3 boot keyboard lights flashed. Then there is no reaction of the
[Users questions | Browse:90 | Favorites]
Users questions: ps keyboard, try to get someone good that can be inserted several times more than normal to boot sometimes and sometimes can not move forward with the use of the illuminated lights are immortal. Note that set the bios online; Device Manager and Control Panel does not detect the keyboard is turned on by F8del not work. The keyboard problems, sometimes also with 77 7777 suggest the keyboard to another computer to test, if it is your failure to repair or replace the keyboard, if not about fault repair the system. 1, fixed to the boot press F8 advanced options appear to let go, choose "Last Known Good Configuration" Enter repair. 2, boot into safe mode by F8 In the exit, reboot or shut down in the boot option, you can enter normal mode (fix registry). 3, if the fault persists, please use the system comes with the system restore, restore to you the fault does not appear when the repair (or use System Restore to restore the software.) 4, if the fault persists, use the system disk repair Complex, open a command prompt, enter the SFC * SCANNOW Enter (SFC and * a space between), insert the original system disk repair system, the system will automatically compare repair. 5, if the fault persists, set in the BIOS as the first boot device CD-ROM installation disk into the original key by R Choose "Repair Install" button. 6, if the fault persists, reinstall the operating system recommended. Boot the computer keyboard not detected after boot diagnostic methods may not detect the keyboard is bad keyboard, the keyboard has broken the connection, keyboard, insurance burned, the keyboard accidentally into the water or damage caused by keyboard interface board The diagnostic method is as follows. (1) keyboard is not detected after booting the computer keyboard interface can first check whether there are problems. Because it is the most convenient check up, do not split the keyboard. First pull the keyboard cable from the chassis down, and then plug it back again, and then boot to see if the fault disappears, this can be excluded due to poor contact keyboard interface Caused by the failure; If the problem persists, use the multimeter to measure the keyboard interface on the motherboard, if the power measurement to 1,2,5 when a voltage relative to the core 4-core 0, indicating that the connection is broken, find Reconnect Haojiu Hang break; if the interface on the motherboard is no problem, open the keyboard, check Check the keyboard Insurance is normal, if normal, replace; if normal then the keyboard cable connector with a multimeter measuring the voltage is normal; if the motherboard keyboard interface normal and the voltage is not normal here, then break the middle of the keyboard, replace keyboard cable can be. (2) a keyboard button is pressed it can not bounce Troubleshooting Methods: a key is pressed the keyboard can not bounce because some keyboard keycap spring under the age to less elastic, causing the spring deformation, leading to the contact can not be separated in time and thus can not bounce. The fault repair methods are: Cap the spring under the cover sheet replaced, or stretch the spring slightly to regain its Elastic, can be re-installed Cap. (3) press a key on the screen does not respond to fault diagnosis: a key for the screen does not respond within the main board due to dirt, lead to the keyboard contacts and the contacts between the bad, so that key or the key failure of the internal deformation of the aging of spring , Leading to poor contact caused. The fault repair methods are: First, open the keyboard cover, with a soft brush to remove dirt circuit board, while using the keyboard keys following ethanol wash parts in contact with the keycap, cleaning after the test. If the malfunction persists. Then again, open the keyboard case, replace the problem The key can be.
- I want to upgrade next computer, playing modern air combat?
- Watching high-definition video settings problem
- Point does not light up
- Hardware problem! ! ! ! ! Urgent! ! ! ! ! ! ! ! I am online, etc.! ! ! !
- Jetway P43 or not to support VT is
- My computer automatically restarts and blue screen
- NVIDIAGeForce8400SE (521 megabytes)
- This line is inserted where?
- Ask for advice: run four or five minutes after the computer automatically shut down
- Tongfang love C2650-X002
- This information provided by the users.Thanks!
Computer Knowledge Copyright 2005-2015 All Rights Reserved.