replace damaged USB cord on Kensington Expert Mouse
the USB cord on my Kensington Expert Mouse is damaged. I would like to know how to replace it.
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Hi,
As there doesn't seem to be any replacement parts available for the mouse you can fix the cable by splicing a new USB cable onto the existing one.
Looking at a teardown video for the mouse, the USB cable is connected to a plug inside the mouse.
If you get an another standard USB cable e.g. one you already have and don't need for other things i.e. micro USB to USB or USB to USB etc cable and cut one end off leaving the other end with a USB 2.0 male connector on and then strip the insulation off the cut end to expose the 4 wires for about 50mm, then cut the existing cable about 50mm back from the cable plug inside the mouse you can joint and sleeve the new cable wire for wire between the new cable and the wires from the mouse cable plug.
It's a bit hard to see in the video but usually the wires are red, black, white and green and the standard connection in a USB plug is shown in the image below connect. Where they connect in the mouse would depend on what the manufacturer has decided but by using the existing cable plug they should go to the correct place. The red and black would be standard (Vcc and Gnd ) the other two wires are the data wires so hopefully they match colours. If the mouse powers up but doesn't work then reverse the two data wires.
Hopefully this is of some help
(click to enlarge)
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On two trackballs I found the ground wire was intermittent and eventually broke completely. When it was intermittent it stopped the pointer from moving, disabling the trackball. Finally the trackball was unusable.
Right after the exit of the wire from the body of the trackball was a bend in the wire. I cut into that carefully, cutting the PVC black wire, exposing the 4 wires and the broken ground wire, which also acts as a shield. I sliced the black plastic open. about 1.5 inches in length, and pulled the remaining ground wires from each side. I then twisted each end of the grounds wires, bent the USB wire so they could be fastened to each other, and soldered the broken, pieces.
Then, I cut the soldered ground wire to about half an inch. I covered the entire bent section with electrical tape tightly wound over the bend. I tucked that under the circuit board inside the mouse, and brought the remaining repaired USB wire out the end as it was before.
It takes a bit of finesse to put the wire under the board and run the rest of the wire out to the grommet to the end of the trackball front. I then put the two pieces, top and bottom together, and when it clicked into place, put the screws back in to secure the top to the bottom. Both trackballs were fixed and ready to run.
Note, when opened the trackball had lots of finger dirt accumulated inside. I took a stiff toothbrush and removed as much as I could.
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