Dear colleagues, I wonder if any of you might have the electrical diagrams of an old VG Isotech's ISOPREP-13. Some time ago one such unit was given to me, and would like to explore if it works now that I have some time. Together with the Unit I got the operating manual, but there are no wiring diagrams and the like. When I tested it today it was obvious that the unit is shorted, and it would be most helpful to have the electrical diagrams for diagnose and eventual repair. Thanks, Clemente -- ******************************************* Dr. Clemente Recio Area de P. y Geoquímica Dto. de Geología Univ. de Salamanca Pza. de los Caídos, S/N E-37008 SALAMANCA SPAIN Phone: (+34) 923 29 45 00, Ext. 6301 (Automatic Switchboard) E-mail: [log in to unmask] *******************************************