a single thin vertical line on the screen. ![]() Single vertical line in the center of screen The third possible cause can be a defective capacitor. The other probable cause can be loose contact between the yoke and the main board. Many time it happens that there appears a single thin horizontal line on the CRT TV screen. A technician or a PRO can easily repair this sort of problem in-home.ĬRT displays one horizontal line in the center when turned-on Sometimes bad or faulty soldered-in fuses and resistors can also cause image distortion. The circuit has convergence ICs, which when go bad create the problem of bowed picture. It is usually caused by the failure of an internal circuit called the convergence circuit. This is a very common picture problem with CRT TVs. ![]() If the basic diagnosis comes out fine then it might be the time to call a professional TV repair person. If the power is OK, then check the video settings (like brightness, sharpness, contrast and picture settings). If the settings are fine then there can be problem in the video cable and hardware. verify whether your TV is plugged in correctly and is receiving sufficient power for operation. If you are facing such issue then check the obvious things first i.e. No image is a very common problem with cathode ray tube TVs. Here are some common CRT TV problems and their diagnosis: Sometimes the cost of repairing such problems in the CRT TV exceeds the cost of replacing it with a new TV. But many problems often relate to the picture quality, picture color and clarity and sound quality of these CRTs. However, there are many consumers who still have their CRT sets and are satisfied with them. Regis Al Mouj Muscat Resort and residencesĬRT (cathode-ray tube) television sets have gone down in popularity with the introduction of large screen, slim and flat LEDs and LCDs.
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