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Mountain Plains Learning Experience Guide: Radio and T.V. Repair. Course

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Mountain Plains Learning Experience Guide: Radio and T.V. Repair. Course DOCUMENT RESUME 3D 197 190 CE 027 820 M'HOP Arneson, P.: And Others Guide: Radio and L'ITLE Mountain Plains Learning Experience T.V. Repair. Course:Television Repair. rNSTTTUTTON Mountain-Plains Education andEconomic Development Program, Inc., Glasgow AFB, Mont- 3PONS AGENCY Office of Vocational and AdultEducation (ED), Washington, D.C. EUEAU NO 49BMH90003 PUB DATE Mar 77 7ONTPACT 300-79-0153 NOTE B13p.: Not available in paper copydue to light and broken print. For a related document, seeCE 027 766 and CE 027 917-319. FOPS PPTCE MF05 Plus Postage. PC NotAvailable from EDRS. DESCRIPTORS Adult Education: Audio Equipment:Disadvantaged; *Electronic Equipment: Family Programs: 1-Individualized Instruction:Instructional Materials: Learning Activities: LearningModules; Postsecondary Education: *Television:*Television Radio Repairers; video Equipment: *VocationalEducation IDENTIFIES Mountain Plains Program ABSTPACT One of four individualized coursesincluded in a radio and television repair,curriculum, this course focuses on trouble-shooting procedures for bothblack and white and color television equipment. The courseis comprised of ten units: (1) Introduction toand Block Diagramsof Television,(2) Television Audio Section Troubles,(31 Television Video SectionTroubles, (4) (61 Television AGC Troubles, (51 Television Sweep Section Troubles, Television High Voltage and PowerSupply Troubles,(7) Introduction to Colo,- Television,(B) Television Color SectionTroubles, (9) Television Troubleshooting Summary,and (101 Antennas. Each unit begins with a Unit LearningExperience Guide that givesdirections of Learning for unit completion. Theremainder of each unit consists Activity Packages (LAP) thatprovide specific information for completion of a learningactivity. Each LAP is comprised ofthe following parts: objective,evaluation procedure. resources, Procedure, supplemental sheets,study guide, and a LAP testwith answers. The courseis preceded by a pretestwhich is designed to direct the student to units andperformance activities. (LRA) *********************************************************************** Peproductions supplied by EDPS arethe best that can be made from the originaldocument. *****t************************1c**************************************** MOUNTAIN PLAINS LEARNING EXPERIENCE GUIDE: Radio and T.V. Repair. Course: Television Repair. U S DEPARTMENT OF HEALTH, EDUCATION 8 WELFARF NATIONAL INSTITUTE OF EDUCATION THIS DOCUMENT HAS BEEN REPRO- DUC ED EXACTLY A; RECEIVED FROM THE PERSON OR ORG>NIZATION ORIGIN- ATING IT POINTS OF VIEW OR OPINIONS STATED DO NOT NECESSARILY REPRE- SENT 0111CiA, NATIONAL INSTITUTE OF EDUCATION POSITION OR POLICY Oats Published: 3/2/77 Mountain-Plains Education & Economic Development Program, Inc. 11@civridougNap@redGioac® 1@edd® Glasgow APB, Montana 592 COURSE: TELEVISION REPAIR DESCRIPTION: Course troubleshootingprocedures are presented. In the Television Repair sections, are Various problems and symptoms,for each of the television set The principles for Beat with for both black andwhite and color equipment. television equipment are component and set sectionsoperation found only in troubleshooting pro- included within this course. Practice in application of also included. cedures and installationof television antennas are RATIONALE: a systematic meansto locate difficultiesin An efficient serviceman uses about Part of becomingefficient is developing knowledge television sets. practicing characteristics. The understanding and equipment principles and becoming a skilled service- of effective procedures arealso important steps to man. OBJECTIVE: service; diagnose Given service manual, tools,equipment, students will and replace parts difficulties; make necessaryadjustments; remove, repair, systems. for television receiversand MATV distribution Successful achievement willbe indicated by: according to the manufacturer'sstandards; 1. Properly functioning set procedures as stated on aperformance 2. Adherence to predetermined cL'eckliFt; and choice objective tests. 