TROUBLESHOOTING SOLID STATE TRAFFIC CONTROL EQUIPMENT

WITH NEW TECHNOLOGY IN TRAFFIC SIGNAL CONTROL COME NOT ONLY NEW REQUIREMENTS IN MAINTENANCE, TOOLS AND TEST EQUIPMENT, BUT ABOVE ALL THE SKILLS AND TRAINING DEMANDED OF THE TECHNICIAN AND TRAFFIC ENGINEER WHO MUST MAINTAIN AND REPAIR THE EQUIPMENT. UNLIKE MECHANICAL, ELECTRO-MECHANICAL OR EVEN EQUIPMENT USING VACUUM TUBES, SOLID-STATE EQUIPMENT REQUIRES NO PERIODIC PREVENTIVE MAINTENANCE. FAILURES ARE GENERALLY CAUSED BY A PHYSICAL BREAK OF A MECHANICAL CONDUCTOR INSIDE THE SOLID-STATE PACKAGE OR, BY SOME FORM OF CONTAMINATION TO THE SEMI-CONDUCTOR CAUSED BY A FOREIGN MATERIAL THAT HAS ENTERED THE PACKAGE. OPERATION BEYOND THE SAFE OPERATING CONDITIONS SPECIFIED FOR THE DEVICE WILL ALSO RESULT IN FAILURE. THE MOST EFFICIENT WAY OF TROUBLE- SHOOTING SOLID-STATE EQUIPMENT IS BY METHODICALLY ELIMINATING THE SECTIONS OF THE EQUIPMENT THAT ARE FUNCTIONING PROPERLY AND THEN ZEROING IN ON THE FAULTY CIRCUIT. /AUTHOR/

  • Authors:
    • Baltayan, A M
  • Publication Date: 1972-5

Media Info

  • Pagination: p. 12-3
  • Serial:
    • IMSA Signal Magazine
    • Volume: 7
    • Issue Number: 3
    • Publisher: International Municipal Signal Association

Subject/Index Terms

Filing Info

  • Accession Number: 00200768
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 7 1972 12:00AM