Hardware | Software | Internet | OS | Communication | Software Development | Safety and Protection | IT Industry | Computer Technology |

Computer Knowledge Home -> Hardware-> Display Equipment >> How to determine the computer screen is broken

How to determine the computer screen is broken

Users questions: Computer screen with a long time (sometimes only half an hour) will flash, then black out, all black after opening without opening the main power only when the host, the display light is not bright. To be over a number of time (1 to 2 hours) and then boot yet available. the power cord is the investigation, it seems not a big issue, then the computer is a computer blank screen Defective or has a bad screen? 7,777,771. When the display is blank no image is displayed (the display currently on the market, but no signal sent to the host, the screen will display "No signal cable"), first check the host power is a good plug, power supply fan spins? Host Panel power LED, HDD LED is not bright flash? If the system does not work because the power supply or motherboard no electricity, the monitor signal is received in the absence, of course, there will be no image displayed. 2. Check the monitor and then plug the power supply is good? If your monitor's power switch is a touch switch, When you power up the monitor, you should hear a slight "provision pop" sound, then the monitor can determine the switching power supply circuit is good. Then the monitor's power switch is turned on? Monitor power light is lit? When the hand near the display screen and slowly move had been "hissing" sound, while hand The hairs on the feeling of being sucked, which checks the monitor is working the high-voltage circuit. 3. If it is determined the display has been added to electricity, and there is high pressure occurs, continue to check the monitor cable connector and the signal output interface card is a good contact? Are there loose? Unplug and then check, D-type interface for bent or broken needles or have a lot of dirt. This is a problem often encountered in many users, when connecting the D-type socket, non-uniform force, or forget to tighten the screw interface, the interface to loose cause bad contact, or because of improper installation or excessive force, so that D There are needle-type interface, or Curved needle, resulting in poor contact. Note: the data display 15-pin plug may have a shortage of needles, such as 4,9,11-pin, then normal, do not artificially supplemented by other wire to pin these missing bits, so as not to cause other problems. More said that it: 1,2,3-pin for the red, green, blue Three shots signal input, if any of you bad needle contact with the screen there will be lack of appropriate color. If the first pin 12,15 there is a problem, the host can not find the appropriate display, but this does not affect use. If the first pin in question 13,14, the display will appear black, the display lights in the boot From green to orange after a while. Also appeared in one of the black screen. 4. Open the case to check the display card is installed correctly? Is in good contact with the motherboard slot? Video card or slot is too long and the use of too much dust, as well as causing poor contact? Whether the chip on the graphics card burned, cracking Traces. When the causes for black screen graphics, the computer POST a short time that is four long, "Didi," audible. Installing graphics card, graphics card to hand hold the upper part, even forced into the slot, so that the screw graphics port and port match the main chassis of the screw. Do not force plug is not fixed, making Into the graphics distortion. If the confirmation is installed correctly, you can remove the card wipe with alcohol cotton ball for about pin cheat, or a slot (only for PCI cards) installed. If does not work, can only be a good graphics card for a try the next. If that does not, in determining the graphics intact, they must also consider the graphics and the main Board compatibility. Best to check the relevant information or ask friends. 5. Check the other boards (including sound cards, Decompression Card, video capture card) slot on the motherboard is good exposure? Note Check the hard disk drive data cable and power cable connection correct? Replace other card slot, cleaning pins. This is often easy to overlook many people. Generally believed that black screen computer monitors and graphics cards is the issue, and other device-independent. In fact, because the sound card and other equipment is not installed correctly, cause the system to be completed in early to make of the difficult, especially in the hard disk drive data cable and power cord wrong, likely to cause no display failures. 6. Check the memory is good contact with the motherboard? Reseat the memory or try another slot, or the replacement of the memory. If the memory problem, the computer starts, there will be a continuous rapid "Didi" sound. Tone varies because of the motherboard. 7. Check the CPU and Block access to CPU on the motherboard is good? Due to moving or other factors, the CPU socket with the SLOT1 jack or SOCKE370 bad. Best removed by hand pressing a CPU or CPU and then re-install again. 8. Check the CPU FSB, multiplier, memory frequency jumper or C
  • This information provided by the users.Thanks!
Trade Company Database Computer Question United States Company Directorys MotorbikesTip
Computer Knowledge Copyright 2005-2015 All Rights Reserved.