Dag, I am looking for a tool to adjust my Beocenter 2 distance between Keyboards and Display. Use the special tool delivered with the gearbox. Witch tool should I use? After replacing parts in the Master unit, it may be nessasary to adjust the Keyboards. There are two adjustments: 1. Distance between Keyboards and Display. 2. Distance between Keyboards and bottom. To adjust the distance between the display and the Keyboards (a), use the screw 1 (Located on the back). Use the special tool delivered with the gearbox.