NEW Sony Various VGN-NR VGN NR Series Keyboard US Layout Black
This is a Genuine Original Brand New keyboard FOR SONY VGN-NR VGN NR Series
Compatible models/part numbers:81-31205001-04,9J.N0A82.101, NSK-S6101
Compatible with the following Models: Various VGN-NR160ES, Various VGN- NR220ES, Various VGN- NR285ES, Various VGN-NR Series, Various VGN-NR110E, Various VGN-NR110ES, Various VGN-NR110ET, Various VGN-NR120ES, Various VGN-NR123ES, Various VGN-NR160E, Various VGN-NR240ES, Various VGN-NR240ET, Various VGN-NR260ES, Various VGN-NR260ET, Various VGN-NR280ES, Various VGN-NR280ET.
Following about Keyboard switch matrix.The keyboard switch matrix has a switch at some or all intersections, much like a multiplexed display. Almost all keyboards have only the switch at each intersection, which causes "ghost keys" and "key jamming" when multiple keys are pressed ,Without generating erronous ghost keys. Often more expensive keyboards have a diode between each intersection, allowing the keyboard microcontroller to accurately sense any number of simultaneous keys being pressed. Keyboard switch matrix is often drawn with horizontal wires and vertical wires in a grid which is called a matrix circuit.
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