Revised 10/1999

ETR 285 - Fundamentals of Microcomputer Repair (4 CR.)

Course Description

Provides the student with an exposure to the various techniques and procedures used to troubleshoot a microcomputer. May include an overview of a particular microprocessor system, use of isolation flow charts, test points charts, prints, diagnostic routines, component testing and fault isolation labs. Lecture 3 hours. Laboratory 3 hours. Total 6 hours per week.

General Course Purpose

To provide a basic understanding of the components contained in a typical microcomputer system. To provide knowledge of troubleshooting techniques used in repairing microcomputer systems.

Course Prerequisites/Corequisites

The prerequisites or corequisites are ETR 158 - "Electronic Circuits for Computers" and IST 117 – “ Introduction to Microcomputer Software” .

Course Objectives

Upon completion of the course, the student should be able to troubleshoot an IBM PC or compatible to its least repairable module.

Major Topics to Be Included

Lecture

  • Power-on self test
  • Power supply circuit
  • Keyboard
  • Display controller
  • Disk controller
  • Printer controller
  • System board
  • CPU chip
  • RAM/ROM

Laboratory

  • Power-on self test and diagnostic disk
  • Power supply failure
  • Keyboard failure
  • Display board failure
  • Disk drive controller board failure
  • Printer adaptor board failure
  • RAM failure
  • System clock failure
  • ROM Failure