The structure of the CRT TV is a vacuum tube with one or more electronic guns inside. When the electronic gun is shot out of the electron beam, the electron beam is shot to the inner side of the screen on the front screen of the vacuum tube.Technology.
CRT TV repair
Model: SF2539 color TV, using (CH-16) movement failure phenomenon: without turning on, the indicator light is not on.Analysis and maintenance: According to the fault phenomenon, the switching power supply is roughly determined that the switching power supply is faulty. The output voltage of each sub -measurement of the power supply is 0V, and there is no short -circuit phenomenon of the ground to the ground. Further determination the failure is in the switching power itself.
CRT TV radiation
The traditional imaging tube TV CRT first performed a close -up test of it. Within half a meter on the front, the moment of normal booting, the radiation value it produced was 0.12 μT, the radiation value during normal viewing was 0.30 μT, when the platform was changedIt is 0.27 μT and the standby status is 0.11 μT. Under normal viewing, the radiation value is 0.28 μT. Generally, it seems that it is close to the alert value.
CRT TV Power
1. The 21-inch color TV is 60W-120W at about 70 watts (of course the state of the new time).The 15-inch computer display is 58-90W of 55W.29-inch color TV 100-170W This will have some gaps for domestic or joint ventures.2. The power of 15 -inch, 17 -inch, 22 -inch, and 35 -inch CRT is 63, 68, 78, and 220w.
CRT TV resolution
In my country, CRT TVs are generally PAL. The original resolution of this TV is 720 × 526, the original resolution of the SDTV -based CRT TV is 720 × 480, the display resolution is 640 × 480 or 704 × 480 The original resolution and display resolution of the EDTV -based CRT TV are the same as the SDTV -based CRT TV, but its advantage is that the image does not flash, clearer, and more stable.The CRT TV with the highest sharpness is HDTV. Its resolution is 1920 × 1080 and 1280 × 720. This is the most advanced CRT TV.
CRT TV meaning in Chinese
The structure of the CRT TV is a vacuum tube with one or more electronic guns inside. When the electronic gun is shot out of the electron beam, the electron beam is shot to the inner side of the screen on the front screen of the vacuum tube.Technology.At present, most thick TVs still use this technology, but it is improved on this technology.There are also many products of this technology, but they have an additional reflection program on the display.Some proper nouns must belong to it, such as scanning one by one, 100hez, and so on.In addition, many new technologies have been developed on the basis of this traditional technology.It is the oldest category of TV.

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