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Archive for the ‘Keyboard’ Category

How does HP Laptop Keyboard 441541-001 work

07 Aug

Keyboard is the most widely used computer input devices, which consist of keys, conductive plastics, as well as the encoder interface circuits so on.

On the keyboard usually has hundreds of buttons, each button is responsible for a function, when the user presses one, the keyboard encoder can quickly this button corresponding to the code transmitted to the computer through the interface circuit in the keyboard buffer by the CPU for recognition processing. In layman’s terms that is, when the user presses a button, it will be the circuit board through the conductive plastic cable connected to this key generated signal, the signal generated by the keyboard interface, quickly sent to the CPU.

“Keyboard key failure” Trouble Shooting

“Keyboard key failure” This is what we often encounter problems. This phenomenon usually occurs because the circuit board or a conductive plastic on the dirt, making between the two can not be properly connected. Other factors may also be, for example: the keyboard plug is damaged, circuit problems, damage to the motherboard, CPU is not working properly and so on, but not the main reason. Therefore, we only need to carry out descaling their work.

Take HP Laptop Keyboard 441541-001 as an example, operation steps are as follows:
1. Disassemble the keyboard. Note that when you open the keyboard, be sure to button surface (that is, our operations side) down, circuit board up, otherwise, each key on the conductive plastic may have come off, giving you repair trouble.

2. Opening circuit boards, circuit boards are generally made of soft plastic film, the top row of buttons marked with lines, with the concentration of alcohol, preferably more than 97% of cotton (75% of medical alcohol can also be cotton, because I had used , but the best is to use high concentrations of alcohol, cotton) and gently scrub two times in the circuit board. Key part of the line for the failure to take care of several times more.

3. View key failure part of the conductive plastic, if the above accumulated a lot of dirt, the same use of alcohol scrub. Suppose conductive plastic is damaged, then I suggest that you can not key on the commonly used conductive plastic for the damaged part, although this initiative not allow the keyboard to play out all functions, but the most at least it can extend the life of commonly used keys.

4. Remove the keyboard in a corner in the dirt, tools can be a brush, small brush and so on, but note that some action should be gentle.

5. See the module whether the cold solder joint or Sealing-off welding can be carried out repair welding work (using tools such as conductive silver paint, concrete repairs please refer to the next section notebook keyboard repair examples).

6. Install a good keyboard. It should be noted here that we have to wait and then to clean the alcohol evaporates.

More information about laptop keyboards available at http://www.hootoo.com

 
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Laptop Keyboard Maintenance Can Save You Costly Keyboard Repairs

05 Aug

Regular maintenance on your computer can extend its life and save you from needing costly laptop keyboard repairs. Who knows – perhaps it can even extend your own life too.

consider the germs harboring on your keyboard for instance. More than likely you do not rinse your hands everytime before you start to type, not a great deal of folk do. If you have got a white keyboard it is simple to discover how much dust has amassed on the keys but if it’s’s black you do not have a clue.

there’s a constant flow of dust and mud in the air. If you clean your own house, you’ve got a sensible idea of how much dust accumulates in a short amount of time. In some parts of the country where it is more dry and you leave your windows open, you can dust one day and find the dust is back the next . If your table collects that much dust in such a short amount of time, consider how much has built up between your keys over a year or more. It is time to do your personal computer spring cleaning even if spring is long past.

the very first thing you wish to do is disconnect the keyboard from the computer and you may want to label the slot so you remember where to plug it back in. Then turn the keyboard over and very gently shake the board and press the keys to free any particles of dust, dirt or food that dropped between the keys. Turn the keyboard upright again and spray around the keys with a can of compressed air acquired from any computer store. This may dump any remaining particles. Now it’s time to clean off the keys.

There are three ways that you can clean the keys. Do not spray any cleaner immediately onto the keyboard. Take a clean soft material and spray it with a disinfectant then wipe the keys or use disinfecting wipes or dip swabs in rubbing alcohol and wipe each individual key. You’ll be dazzled at how much dust comes off. This straightforward process could save your cash. After everything is clean and dry, plug the keyboard back into its slot. Who knows you may find you can now even type a lot quicker – but don’t count on it.
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Working on my site http://www.bestcomputerrepairinchicago.com

 
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Computer Optimization Services

03 Aug

Your computer doesn’t need computer optimization services only if it will stay new and untouched forever. Over time, temporary files and other software applications create a mess on the hard disk thereby spoiling the functionality of the computer. Every piece of program or hardware that did ever visit your computer left some kind of trash in it, even after a careful removal. This needs to be arranged to bring your system back to life!

