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Computer graphics system is one of the important parts, it will be CPU processed data signal "translated" into the monitor can display analog signals, and display components of the Toshiba PA3400U-1BRS Battery display subsystem. Under normal circumstances, the failure rate is not high graphics, but with the application number and performance improvements, graphics failure rate is also increasing. The main computer monitor as the output device, its quality has a direct bearing on the results, but it is - some friends still relatively unknown. The following are common failures on the real "disease" causes and correct approach described, we want to help!

A common fault of the graphics processing

1, the graphics card driver not installed properly

We install the graphics driver, we often encounter the trouble prompted the installation fails, and the different versions of the driver can not solve the problem, how to properly install the graphics driver do? (1) when the machine starts, press the "Del" key to enter the BIOS setup, find the "Chipset Features Setup" option, which the "Assign IRQ To VGA" is set to "Enable", then save and exit. Many cards, especially the Matrox graphics card, when this is set to "Disable" generally are not correctly install the driver. In addition, for the toshiba satellite a80 ac adapter card, the first will set the standard VGA graphics card and then install the supplied drivers. (2) After installing the operating system, be sure to install the motherboard chipset patches, especially for the use of VIA chipset, the motherboard must remember the latest 4IN1 install patches. (3) install the driver: Go to "Device Manager", right-click "Display Card" under the card name, then right-click menu "Properties." Into the graphics properties, then click "Driver" tab, select "Update Driver" and select "Display a list of known device drivers can choose a specific driver", when the pop-up list of drivers, choose "Have Disk" . Then click "Browse" button in the Find pop-up window, find the folder where the driver, click "Open" button to finalize. The driver has appeared in many shows in the list the name of the chip, based on your type of graphics card, select a press "OK" to complete the installation. If the program is a non-WHQL version, the system will pop up a warning window, do not ignore it, click "Yes" to continue the installation, and finally the system can be prompted to restart your computer. In addition, the graphics card installed in place, often also cause driver installation errors, so the graphics card installed, be sure to pay attention to cheat to be fully inserted into the AGP graphics card slot.

2, the TOSHIBA PA3123U-1BRS Battery starts black screen failure

Start the computer, if the display a black screen phenomenon, and the chassis of a long two short horn sound the alarm, then the card is likely to lead to failure. First, to determine whether the graphics look bad cause of failure: Turn off the power, open the case, pull out the card, then use hair brush to clean the dust on the graphics card out, in particular, pay attention to the graphics card fan and heat sink on the dust disposed of. Then wipe board with eraser back and forth, "Goldfinger." After completion of this step, re-install the graphics card (be sure to baffle screwed) to see if the problem has been resolved. In addition, for the bad graphics card, such as some poor gap baffle behind the chassis and motherboard Toshiba PA3399U-1BRS Battery slot is not aligned, tighten the force screw graphics card after a period of time may cause deformation of the PCB graphics card failure , try to release the video card as long as the screws. If you are using the motherboard AGP slot is not very good material, AGP graphics card slot and the PCB can not be in close contact, you can use duct tape to card bezel, if it does not grasp that put the graphics card installed on both sides of the chassis , the graphics card in the middle of the plate. If your display card cheat encountered oxidation problem, and rust stains with clear rubber after graphics card does not work, you can use rust remover clean finger, then gently putting the finger on a layer of solder, to increase the thickness of the finger, but must be careful not to short circuit between adjacent finger.

If the above method does not solve the problem, then there may be compatibility problems with the motherboard video card, then you can also get a graphics card plugged into the motherboard, if the fault is removed, then the compatibility problem. Of course, users can also plug in another piece of the graphics on the motherboard, if there is no failure, then this card with the original motherboard compatibility issues do exist. For this failure, the best solution is to change a graphics card or motherboard. Another case worth noting is that graphics hardware problems, and generally display memory chip or burn, it is recommended to get the card on another machine to try, if only to confirm the problem is the graphics card replaced.

3, shows the failure Huaping

Huaping graphics display is a relatively common fault, most of the graphics Huaping failure caused by graphics card itself. If the boot display on Huaping then, should first check the video card heat problem is not there, his hand touching the memory chips of the temperature, take a look at the graphics card fan is stopped. Again to check the Toshiba PA3399U-1BAS Battery slot on the motherboard if there were dust, finger to see whether the graphics card is oxidized, and then according to the specific circumstances of the dust removed, use an eraser to the oxidation of part of the finger polish. If there is indeed a heat problem, we can use another memory to install the fan or heat sink in the solutions. If you are playing games or doing 3D, Huaping, then we would consider is not due to graphics driver is not compatible with the program itself or the drive caused by the existence BUG, ​​you can change to try a version of the graphics card driver. If the above method does not resolve the problem, you can try to refresh the graphics card's BIOS, graphics card manufacturer to see if there is not the home page to download an updated Acer GARDA53 battery. But pay attention - the same manufacturers of the same type of graphics card BIOS file is not always the same, so that BIOS update is still a certain risk.

