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Synaptics does have some very informative information on their website by means of a PDF file containing more information than one could ever want to know about thouchpads but no pin outs at least not for the model I held in my eager little hands. I figured I would follow the crowd and play with the Synaptics one and condemned the Apls pads back to their confining cardboard container. I googled and googled but could not find any good pin out info for any of the touchpads I had, most people are recommending trying this with the Synaptics flavor of touchpad, I had one Synaptics and the rest were Apls. Remembering that some years ago I had read most touchpads use the PS2 protocol I rescued them from their cardboard prison and decided to see if I could make one work with my computer. I was having kind of a slow day here at the office so I thought I would start sorting through some old boxes of junk we had lying around and stumbled upon a few laptop touchpads cowering at the bottom of a box labeled ‘Misc Laptop Parts’ (fancy that).
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