You can contact
Havel Camera
1102 Basse Road
San Antonio, TX 78212-1003
Tel: (210) 735-7412
Fax: (210) 734-2715
Email:
havelcamera@sbcglobal.net
According to Pentax, this is the closest authorized repair center from Houston. If I were you, I would call first and ask some questions (reppair time, estimate, time estimate for repair, etc), then take if myself to them. Its only about a three hour drive from Houston.
The official Pentax repair facility is at
PENTAX SERVICE DEPARTMENT
12000 Zuni Street
Suite 100B
Westminster, CO 80234
1-800-877-0155
Hope this helps.
Robert B