Problem solved!
R15 is resistance-net of 5 10kohm resistors. Somehow I received a 3x10 in pairs resistance-net!
Took the original out of the board and now it works like it should!
R15 is resistance-net of 5 10kohm resistors. Somehow I received a 3x10 in pairs resistance-net!
Took the original out of the board and now it works like it should!