Tips for Laptop Screen Repair

Three Tips for Laptop Screen Repair :

1.  Do not take your laptop to a PC repair in Surrey for laptop screen replacement
when you notice a flickering image on the laptop. In many cases it is not the screen
that is causing the problem. The problem may lie with the inverter which supplies
power. Replacing the inverter will do the trick.


                    

                                                       Laptop Screen Repair
 
 
2.  If the screen is lit, but displays only white colour then the problem must be in
the connection between the system board and display. Tighten it if it is loose and
replace it if is damaged.

3. The laptop computer repair people also told me that in quite many cases where
people complain of a faint display on their laptops, they have either accidentally
lowered the brightness from under the power option in the control panel of the
operating system, or the backlight of the screen is not properly adjusted.

How to remove Virus from USB Drives

Remove Virus from USB

One of the ways by which a virus can infect your PC is through USB/Pen drives. Common viruses
such as ’Ravmon’ , ‘New Folder.exe’, ‘Orkut is banned’ etc are spreading through USB drives. Most
anti virus programs are unable to detect them and even if they do, in most cases they are unable to
delete the file, only quarantine it. Here are the things which you can do if you want to remove such
viruses from your USB drives.

•  Whenever you plug a USB drive in your system, a window will appear similar to the one shown

•  Don’t click on Ok , just choose ‘Cancel’.

•  Open the Command Prompt by typing ‘cmd‘ in the run box.

•   In the command prompt type the drive letter: and press enter. 

•  Now type dir /w/a and press enter.

•  This will display a list of the files in the pen drive. Check whether the following files are there or not:

                • Autorun.inf
                • Ravmon.exe
                • New Folder.exe
                • svchost.exe
                • Heap41a
                • or any other exe file which may be suspicious.
 

•  If any of the above files are there, then probably the USB drive is infected.

•  In command prompt type attrib -r -a -s -h *.* and press enter.

•  This will remove the Read Only, Archive, System and hidden file attribute from all the files. 
•    Now just delete the files using the command del filename.

KEYBOARD TESTING

KEYBOARD TESTING GUIDELINES

Locate a keyboard; notice the appearance of the keyboard.

  

 KEYBOARD TESTING

1.     There are 2 kinds of keyboards:

o   XT keyboards.

o   AT keyboards.

         XT keyboards are usually 83-key keyboards.

        AT keyboards are usually 101-key keyboards.

        Some keyboards have an XT/AT mode switch on the bottom.

2.     Plug the keyboard into the appropriate test PC and turn on both the monitor and PC.

3.     Use some kind of software to test the keyboard's operation (Checkit, XT or AT diagnostics, etc.)

4.     If the keyboard works properly (that means ALL the keys work), label the keyboard and store it in the appropriate place in the lab.

5.     If the keyboard does not work correctly, test and make sure that the keyboard is attached to the correct PC.

6.     If the keyboard is REALLY DEAD, indicate this on the dead keyboard log and dispose of the keyboard.

7.     If you need assistance, let someone know. If you're unsure of whether a keyboard is OK or not, label the keyboard as such and move on.