You should open File/Settings/Version Control/Subversion and uncheck 3 options: Use command line client, Use system default Subversion configuration directory and Use system default Subversion configuration directory like http://screencast.com/t/rlh9H2WVpgo
And then go to network tab. Choose SSLv3 instead of All in the field SSL protocols like http://screencast.com/t/l5yw1jqOxV
Lastly, check in or out your source via svn. It works well