Why does the multimedia teaching all-in-one machine hear the startup sound but there is no image display when it is turned on? There are several situations in this disorder, which can be solved accordingly.
1. The first one is that there is a sound on the motherboard and the media teaching all-in-one machine is activated, but the screen is black and there is no display. In this case, your TV version may not be activated. You press the button on the front of the tv-power machine.
2. The second is that the screen has a display, the TV is on but the motherboard is not turned on. In this case, you are also pressing the pc-power. If it still does not start, press the button on the side of the ops box. Furthermore, if it still doesn't, then you have to unplug and unplug your ops box to start.
If the above situation can not be solved, you can directly contact the manufacturer here to see if some internal or machine is damaged.
