How to tell if a newly purchased TV is a "store model?" How to solve?

Nowadays, for most users, if they buy TV, they will choose offline channels or online flagship stores. No matter where they buy TV, they may encounter a problem. If someone takes the old TV, or the “prototype” in the store, How can consumers differentiate when they come out to sell?

1, see the packaging of goods. The outer package of the new goods is intact and clean. The plastic bag inside the open carton should be intact and untouched without any dust. The old packaging is certainly not so perfect.

2, look at the TV shell. The case of the new machine should be a bit shiny, and it can reflect a little bit of luster in the light. Gently wipe with your fingers and see if there is no dust on the fingers. The casing of the old machine looks very rigid and unglazed, and the casing is surely covered with dust. Some people deliberately wiped the dust on the case with a cloth, but in some places, he could not wipe off the dust, such as screw holes, cooling dust.

3, watching the TV screen. The screen of the new machine is bright as a mirror, and no scratches can be found on the top, and there should be no dust. The old machine may have scratches and impressions left by the fingers.

4, watching TV power cord plug. The metal plate of the power cord plug of the new machine has no traces of plugging and unplugging. For a TV set that has been used for many times, the metal plugs of its power plugs generally leave traces of contact during plugging and unplugging.

5, see the image. The new TV's image is quite clear, the color is very vivid, adjusting the brightness, the contrast is very obvious, black and white images are very obvious, that is when playing black and white images, black is white or white, should not Do not add any colors that you should not have. The lack of brightness of the old machine, and the color is not realistic, adjust the brightness, the range of change is significantly reduced, black and white images have other noise. This difference is also an important method for refurbishing machines.