In another case, the monitor or video card does not support high resolution display Huaping often also cause failure. When such a failure that we can switch the startup mode to safe mode, enter the display settings under Win 98, 16-color mode click on the "Apply", "OK" button. Restart in normal mode Windows 98 system, delete the graphics driver, and then restart the computer. Of course, in pure Dos environment, edit the SYSTEM.INI file, will display.drv = pnpdrver to display.drv = vga.drv, the save and exit, and then update the driver in Windows, that is the problem. In addition, the expanded memory can easily lead to inappropriate video, in order to avoid trouble - in the extended memory should use the same brand, same speed of memory.Acer Tavelmate 430 Keyboard

Two, CRT monitors common faults

Currently we are most commonly used or CRT monitors, but with the increased use of time, CRT monitor's internal components, some parameters will change, resulting in failure of the display, and many of these failures can be adjusted by adjusting the display of certain components within the solution . However, because there are high voltage power monitor, the problem appears more serious abnormalities should be promptly sent to the maintenance of professional service points, and not their own dispose, in order to avoid fire, personal injury and other hazards.

1, the display color cast problems arise

Display there is the phenomenon of color cast we often encounter the problem, its causes are: monitor near magnetic items were magnetized; moving the monitor, so that the shifting of the machine deflection coil, resulting in poor color purity; degaussing circuit damage and so on. Of course, should first rule out the graphics card and display the signal line, a lot of time will result in poor contact signal lines appear on the display color cast problem.

And in most cases is likely to cause the display to be magnetized. CRT monitors will be a strong magnetic field the magnetization of the emergence of what color cast problems, such as magnetic shielding without the subwoofer, are generally better display itself with a certain amount of degaussing function, but for some of the more serious of the magnetization on the powerless the. Then you need to use specialized equipment for degaussing. Demagnetizer can be purchased, also be made. But no matter what kind of degaussing method, and friends should pay attention to safety. Powered Acer Ferrari 1100 battery constantly shaking hand, and gradually close to the screen, the site can be repeated with the magnetic, and then back while shaking side to the degausser about 2 meters away from the screen and then turn off the power. Each power-on time should not be too long, degaussing effect is not good if one can be repeated several times.

If it is the color cast caused by moving your monitor, we can open the back cover of the deflection coil restored the monitor to its original position and tighten the screw deflection coil. Degaussing circuit for the machine for damage caused by poor color purity, can first check whether the damage to the thermal demagnetization resistance, to remove it, use the hand as issued "buzzing" sound, for the thermistor is bad. Pin with a multimeter check the resistance value, such as the resistance is less than 8 ohms or greater than 50 within Europe and then the degaussing resistor Acer AS09B56 battery components are bad, there is no way the only ones. If degaussing resistance is normal, it should focus on examination of degaussing coil wire, plug, socket and contact between the loose problem of the poor.

In addition, there is a failure because it is easy to overlook - the screen can lead to excessive dust when the reddish white screen! Such a failure occurred in a warmer color temperature display (many monitors can set your own color temperature), so that the white face (Acer Aspire 3935 battery) reddish fault your best is to clean the screen after the other Check if the fault disappears - you can avoid detours it! Of course, some models of the brightness value is set too low can also cause this "failure" phenomenon.

2, can not adjust the refresh rate of failure

In the "Display Properties" in the display refresh rate can not adjust, I am afraid my friends have experienced it! In fact, most can not adjust the monitor refresh rate is because we do not select the correct type of monitor or graphics card driver is not installed correctly for this. Display type of choice is often easily overlooked, many users will display type is set to "SUPER VGA" and the like, the result will cause the graphics card can not adjust the refresh rate problems. To know the wrong refresh rate parameters are likely to harm the display, so the system does not recognize the monitor, should be under the most conservative default settings (Acer BTP-36D1 battery). The solution is in the display properties, select the correct monitor type, if you are using Windows does not recognize, you can easily select a performance close to the product substitution. If the reason is the driver, the user can re-install the driver, because sometimes suddenly crashes, the graphics card driver is lost.

