The television, a device that essentially allows a live image to be projected and displayed from one place to another, was invented in 1923 by John Loggie Baird in England. The first image was broadcast by him in 1926.

Television, a word formed by combining “tele” (far) and “vision” (to see), meaning “to see from afar,” generally converts sound and images into electrical signals and transmits them via transmitters. These transmitted signals are converted back into sound and images through a receiver in the television set.

If we examine it in detail: Billions of dots are rendered on the screen according to the incoming signal, and the images change at a speed the eye cannot perceive, making the pictures appear to move. The devices we call transmitters include cameras and antennas, while receivers refer to television and radio receivers.

Tubes in cameras convert light energy into electrical signals, and radio transmitters convert sound energy into electrical signals. At a specific frequency, these electrical signals are transmitted, then converted into light energy via the tubes in the television and into sound signals through the radio receiver. The bandwidth and frequency differences in sound and image transmission are synchronized by the system in the receiver to obtain harmonious audio and video.

In LCD and LED TVs, while the working principle remains the same, there are differences in the projection system on the receiver side. In CRT (tube) TVs, the incoming electrical signal is the reflection of billions of dots through light energy via the tube. In LCD TVs, liquid crystals between two polarized glasses perform this task by reflecting light from a special fluorescent backlight. In LED TVs, a series of LEDs perform this function, eliminating the need for a separate backlight source.

Now, let’s look at the malfunctions experienced similarly or separately across all these technologies:

• There is no sign of operation on the television.

If the device is plugged in and the fuse has not tripped, the TV’s power supply board (PSU) has likely malfunctioned due to an electrical fluctuation. The only solution is to call technical service for repair.

• The standby light is on, but you cannot trigger the system to turn on via the remote or the TV buttons.

In this case, a motherboard failure is likely, though it can occasionally stem from the power supply board as well.

• The TV is working, but the screen flickers or is not operating efficiently.

This is a problem often seen in LCD TVs, and it is usually a distribution issue with the light source provided by the inverter.

TVs can experience many different problems depending on their brand and model. It is not possible for us to know every single one or explain their solutions in a general sense. However, when asked why a TV malfunctions, the common response from every brand in almost every situation is: electrical fluctuations, high voltage, and power flickers—all entirely electrical errors.

As Trimbox, we prevent your TVs from burning out due to overvoltage, including lightning strikes and transformer explosions, and we eliminate the resulting fire risks.

Simple precautions sometimes save lives. The best investment we can make for our family, our business, and our environment is protective measures. With Trimbox and GNDSeries, you can be protected from electricity-related damages and electrical contact fires caused by them.

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