A horizontal line appears on the computer screen of the Acer notebook 4752G, what to do

1. There are two possibilities: (1) there is a problem with the graphics card; (2) There is a problem with the display.

2. (1) If you are an independent graphics card, you can unplug the gold finger with an eraser and then install it to look at it, and you can also click the right mouse button on the computer desktop - Properties - Settings - Advanced - Monitor - Screen refresh rate modified to 75Hz or 80Hz, which may be improved;

2) If it doesn't work, you can change the monitor to see if it's a computer problem or a cable or monitor problem, if you change the monitor, it's a problem with the monitor or line, you can change the monitor cable first and try it.

3) After the above processing, if it still doesn't work, if it is determined that it is a hardware problem with the monitor or computer graphics card, then it will be sent for repair.

3. Related Links.

The possibility of the screen is greater, and if it is determined to be a screen, then the impact should not be large.

If it's a blurred screen, the possibility of the graphics card is greater, and if the graphics card is not repaired, it won't work.

However, it is recommended that you return or return to the factory, this problem will appear in the computer for 1 month, and it is not normal to ask for a new one.

Brother, my computer is also Acer 4752g, and I have only bought it for more than a month, and now a gray line has appeared at the bottom of the screen, and I watched this movie today, and suddenly a line appeared on the screen, and I wiped !!it. This computer is so speechless!

Mine also has a gray line on the screen.,Look carefully at the line that is connected by many points.,Ask the maintenance classmate and say that if it's not a heavy pressure (not think),It may be the reason for the screen.,Go directly to the warranty shop to repair ..........

I'm the same, and I'm asking you to give me a solution!!

Mine too, I've returned to the factory once, and this kind of problem still occurs.

I'm having this problem now, how did you solve it? Thank you very much、、、 my email is 937464917, thank you.

Mine is also this model, and I just bought it, and there is no such problem, you can just find the place where it is sold.

Only one of the above points is clear in the question.

1. The focusing potentiometer of the FBT (line output transformer) is loosened or displaced due to vibration during transportation or use, which changes the focusing voltage added to the CRT (deviates from the optimal voltage value debugged by the factory), causing the screen to be blurred;

2. The humid environment around the monitor causes rust on the discharge ring (semi-sphere) of the focusing pin on the CRT tailstock board, and it is blurry when the CRT is just energized;

3. Due to the impurities in the manufacturing process or the glass shell of the CRT cone, electrostatic dust is generated between the focusing (focuse) pole and the acceleration pole (G2), which forms and resists and causes serious blurring of the screen.

In this case, you will need to change the tailstock or adjust the potentiometer.

Question: I suddenly broke down when I was using it.

Asking questions is not a question of the laptop screen.

Question Okay, thank you.

Screen sliding doors. Fault.

It needs to be replaced. Screen.

It's mostly LG's screen, and it's replaced with.

Samsung. Or AUO's screen will no longer have such a failure.

The common reasons for screen failures such as screen flickering and screen shake are: first, the quality of the screen itself, the aging of the Kai nuclear round screen or inferior products, the LG brand screen has the most chance of this problem, this situation is the first time to see, the second is to collapse, and the screen line contact will not or be damaged. Three.

Mainboard. The screen is not powered properly, or yes.

Graphics. BGA package.

Chip. Virtual soldering.

Damage.

Flower screen. Fault, it is recommended that you send it for repair and testing.

At. Warranty.

Send customer service for maintenance, free of charge (except for man-made damage) After the warranty period, it is recommended that you find a reputable and technical repairer to help you overhaul.

As a rule of thumb, the specific cause requires actual testing.

1) The computer monitor is broken;

2) The cable is broken (for laptops), and the graphics card is broken (for desktops);

3) There is a problem with the motherboard of the computer.

Solution:1Maintenance to distinguish the most critical in the most critical, is the internal hardware is broken or the display is broken, you need to make a reading, the equipment that needs to be prepared is the external display + power cable + data cable.

2.Connect the external monitor to the computer where the problem just now, if the power is turned on, the external monitor will display normally. Explain the following two questions:

1) Desktop, the display is broken. Solution: Replace the display.

2) Notebook, there may be two reasons that indicate that the notebook display is broken, or the cable is broken. But it definitely means that the motherboard and graphics card hardware are fine, and vice versa. The solution is to go to a professional repair shop or after-sales point to replace the display screen or cable.

IDEA Forum:

Think Forum:

Lenovo Community.

1. The screen is blurred due to the increase in the temperature of the computer graphics card.

Solution: Check whether the fan is running normally, add lubricating oil to the fan, clean up the dust in the chassis, and solve the heat dissipation problem to eliminate the fault.

2. The solution caused by the graphics card or monitor not supporting high resolution:

1) Restart the computer, press the F8 key continuously, pop up the advanced boot menu, select enter to enter the "Safe Mode" to log in to the system, then enter the display settings under Windows, select the 16-color state, click the "Apply" button, click the "OK" button;

2) Restart the computer, in Windows normal mode, enter the device manager, delete the graphics card driver, and restart the computer;

3) The graphics card is loose, and unplugging the graphics card and reinserting it after shutting down usually solves the problem;

4) If the system is overheating, including the CPU temperature is too high and the graphics card chip temperature is too high, you can install a cooling fan at the corresponding position in the case, or put the case in a well-ventilated area.

Don't ask if you just bought it, just ask about the after-sales service This should be a defective order.