What are the common faults of the monitor?

ByEverett Wilkens 2020-01-20 2318

If the monitor takes a long time, all kinds of glitches will follow. Experts believe that to solve these glitches is actually very simple, with a pair of eyes can see where the fault lies.

Common malfunction one: when the computer is just turned on, the screen of the monitor shakes so badly that sometimes even the icon and text can not be seen clearly, but it will return to normal after one or two minutes

This phenomenon often occurs in wet weather, which is due to moisture inside the display. To solve this problem thoroughly, use the moisture-proof sand in food packaging to string together with cotton thread, then open the back cover of the monitor and hang the moisture-proof sand near the neck and tail of the picture tube near the tube seat. In this way, even in wet weather, the above problems will not occur again.

Common fault 2: after the computer is turned on, the monitor only hears its sound but does not see its picture, and it is pitch black. It will take dozens of minutes for the picture to appear

This is caused by the leakage of the picture tube holder and the tube holder needs to be replaced. Remove the back cover and you can see a small circuit board at the end of the picture tube, and the tube seat is welded to the circuit board. Carefully unplug the circuit board, then weld off the tube holder, go to the electronics store to buy the same tube holder, and then weld the tube holder back to the circuit board. At this time, do not rush to put the circuit board back, first find a small piece of sandpaper and carefully wipe the protruding pin at the end of the picture tube with sandpaper. In particular, we should pay attention to the oxide layer on the pins. If you don't wipe it clean, you will soon have a relapse. Put the circuit board back and you're done.

Common fault 3: there are always lingering interference clutches or lines on the monitor screen, and there is also an annoying noise in the speakers

This phenomenon is mostly caused by the poor anti-interference of the power supply. If you are too lazy to start, you can replace a new power supply. If you have enough hands-on ability, you can also try to replace the filter capacitor in the power supply, which often works; if the effect is not obvious, you can replace the switch tube at the same time.


Common fault 4: monitor blurred screen

This problem is mostly caused by the video card. If it is a new video card, it may be that the card is of poor quality or incompatible, and that the correct driver has not been installed. If the video memory is added to the old card, it may be due to the difference between the newly added video memory and the original video memory model parameters.

Common failure 5: black screen of the monitor

If no signal is transmitted to the monitor due to damage to the video card or disconnection of the monitor, the indicator light of the monitor will keep flashing to indicate that the signal is not received. If the resolution is set too high, a black screen will appear if it exceeds the maximum resolution of the monitor, and the heavy ones will destroy the monitor, but the current display has a protection function, which will be protected automatically when the resolution exceeds the set value. In addition, hardware conflicts can also cause a black screen.


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