Yes, that seems the right one.
I can't bring myself to open mine up (it has exactly the same problem) for fear of making a mess of it
... and I can't afford to have it repaired. So I have to content myself with looking at it (it's very pretty).
It would be helpful if you were to report back with how it went and offer any comments about the
Instructables procedure - any oversights or errors in the instructions, or any extra things you discovered that were helfpul.
Good luck!