There are other switches in the D2F family that may work, you can check the pdf from Omron themselves here:īe very careful when desoldering them, its easy to damage or destroy the copper pads surrounding the pins if you heat them up too much or for too long (guess how I know that!) Use a solder sucker and wick then keep the iron on the pins themselves as you pull it out with pliers. The left, right and middle buttons are Omron D2F switches, most likely D2FC-F-7N which are available on Amazon, and from digikey and other electronics suppliers online. Note that one of these screws is beneath the sticker in the battery compartment (shown below). Then, there are five screws holding the shell together remove them. The new button is slightly stiffer than the old, but it works consistently.įirst, pop the blue trackball out. I set out to determine whether the button could be replaced I was successful, and my procedure for replacing it is outlined below. Looking online, this seems to be a common problem the device is somewhat cheaply made, and the middle button is not the usual high-performance switch, but some lower-quality part. There would be weeks where the button wouldn't respond at all, or would only respond to exceptional force. It has a combination scroll wheel/middle button however, over time this button began to get flaky. The wireless trackball I'm using is the Logitech M570. It's especially excellent for working on the train, since i don't like the trackpad and there isn't room for a normal mouse. Replace the 5 screws below and push in the ball after that.I've been using a wireless trackball for a while now, and it's turned out to be one of the best purchases I've ever made. Replace the top cover while holding the cradle to ensure it remains in place (misaligned cradle would prevent the ball from rolling smoothly). Apply contact spray on the ribbon insert after re-seating the ball cradle and insert the ribbon cable fully before locking with the plastic strip. Apply contact spray on the 4 switches as well as the 5th on the board. Align/replace the PCB and re-insert the 4 screws. Spray the on/off contact with contact cleaner while "clicking" with fingernail.į. Losen 4 screws holding the circuit board to the base and lift the circuit board off while taking care to let the on/off slider remain on the base.Į. Losen the clip on the circuit board holding the ribbon cable and remove the ball cradle with connector.ĭ. Remove the marble ball first (push from below) and press the ball cradle with left thumb while removing the top cover to avoid breaking the ribbon connector.Ĭ. Remove 5 screws from bottom (4 below the rubber pads and 1 inside battery compartment covered by the AA battery label - approx 3mm left of the AA letters)ī.
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December 2022
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