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1. If an external signal source is transmitted to the antenna interface of the TV through a signal line, it may turn into snowflakes at this time, and the signal transmission may be interrupted due to loose lines; It is also possible that the signal receiving device fails to cause snowflakes, so you can reconnect the line and test it; If the signal receiving device is faulty, you need to contact after-sales maintenance to solve it. 2. If the external signal source is connected to the AV interface or HDMI interface of the TV set through the AV cable or HDMI cable, it will turn into snowflake at this time because the user mistakenly presses the remote controller to switch the signal source mode of the TV set, that is, the AV or HDMI mode is switched to the TV mode, and there is no signal input in the TV mode, so the TV will display snowflake; At this point, the user can press the signal source key of the remote controller, select AV mode or HDMI mode to switch, and then return to normal. You can also switch signal source modes one by one until the TV returns to normal picture.
3. If there is something wrong with the TV picture tube, you should take the TV to the home appliance repair point to replace the picture tube, because the general TV picture tube is difficult to repair, even if it is repaired, the definition of the TV may be affected.