What is the general service life of TV sets?

The life span of traditional CRT TV is 20000-25000 hours; The life of LCD TV can reach 60 thousand hours; The lifetime of PDP plasma TV screen is 40,000-50,000 hours. As long as there is nothing wrong with the TV, it can still be used normally beyond its service life. The average is around 10 years, and some of them break down in a few years.

Extended data:

principle

Television is mainly composed of tuner, audio head, audio channel, common channel, synchronous scanning channel, color control display and power supply. It works as follows.

The signal received from the antenna passes through the tuner, selects the high-frequency TV signal, amplifies it, and then sends the fixed intermediate-frequency TV signal.

The common channel consists of an IF amplifier, a video detector, a video amplifier and a picture tube. The IF amplifier amplifies the IF signal from the tuner to a sufficient amplitude, which is detected by the video detector, removes the IF carrier, recovers the image signal, and converts the second audio IF signal.

After the video is amplified, the image signal is sent to the cathode emitting electrons in the picture tube to control the aggravation of the electron beam emitted by the picture tube, and the image can be displayed on the screen.

People's Network-Service Life of Common Household Appliances