Add me to the list of smackers. I had dropped my TRV-510 in the dirt. After cleaning it out I had no zoom and no focus. Searched on Mr. Google and found this thread. A few light smacks did nothing. Got a rubber mallet and started with light taps, then graduated to medium taps. On a scale of 1-10 I hit it at about a 3. Four taps and the zoom function returned, but focus only worked throughout part of the zoom range. A few more taps and it's fully functional. Probably a sliding mechanism gets stuck when it receives too much shock. The taps unstick it.

Reply