Maricopa Community Colleges  ELT273   19932-20086 
Official Course Description: MCCCD Approval: 07/22/08
ELT273 19932-20086 L+L 4 Credit(s) 6 Period(s)
Microcomputer Servicing
Major functional components of a microcomputer system including Central Processing Unit (CPU) and support circuitry, memory and memory support circuitry, input/output and external bus controllers, external memory device, terminals, and CRTs(cathode ray tube), printers, plotters; DC(direct current) and AC(alternating current) characteristics, timing diagrams and signal coordination; troubleshooting and repair techniques.
Prerequisites: ELT243.
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MCCCD Official Course Competencies:
 
ELT273   19932-20086 Microcomputer Servicing
1. Describe the use of software and hardware tools available for development and troubleshooting of microcomputer systems. (II)
2. Demonstrate the use and operation of logic probes, hand held testers, software and firmware and diagnostic tools. (II)
3. Explain the function of the logic analyzer and in-circuit emulator in describing the operation of a microcomputer system. (II)
4. Describe the process of analyzing a problem and identifying a sequence of steps for solution. (III)
5. Explain the procedure for optimizing the solution process and stepping through a sequence of events to solve the problem. (III)
6. Describe typical problem scenarios that occur on microcomputer systems. (IV)
7. Demonstrate the process of solving a microcomputer related problem using diagnostic equipment. (IV)
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MCCCD Official Course Outline:
 
ELT273   19932-20086 Microcomputer Servicing
    I. Introduction
        A. Introduction to course
          1. Course description
          2. Course competencies
          3. Grading and attendance policies
        B. Review of microcomputer system architecture
        C. Review of internal computer organization
        D. Review of instruction set of the Intel 8086 microprocessor
        E. Review of the memory interface, the I/O interface and the interrupt interface of the Intel 8086 microprocessor
      II. Test equipment
          A. Test equipment overview
          B. Logic probes and hand held tools
          C. Diagnostic software and firmware tools
          D. Logic analyzers
          E. In-circuit emulators
          F. Advanced diagnostic equipment
        III. Elements of troubleshooting
            A. Identifying the problem
            B. Sorting through the facts
            C. Identifying a starting point
            D. Solving the problem one step at a time
            E. Reducing the number of possible sub-problems
            F. Solving easiest problems first
            G. Not creating other problems
            H. Being sure the solution solves the problem
          IV. Integrated troubleshooting
              A. Problem situations with microcomputers
              B. Problems with microcomputer peripherals
              C. Helpful techniques in troubleshooting microcomputers
              D. Applying advanced diagnostic equipment in problem solution
              E. Remote diagnostics
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