just pull the data wheel off carefully. i dunno, how to find out if the data entry encoder is broken, from the computer right here. in the most cases, you can feel it when the encoder is way too wobbly. but this is not a 100% guarantee that the issue lies there. i already replaced all encoders of my MD UW a while ago, because the encoders became wobbly eventually and the Data Wheel had some dropouts, but it wasn’t such a mess that your Data Wheel shows in that video. this could be another problem as well. just start by inspecting the mainboard for lose cable connections or bad/cold solder points. anyways…did you already found my MD Encoder Replacing Video Tutorial here in the forums? maybe this could be helpful to you. or just search for it on youtube. if you are 100% sure the encoders are done and you can’t/don’t want to do it yourself, order a few- or a full set of encoders from Elektron and i could do it for you for 20 Bucks (in euros). i’m located in germany. by the way, the Data Entry Encoder was the most difficult one to remove, because the pins are also connected to a metal plate threr under the green platic stuff, which made the removal quite hard. so be careful, not that you- or someone else damages the board and tracks. the other 9 Paramter Encoders were quite easy to remove for me. just a bit time consuming^^