Pulled out the trusty old EX-3 last week, and the handgrip lock no longer functions...it just freely rotates.

I hate to start disassembling a housing without knowing what's in it. Anybody fix one before, or is this a "send it to sony, or just live with it" choice?

Bill,

I don't have my EX3 anymore ...but remembered seeing a very useful thread on something like this a while ago with the original EX1 (that also had an identical rotating handgrip design). So after a few seconds with a quick search I found this thread.

I think you might find useful - depends how brave you feel!

http://www.dvinfo.net/forum/sony-xdcam-ex-pro-handhelds/511421-handgrip-loose.html

Wow. That brave I am not. I'll wait until things slow down and send it in for the pros to work on...given that it still functions perfectly well. Just makes for a better wrist workout! ;}