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For most TV sets, just turn off the power switch when you are done using it. There is no need to unplug the power plug. If you need to move the TV and you must unplug the power plug, turn off the power switch of the TV first, and then unplug the power plug. When using it next time, be sure to plug in the power plug first, and then turn on the power switch of the TV.

Some comrades believe that keeping the power switch of the TV always on and turning the TV on and off by plugging or unplugging the power plug can extend the life of the power switch. In fact, this is a way of making big mistakes, although it protects the power switch of the TV. But v affects the life of the picture tube and other components. The life of the picture tube is closely related to the number of times the power is turned on and off, and the power plug and the socket are likely to cause poor contact due to dust and loose contact reeds. The moment the plug is inserted into the socket, the TV is actually The machine was switched on and off many times. In addition, turning on and off the TV multiple times has a certain impact on the life of components such as the horizontal output tube.

    For individual TV sets, such as Venus C47-P color machine, Venus B40-A monochrome machine, etc., in order to extend the life of the picture tube, the method of preheating the filament is adopted. When using, plug in the power plug first, let the filament warm up for about 1 minute, and then turn on the power switch of the TV. When shutting down, you should turn off the power switch and unplug the power plug. This saves power and helps protect the filament of the kinescope. All the TV sets that need to preheat the filament are explained in the manual.

Article from: http://www.elejintao.com/newsd-nid-17.html