The computer has its vulnerable and most affected parts that would require a special care and a periodic renewal. And this does not include computer hardware like keyboard or mouse!

If you ask yourself how your precious machine can behave in such a nasty manner, waste your time and slow down all the processes, you can get easy answers. It is not a smart enough to think about changing your computer or parts of it every time something goes wrong (or simply slow) cause unlike other home utilities, this one has got a brain!

With online computer support companies, you can optimize your system in no time. The technicians working with these organizations are experts in their field and can help you to make the most of your computer! Under computer optimization section, they offer you services like deleting temporary files, internet files, unwanted programs and ensuring efficient working of your computer.

The technicians may create a backup of your documents so that they don’t get lost. It’s done on the on precautionary basis as the restore point serves. It never hurts to have a couple of ways to ensure that you can undo what you did if you need it.

You can ask your computer support worker to load just useful programs and back-up your data. This will help you to run your computer like brand new and avoid situations of losing everything stored in your system. In fact, these resources offer opportunities to small businesses and individuals to back up their data online. People are fast embracing these support services to save their valuable data from being lost due to any human error or theft or virus attack.

Alina Wilson is a technical and security specialist, associated with numerous tech firms including iYogi. iYogi is synergistic ally aligned to offer tech support, Microsoft support, computer repair, PC help services, computer support, online technical support, computer optimizationto its clients in Australia, US, UK and Canada by Microsoft certified technician.

 
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Hack Back Your Computer – Revive Your Lagging Pc

01 Aug

Over time and use with a windows machine you may notice that it does not run as fast as when you first got it.

This is usually because of a number of different problems that can occur with regular use of a computer. The smart computer user knows about these things and how to repair them on their own rather then having to hire a technician to solve the problem, (costing you time with out your computer and usually around 50 dollars an hour).

Possible problems usually include one or many of the following things:

Viruses

They happen, even if you spend all the money you can on antivirus software, you likely don’t even know you have one.

Spam

Loosely falls under the same definition as a virus but with some negligible variations, can also include programs that hit you computer with nasty pop ups and redirect you to web pages you don’t want to visit.

Registry

This is a comprehensive list of all programs that have ever been installed on your computer, sometimes when you uninstall a program some information can still be left on this list, the longer you have your computer the larger this list is likely to be.

To much junk

Unused programs and applications (different browser menus, and other programs)

Start up programs

On the bottom right of your computer beside the clock is usually a bunch of icons. These represent programs that are running on your computer at a given time, the problem is that not all programs that are running display an icon in the taskbar. There is usually much more programs running at a time that you are unaware of.

So lets get started then. Bellow are some tips almost any computer user can performe, to help speed up your computer

1. Restore Point

Before we get started we are going to record a windows restore point. If at any point you feel you’ve made a big mistake you can always go back into the windows restore program and reverte to where you’re computer was at before you tried to fix it. This should give you the confidence to play and adjust settings on your computer without the worry of messing it up. To do this you go to the start menu -> Program files – > Accessories -> System tools -> System restore.

A new program will open from there all you have to do is ask your computer to set a restore point, later if needed you can revert to it. A restore point is a virtual snap shot of your computers settings. It may take a few moments to process.

2. Safe Mode

Because you probably have viruses and unwanted programs slowing down your computer, in order to make the clean up process easier and more efficient we will put your computer into safe mode to run quicker. Safe mode is a basic start up of windows without all the extra bells and whistles that slow down your computer. Also if there is any viruses or programs running on your computer they will very likely not be running in safe mode.

To get into safe mode simply restart your computer then right as it is starting up press F8 on your keyboard, A menu will come up listing some options for you, you need to select Safe mode with networking so that you can still have access to the internet.

It is important to press F8 at a precise time as windows is starting up, some computers will prompt you on the bottom of the screen as its loading but its ok if you just keep pressing it until the menu loads, you can definitely press it more than once.

