All Led Lcd Tv panel voltages in sinhala | LED tv display repair lessons sinhala

The specific details about LED TV panel voltages can vary depending on the make and model of the television. LED TVs typically consist of several components, including the LED backlight system and the LCD (liquid crystal display) panel.
LED Backlight System
- LED TVs use LEDs (light-emitting diodes) for illumination. The voltage requirements for the LED backlight can vary based on the design of the TV.
- LED backlights are often driven by LED driver circuits, and the voltage supplied to the LEDs can be in the range of 20-100 volts or more, depending on the specific LEDs used.
LCD Panel
- LCD panels in LED TVs do not emit light on their own; they require a backlight. The LCD panel itself operates with lower voltages.
- The control electronics for the LCD panel, which manage pixel information and control the liquid crystals, typically operate at lower voltages, often in the range of 3.3 to 5 volts.
Power Supply
- The TV's power supply unit provides the necessary voltages for various components. This includes supplying the appropriate voltages to the LED backlight system and other electronics in the TV.
- The power supply unit might output voltages like 5V, 12V, and others, depending on the TV model.
It's crucial to note that working with the internal components of a TV can be hazardous, and attempting to measure or modify voltages without proper knowledge and safety precautions can lead to injury or damage to the TV. If you have specific concerns or need detailed information about your LED TV's internal voltages, it's recommended to refer to the TV's service manual or consult with a qualified technician.
If you provide the make and model of your LED TV, I can offer more precise information based on the available specifications.
Repairing an LED TV can be a complex task and often requires technical expertise. Here are some general steps you can consider, but keep in mind that these are basic guidelines, and the actual repair may vary depending on the specific issue and TV model. If you're not comfortable or experienced with electronics, it's advisable to seek professional help.
In a colour LCD panel, each pixel is made up of three liquid crystals
cells. Pixels do not actually generate the colours that you see. It is the
white light (backlight) passing through each pixel, which filtered to form
the intended colour. The front glass is coated with colour filter material in
front of each red, green and blue dot (cell). Light passing through the
filtered cells creates the colours you see on the LCD.
Each cell or subpixel, can be individually addressed with a control
voltage. This means, for example, that a 15” LCD Monitor screen that
have the resolution of 1024 x768 contains 2,359296 subpixels (1024 x
768 x 3). Occasionally the mechanism that sends the electrical current to
one or more pixels fails; in those instances, you'll see a completely dark
cell (bad cell) or a "bad" pixel. Read more information about bad pixel in
the chapter of “Stuck and Dead Pixel in LCD Monitors”.
#ledtv #led #repair #sinhala

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