Originally posted by Chippedoff Hello. I have a k200d and i don't remember if this is normal but even when i flick the side switch to manual focus mode the autofocus is still working, I can still focus manually but the motor is fighting me. Even if it's a minute amount of autofocus it is a problem for long exposure times particularly what taking photos of the night sky.
After a bad fall, I had a similar problem with my K200D. It was stuck in AF mode. I was mostly using manual lenses at the time, so it wasn't the end of the world for me. Months later, after another knock, the switch started working again. I went through a phase where it was working, then not-working. Eventually, it seemed to sort itself out and I didn't have any more problems, though I'm not really using the camera at present.
This led me to suspect that the alignment between the button on the outside of the camera and a switch on the inside is a bit iffy, but that's just speculation.
I know this doesn't help much - you aren't going to go smacking your camera, hoping to jiggle things back into alignment. You could try working the switch back and forth to see if something "frees up".
Sorry this isn't more helpful, but if the malfunction is the result of a drop/shock, it might sort itself out eventually.