Crt Tv Circuit Diagram Pdf

By | August 5, 2022

A CRT TV circuit diagram is a schematic representation of the electrical connections and components of a cathode ray tube (CRT) television. It shows how the different parts of the TV work together to create an image on the screen.

The CRT TV circuit diagram typically includes the following components:

  • The power supply
  • The video amplifier
  • The horizontal deflection circuit
  • The vertical deflection circuit
  • The picture tube

The power supply provides the electrical power needed to operate the TV. The video amplifier amplifies the video signal from the TV tuner to a level that can be used to drive the picture tube. The horizontal deflection circuit generates a sawtooth waveform that is used to scan the electron beam across the screen. The vertical deflection circuit generates a staircase waveform that is used to move the electron beam up and down the screen. The picture tube converts the electron beam into a visible image on the screen.

The CRT TV circuit diagram is a valuable tool for troubleshooting and repairing CRT televisions. By understanding how the different components of the TV work together, you can quickly identify and fix problems.

Here is a more detailed explanation of the different components of a CRT TV circuit diagram:

  • The power supply converts the AC power from the wall outlet into the DC power needed to operate the TV. It typically includes a transformer, a rectifier, and a filter capacitor.
  • The video amplifier amplifies the video signal from the TV tuner to a level that can be used to drive the picture tube. It typically includes a transistor or an integrated circuit (IC).
  • The horizontal deflection circuit generates a sawtooth waveform that is used to scan the electron beam across the screen. It typically includes a transistor or an IC, a coil, and a capacitor.
  • The vertical deflection circuit generates a staircase waveform that is used to move the electron beam up and down the screen. It typically includes a transistor or an IC, a coil, and a capacitor.
  • The picture tube converts the electron beam into a visible image on the screen. It typically includes a cathode, an anode, a focusing coil, and a deflection yoke.

By understanding how the different components of a CRT TV circuit diagram work together, you can quickly identify and fix problems. If you are having trouble with your CRT TV, it is a good idea to consult a qualified technician.


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