3a. Windows Updates

Windows frequently releases security updates for problems they find with their operating system. It is usually set up to do it automatically but most people ignore it for whatever reason. Even if this is not the case go to www.windowsupdate.microsoft.com and run through their automatic updates program. Its really easy just basically keep clicking yes and next until it is complete. Once the updates are finished it will prompt you to restart your computer, do so before you continue onto the next step.

3b. Restart Again

The computer will likely restart you into normal windows mode, we will continue to work on your computer through safe mode as it will run the next steps quicker, and we can pretty much guarantee that the viruses won’t be running aswell. So restart your computer again and enter into safe mode again.

4. Anti-virus

Ok the easy step to do now is to run a virus scan. Even if you don’t have an anti-virus program on your computer you can still scan your computer for free. The site I recommend is antivirus.com put on by a company called trendmicro, this company mainly profits from its corporate clients but offers a free online scan to public users. Simply go to antivurs.com and look for their free online services for home and office use. Then follow the instructions to run the housecall program on all your local hard drives. This program will provide a current scan of your computer removing all known viruses. Its updates everyday with new definitions so you always know you have an up to date program.

There are a couple other virus programs I should mention. Some of the commercial versions of virus software (Norton and Mcafee) are usually expensive, and require a subscription. In addition to the cost they all use alot of your computers resources to run. So if you are trying to remove virus to speed up a computer by installing Norton you likely won’t notice a difference in speed as it is probably making just as slow.

The solution is to get AVG free edition, Which is a free virus program for all to use, They do also have a subscription version that has a few more features but even the full version of AVG uses way less resources on your computer then norton or Mcafee.So after you’ve finished fixing your computer if you do want to install an antivirus program you may choose to.

4b. Restart in normal mode

At this point you will need to restart you computer and let it boot normally to get out of safe mode

5. MSCONFIG

This program isn’t very well known to most computer users but it is crucial to keeping your computer clean and organized. MSCONFIG is a windows program on all windows machines that controls all start up settings. To access it go to your start menu and click on the run command then type MSCONFIG and press enter.
This program will open in a new window and there will usually be 4 tabs at the top of the window. The main one that you can edit with little difficulty or computer knowledge is the start up tab, click on it and you will see a list of all programs that start when your computer starts up. In reality there is really only 2 or 3 programs that are absolutely necessary These are your systray and anything to do with windows explorer. At this point what you can do is go through the list and uncheck any programs that look suspicious or that you know are malicious or unwanted. When you apply the settings it will ask you to reboot. Once the reboot is complete if all is well you can uncheck more of the programs from the list and see if you computer will still run as you need it. Usually I uncheck almost all of them then add the ones I absolutely need back in after. You can also work in reverse and gradually remove a few at a time and make sure your computer is still ok after each reset. You will need to performe this step a number of times until you have the computer running as quickly as possible with the programs you need.

Usually some of the types of programs that are ok to have on your start up include your software for your burner, msn, your antivirus software, printer software,windows themes.

Tip: If your not sure what a particular program does then you can google all the information list in the startup list on that program and you can usually get an answer.

6. Registry

Similarly to MSCONFIG and the start up list. Your computer registry stores a list of all programs that have ever been installed on your machine. So if you’ve had your computer a while and added and removed alot of programs there can be alot of entries in your registry. A handy program also available on the antivirus.com site is the Hijack This program. This program allows you to clean up and edit your registry.

Caution!!!!!
Be very careful with this step, only remove entries you are sure that are old and unused. This can mess up your computer if done incorrectly, that is why the hijack this program is a good tool to use. Risk of failure can be reduced by setting another restore point before you performe this task.

The windows program that is used to allow you to perform the same task is called REGEDIT. I would only suggest this program for advanced users, and I only use it when I know specifically what program I want to remove from the registry as I can search for it with the find and replace tool.

Hope these tips provide you with a little more confidence and can save you a few service call to the tech support companies.

Geoffrey Vaughan – High School Teacher and Web Developer. Owner and operator of http://www.MrVaughan.com – Resources for for High School students and teachers in the area’s of Computers and Technology.

 
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