Multimedia teaching machine if the black screen, blue screen should be how to solve?

Multimedia teaching integrated machine is widely used, but many friends in the process of use often occur some minor faults, such as the equipment suddenly occurred black screen, blue screen, unable to touch and so on. Multimedia teaching integrated machine if suddenly appeared black screen should be how to solve:

In the first case, there is sound and no image.

If there is sound but no image, it is necessary to check whether the connection between the high voltage bar and the screen or the motherboard of the teaching integrated machine is disconnected, because the reason for the sound and no image may be that the backlight of the screen does not work properly. If it is detected that the connection line is disconnected, timely plugging the connection line can eliminate the fault. If not, then it may be the reason that the high voltage bar or the motherboard is damaged, it needs to consider maintenance or replacement of the high voltage bar or the motherboard.

In the second case, there is no sound and no image.

If there is no sound and no image, it is necessary to first check whether the equipment is correctly connected and powered on to ensure the normal operation of the teaching machine only when it is powered on. If not, try to restart the equipment. If the multimedia teaching machine still has no sound and no image after several restarts, it is recommended to check the motherboard first to see if there is a problem with the motherboard. If it is the cause of the motherboard, it is recommended to contact the manufacturer or seek professional personnel to repair or replace it.

The reason for the black screen is usually hardware failure or software conflict. When a fault occurs, what we need to do is to check the location and time of the fault. First, check whether the power connection wiring board is faulty, remove the relevant supporting parts of the computer, and install another set of usable equipment to check whether the power connection wiring board works normally. If there is no fault between the power supply and the wiring board, check whether the connection between the computer power supply and the motherboard is normal according to the normal procedure, that is to say, check whether the motherboard is in the normal power supply. If it still fails after the above investigation, it is recommended to contact the manufacturer or seek professionals to solve it. Whether the power connection line is normal, whether there is sound or no sound, if there is neither sound nor image, then directly contact the manufacturer for after-sales treatment.