trey mork posted an answer for this Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener:
"take some toilet paper, or some very light rag and dust the RPM sensor over, under,..."
trey mork posted a question about Panasonic PT-AE900U Multimedia Projector:
"lost my hdmi input, and i notice that in the menu the "color, tint, ect no longer is..."
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