gs300joe

Hello, my servo is not working, I called my local dealership and they said there are 4 servos in my car and I need to identify which one and they are running for $195 a piece (ouch), I am not a DIY handyman by any means so I wonder if anyone can help me out on your expertise. Currently my AC is blowing air top and bottom, instead of replace the servo, is there a way that I can manually turn and set the vents that blows in the face and stay in that position for good? Thank you