Keyboard Interface
Things You Should Know About HP Laptop Keyboard
Keyboard is the nearly everyone commonly used computer input devices, which consist of keys, conductive plastics, and the encoder interface circuits so on. On the keyboard typically has lots of buttons, every button is responsible for a function, 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 produced by the keyboard interface, rapidly sent to the CPU.
"Keyboard key failure" is what we often encounter problems. This incident usually occurs because the circuit board or a conductive plastic on the dirt, making between the two cannot be correctly connected. Other factors may also be, for example: the keyboard plug is damaged, circuit problems, etc. So we only want to carry out decaling their work.
Take HP Laptop Keyboard 441541-001 as an example, operation steps are:
1. Disassemble the HP Laptop Keyboard. Reminder that when you open the keyboard, be certain to button surface (that is, our operations side) down, circuit board up, if not every key on the conductive plastic may have come off, giving you repair trouble.
2. Opening circuit boards, circuit boards are normally made of soft plastic film, the top row of buttons marked with lines, with the concentration of alcohol, if possible more than 97% of cotton (75% of medical alcohol can as well be cotton, because I had used , however the best is to employ high concentrations of alcohol, cotton) and gently scrub two times in the circuit board.
3. View key failure part of the conductive plastic, if the above accumulated much dirt, the same use of alcohol scrub. Presume conductive plastic is damaged, then you cannot key on the usually used conductive plastic for the damaged part, though this initiative not allow the HP Laptop Keyboard to play out all functions, however the most at least it can extend the life of usually used keys.
4. Remove the HP Laptop Keyboard in a corner in the dirt, tools can be a brush, small brush, etc., however reminder that several 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 for instance conductive silver paint, concrete repairs please refer to the next section HP Laptop Keyboard repair examples).
6. Install a fine keyboard. It must be noted here that we have to wait and then to clean the alcohol evaporates.
About the Author
Vita Merisia originally comes from Indonesia. She has written a lot of articles on electronic product. She has additional information on Laptop Games tips, and Micro Laptop guide you may be interested in reading!
New PC Keyboard Interface for the ZX Spectrum
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