well ,i don't think 看看 means "to try " either .看看means "to have look "
A: Do u know how to solve this problem? 你知道怎么解决这个问题吗？
B:Let me see .我看看 (to have a look )
In this case, 看看 means that u r going to have a look .but it doesn't mean u must try to figure out it .of course ,most people will try to figure out that after having a look .That is why people think 看看 means "to try" easily .As u know ,someone maybe just have a look ,not going to figure out no matter he /she know how to solve the problem
of course ,that is just my view .