From reading the page linked by Alpha, and the translated Fw 190-A8 manual here:
http://www.lexpev.nl/downloads/fw190a8.pdf
My conclusions are these:
- If the uplocks are shot, the landing gear will gently drop down (the sealed air piston will force the gear down, but the high geared motor will make this a slow process), would probably need some shaking to completely lock down.
- The same will happen when the pilots tries to lower the gear if the electric motor is damaged.
- A damaged reduction gear will most probably made impossible to lowering that landing gear leg.
- A completely destroyed reduction gear will made the landing gear drop like a stone (when either the pilot tries to lower the gear or the uplocks are damaged), but it will never lock on the low position, and will collapse on touch down.