Again, do not set the monitor refresh rate too high, more than the standard refresh rate too much, does burn monitor or shorten its life. This display is best to install their own drivers, do not blindly use high-end display driver. Second, Windows in "hidden refresh rate monitor does not support" items are not removed, otherwise it will cause the user to use the monitor's refresh rate is not supported.

3, the monitor has screen jitter failure

Sometimes the display would somehow shake up, and you keep seeing the screen jitter can not know why, is not it annoying ah! This condition can cause eye fatigue, Acer Aspire 5720 Keyboard users, computer users over time will bring to the eye. Reasons for such failure caused the following areas:

(1) bad power supply or power supply equipment has been aging: often used by brand-name computer power supply components, materials are poor, it is likely to cause the Acer Aspire one 751H Keyboard power supply circuit or poor ability to keep up, when the system is busy, the display In particular, the screen will appear the phenomenon of jitter. PC power supplies begin to age, also likely to cause the same problem.

(2) monitor refresh rate settings are not correct: the display resolution and refresh rate set too high or too low, then it may cause such a failure, so you can set the resolution and refresh rate try intermediate values ​​(note : long-term work in the overclocked state that certain components of aging and this failure, but more difficult to find the point of failure).

(3) graphics card is bad: re-inserted display card, the fault can be resolved.

(4) virus trouble: Some computer viruses may disrupt the display.

(5) Windows 95/98 system write cache cause: such as belonging to this reason, in the Control Panel → System → Performance → File System → Troubleshooting disable all drive write-caching, you can solve the problem.

(6) power supply filter capacitor damage: open the case, if you see the power supply filter capacitor (the biggest kid in the capacitor circuit board) at the top of muster, indicating capacitor is bad. Another capacitor problem solving.

(7) speakers and monitors too close: Some speakers will interfere with the magnetic field effect display to work properly.

(8) power transformer and chassis from the monitor too close: Many peripheral power transformer (Acer Ferrari 4000 Keyboard) will result in a larger work electromagnetic interference, cause a screen to shake. Power transformer on the chassis and the monitor away from the place, the problem can be solved.

Third, the liquid crystal display common faults Asus M9J battery

1, there issues water ripple and Huaping

The first thing to do is carefully check the existence of computer peripheral sources of electromagnetic interference, and then replace a graphics card or monitor to another computer, verify that the card itself is no problem, and then adjust the refresh rate. If you exclude the above reasons, it is likely that the quality of the liquid crystal display, such as the existence of good thermal stability problems. There is a ripple of water quality of the more common LCD problem, they can not solve, the proposed replacement or repair as soon as possible.toshiba satellite r25 ac adapter

Some LCD monitors at startup Huaping problems, feels like a high-frequency electromagnetic interference, as the writing on the screen is very fuzzy and jagged. This phenomenon is generally due to the graphics card does not have digital interface, and through the internal digital / analog conversion circuit connected to the VGA interface card. This connection forms solves the problem of matching the signal, but it brings susceptible to interference and distortion problems. The reason is mainly because the LCD display itself is difficult and the input clock frequency of the clock frequency of the analog signal synchronization to keep one hundred percent, especially in the analog sync signal frequency changing, if at this time LCD synchronization circuit, or synchronized with the video signal transmission line connected to a short circuit, poor contact and other issues, but can not adjust to maintain the necessary follow-up synchronization relationship, it would appear Huaping problems.Asus M9V battery

2, the display resolution is set incorrectly

As the LCD display is completely different principles and CRT monitors, which are a direct one to one pixel display. Work in the best resolution of the LCD display shows the output of the analog video signal processing, with a specific address into information (the pixels on the screen of the absolute address) of the display signal, and then into the LCD panel, directly to the display signal added to the corresponding pixel on the drive pipe, some with memory addressing and write similar. So the LCD monitor's screen resolution can not be arbitrarily set, and the traditional CRT monitors for a resolution supported by more flexible. toshiba tecra 9000 ac adapter can only support so-called "real resolution", and only in the real resolution to show the best image. When set to true resolution than the resolution, usually screen by expanding or narrowing the scope of the display remains unchanged, more than some of the black handle. Such as liquid crystal displays working in low resolution 800 * 600, if the display still use one to one pixel is displayed, then it can only use the screen narrow the center of that center of the screen 800 * 600 pixel display, although picture is still clear, but the display area is too small, not only in the sense that not too comfortable but also for expensive liquid crystal display panel is a great waste. It may also be using the interpolation method, no matter what the resolution remains in full screen, but then the display will be greatly reduced. In addition, the refresh rate of toshiba tecra a1 ac adapter picture quality settings and there is a certain relationship. Friends according to their own situation to set the appropriate refresh rate, under normal circumstances is set to 60Hz or better.