Sub-beam detection device of sub-screen television receiver

摘要

In this case, the hatching mask was detected on CRT by separating the bunch of hatching surface from that of main flower surface.The emission beam detection device of the incubation cotton TV set in this ancient case synthesizes and synthesizes the video signal of the incubation surface and the video signal of the incubation surface synchronously.After processing such synthetic signals, the main flower surface is divided into several parts to produce hatching surface,After the output beam quantity is detected from the electron gun, according to the detected beam quantity, a hatching surface television with automatic brightness limitation is provided,Synchronous switching with the above black pulse determines whether the expansion means for the beam output of the main flower cotton is adopted,In the above blog pulse, it is synchronously converted to decide whether to choose the stretching means that dominate the cotton output and the two stretching means to choose the action. There is a butter means that can be reversed into a hot pulse pulse.