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The keyboard is a computer input device, because it is left exposed, and a larger gap between the keyboard keys, easy to enter the small debris, it is easy to be dirty, leading key failure, so it should be cleaned regularly. If you want to know how to thoroughly clean the keyboard, then come with me.

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1. Open the back cover

First, unplug the keyboard connector from the host, turned over and you can see the back of the screw. All the screws on the back of all of the screw, the cover can be brought down.

2. Remove the circuit board and circuit film

Remove the back cover of the keyboard to see the soft circuit after the film. Circuit structure of the film is 3 layers, layers of debris into the film, if between, it will cause key failure, so this 3-layer circuit film is the object of our cleaning. 3-layer circuit in the film there is no fixed screws, can be directly brought down, they are the film fixed on the hole to the outside of the screw through the hole on the film circuit fixed on the front panel. Keyboard circuit board is not large, no screws, or directly off the. Circuit board components are not too many, only a few circuit cable. The other side of the board has three LEDs, which is the upper right corner of your keyboard "Num look", "Caps Lock" and "Seroll Lock" light.

Dell TD459 keyboard HP 407857-001 keyboard

Compaq V4000 keyboard HP 441541-001 keyboard

3. Remove all the keys

The circuit board and circuit film to win all of the buttons after the demolition. Each button on the rubber pad has a separate, first to win all of them. All scored in the rubber pad can be dismantled after the key was. Plastic snap button is used to fix, so long as the pulling force can be removed.

4. Comprehensive clean-up

Now all the parts have been removed are removed, and on the other clean. On the keyboard panel can be those small brush debris removal, and then cloth. 3-layer film can be such a circuit to clean, can use water to clean the keys, you can also use special cleaning agents to scrub the surface. Normal 0 7.8 磅 0 2 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:普通表格; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}

Dell inspiron 9200 Keyboard Dell M1330 Keyboard

5. Install back

Finished cleaning up after is to install. One thing is we need attention, is to see all of the rubber pad is not all neatly in their own position, to avoid dislocation occurs when installing other components.