Maricopa Community Colleges  ELT177   19972-20086 
Official Course Description: MCCCD Approval: 07/22/08
ELT177 19972-20086 L+L 4 Credit(s) 6 Period(s)
Servicing Television Systems
Presents the basic theory of B-W and color television receivers. Emphasis on troubleshooting solid-state receivers. Includes alignment and set-up procedures for solid-state color receivers.
Prerequisites: ELT113, or permission of Department or Division.
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MCCCD Official Course Competencies:
 
ELT177   19972-20086 Servicing Television Systems
1. Describe the principles and standards of the NTSC receiving systems. (I-III)
2. Troubleshoot B-W television receivers. (II, IV, VIII)
3. Troubleshoot color TV receivers. (II, III, V, VIII)
4. Color align a TV receiver. (III)
5. Perform gray scale set-ups and convergence of a color receiver. (III)
6. Use appropriate test equipment to troubleshoot TV receivers. (III, IV)
7. Describe digital electronics as applied to television receivers. (VI)
8. Describe frequency synthesis and remote control circuits. (VI)
9. Describe the principles of stereo sound for TV receivers. (VII)
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MCCCD Official Course Outline:
 
ELT177   19972-20086 Servicing Television Systems
    I. Television systems and principles
        A. Block diagrams
        B. NTSC standards
        C. Picture quality
      II. Scanning, synchronizing, and development of video signals
          A. Scanning rates
          B. Blanking and synchronizing pulses
          C. Negative and positive picture transmission
          D. Frequency components of video signal
        III. Principles of color television receivers
            A. Color signal components
            B. Color burst signal and subcarrier frequency
            C. Block diagram of a modern-day color television receiver
            D. Review of color NTSC standards
          IV. The monochrome receiver
              A. Various circuits associated with a B-W television receiver
              B. Various troubleshooting techniques associated with B-W TV receivers
            V. The color TV receiver
                A. Circuits that are unique to color television receivers
                B. Various methods of troubleshooting the color receiver
                C. Critical points when replacing defective components with substitutions
              VI. Digital circuits associated with color television receivers
                  A. Microprocessor controlled tuner
                  B. Real time indicator circuits
                  C. Remote control units
                VII. The FM sound system
                    A. Mono FM television sound circuits
                    B. Stereo FM sound circuits
                  VIII. Special TV circuits
                      A. Switching power supplies
                      B. Shut-down circuits
                      C. The SMV video circuit
                      D. Auto-ABL circuits
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