@dc42 thanks for your answer
But this image is from 0.6 schematic, my board is based on 1.0 schematic.
In 1.0 schematic R191 seems to be a 47ohm resitor.
Looking online for smd resistors, turned out to be very difficult with basic knowledge.
(there are a crazy different amount of resistors online with 47ohm)
Does R191 have some special requirements on volts, amps?
(sry I really have no idea what kind of attributes or format they have ^^)
Could have been my bad... maybe i moved the XY gantry too much and too fast, which is connected over a "pulley-coreXY" system (FcoreXY) to 0.9 Motors. I forgot to disconnect the motors from the Board and the back EMF together with switching the printer on right after moving the gantry by hand could have been too much.