Liftmaster Security Plus 3585s Manual
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LiftMaster 41AC075-2S Replacement Logic Board
![LiftMaster 41AC075-2S Replacement Logic Board](https://i2.wp.com/www.garagedoorsupplyco.com/assets/images/LM-LOGIC-BOARD-MODEL-3585S-ONLY-41AC075-2S-1.gif)