SINGLE TOOTH Posted April 3, 2018 Share Posted April 3, 2018 I've got this trak-ball that is erratic. When moving the ball slowly, the cursor jitters around the screen. See video for proof. This is an older unit. It's got some brass rollers. I've replaced the bearings, and all of the ICs except for the one at A1. Still is jittery. Not sure why. It looks like it's had some rework done to it. One of the ICs was soldered right to the board while the others were socketed. I've unsoldered that IC and installed a socket and replaced the IC. Anyone know what's going on? https://youtu.be/D553md3WgII Quote Link to comment Share on other sites More sharing options...
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