Try to set up an appointment prior to the preliminary hearing. If this is the first listing, the court may grant a continuance. Good luck.
I agree with Mr. Keller. If you still have no success by the time if the hearing, instruct your PD to request a continuance on your behalf so the two of you can talk about the case before hand. You're experiencing one of the negatives about representation by a PD. I n my county, Allegheny, defendants normally don't know what PD will represent them ahead if time.