The monitor always turns on and off automatically What is the problem 30

The second floor is reasonable, but poor contact with the data cable will cause this phenomenon.

The same can happen if the graphics card breaks.

This is the case when there is a problem with the high-voltage part of the monitor.

This can also be the case when the digital circuitry of the display fails.

Of course, the switch may not be broken, but this possibility is not big, if the switch is broken, you can pat the switch to try.

The following possibilities: 1. There is a problem with the wiring of the monitor (you can change it to another machine to look down).

2. The monitor is broken...

Erda, handwriting).

The switch is broken, glue it up.

There are three main reasons for this:

1. The micro switch on the LCD keying board (boot button) is broken;

2. Aging of display tubes;

3. The power board or high-voltage board is faulty.

First check the micro switches on the keypad, if there is a short circuit, it is best to replace them all with new ones. Generally, the boot button is out of control, and it should be a problem with this board.

Here, you give the most points, and no one else can help you because your monitor is broken and needs to be repaired. Give the silver and it will be solved.

There are 2 reasons for this:

1. The reset button of the monitor power on is invalid.

2. The circuit of the main board of the display power supply is virtually connected and the contact is poor.

Open the case and plug in the memory module again.

The price can't be said You'd better find a friend who understands a little bit to take a look, if you take it out for repair, you will definitely have to overhaul it, or even let you change the monitor directly

There's a problem with the high-voltage strip inside the monitor.

Reasons for automatic switching of computer screens and how to deal with them:

1 Computer host problems.

Because the black screen occurs in the standby state, the computer will turn off the display after a certain period of standby to enter the energy-saving state, but some hosts can standby normally, and when you want to use the machine, there will be a problem when you exit the standby state, and the computer will not respond; That is to say, he can't change back to normal working state, of course, the monitor does not receive the signal that the host is turned on and will not light up, if the standby screen is black you press any key on the keyboard If the hard disk flashes, it means that the host can switch between normal and standby state.

2 Graphics card issues.

Some graphics card problems are frequent black screens, no obvious rules belong to hardware problems, if the graphics card does not output the normal line signal required by the display, the display will change from a green light to a red light standby state, if you are sure that the computer system is fine, the graphics card driver is fine, that is the graphics card itself has a problem, it is recommended that if it is a new computer as soon as possible to go to the dealer to detect and replace.

In fact, it's a problem with the graphics card or a problem with the display, the easiest way is to find a graphics card or monitor to replace it, If you rule out the first point, it's easy to tell which part of the problem is.

It's a quality issue with the display. Typical faults are: the electronic components on the circuit board are broken down or caused by virtual soldering, and the problem can be solved quickly by sending it for repair, but some liquid crystal displays, such as benq04 and early 05 out of a batch of 15-inch and 17-inch liquid crystals, some of them still have the same problem after a period of time after maintenance, and need to replace the high-voltage board to solve.

So consider your current situation: 1The monitor has a warranty, and immediately take it to the dealer for warranty; 2.

After the warranty period, the replacement of components is generally 50-80 yuan, and the replacement of high-voltage plates is generally 120 yuan. 3.LCD is now very cheap, if your LCD was bought a few years ago, and the economy doesn't care about 600 yuan or so, just change it, the first new display circuit and other solutions are more mature, and the second new color and response time and resolution are also more powerful.