3. 80% accuracy on multiple PREREQUISITES: Occupational preparationprerequisites are: Circuits Electrical Curriculum AreaCourses: (a) DC Circuits, (b) AC (c) Basic lio 11 Communication Skills - Level H Foundation EducationPrerequisites: Principal Author(s): 77.04.00.00.A2-1 Page 2 RESOURSES: 1. Printed Materials Howard a. Television Symptom Diagnosis: An Entry Into T.V. Servicing, W. Sams and Company, Inc.,1971. Response Manual, Howard W. Sams b. Television Symptom Diagnosis Student and Company, Inc., 1971. W. Sams Cc., Inc., 1975. c. Photofact Television Course, Howard G. Middleton, Howard W. Sams Co.,1973. d. Transitor TV Training Course; Robert e. Color TV Training Manual, Howard W.Sams Co., Inc., 1974. Tandy Corp. 1975. f. Introduction to Antennas, Louis M.Dezettel. 2, Audio Visuals thirty-three five-minute film loops, a. Television Symptom Diagnosis, Hickok Teaching Systems, Inc. 3. Equipment Trainee., Hickok Teaching Systems,Inc. a. Television Symptom Diagnosis b. Television Analyst, BO( Model1077. Television Analyst, B &1( Division of c. Instruction Manual for 1077 Dynascan Corporation, 1968. GENERAL INSTRUCTIONS: explain the As a student in this course youwill be assigned activities that diagnostic procedures. Generally, you will independently principles, concepts and Film ova are read a text manual for anexplanation of procedures and concepts. further explain diagnostic viewed at a media station inthe electrical laboratory to You use a student steps. Practice is performed on a trainerand television set. symptoms, response manual to recordreplies to questions about the concepts, carefully follow diagnostic procedures and malfunctions. You are expected to very arise, you outlined safety practices andprocedures. If questions or problems directed in the LAPs for a pre- are to contact theinstructor. You will proceed as will begin a unit evaluation process scribed unjt. When you finish the unit, you before taking -ae next unit. UNIT TITLES: of Television . 01 Introduction to/and Block Diagrams .02 Television Audio Section Troubles . 03 Television Video SectionTroubles. .04 Televisio GC T, qeet 1,n 4 . -1911 .oltage andPower Supply Troubles .07 Introduction to Color Television .08 Television Color Section Troubles .09 Television Troubleshooting Summary .10 Antennas 77.04.00.00.A2 -1 Page 3 FOLLOW-THROUGH: prescribed into a unit in this course. After reading this You have already been unit. You are course guide, you areto read the guidefor the first prescribed occupational preparation, expected to use the knowledgeacquired in the prerequisite foundation education, and supportcourses. 77.04.00.00.A2-2 Student: File Code: Date: Date Published: 4/6/77 COURSE TEST: TELEViSION REPAIR 77.04.01.01 1. If a TV is operating and no picture is present butthere is scanning, the white picture is called: a. raster b. audio c. liner O. video 2. How many fields are reproduced per second by a setwhen scanning a picture? a. 2 b. 262 11 c. 1 d. 525 3. What is the signal characteristic of theaudio in a TV set? a. FM Stereo b. FM c. AM d. Shortwave 77.04.01.02 4. What channels does the UHF band cover n a TV? a. 2-13 b. 13-)4 c. 14-84 d. 1-2 5. The basic purpose of the intermediatefrequency amplifier in a TV set is to: a. Amplify sync signals b. Detect video c. Amp7 the r)et 6 Page 2 77.04.00.00.A2-2 77.04.01.02 continued 6 Which circuit does the volume control sit? a. speaker b. audio detector c. sound I.F. d. audio amp. 77.04.01.03 7. What insures that the horizontal scan rateis correct? a. I.F. amp. b. sync pulse c. A.A.C. d. A.F.C. 8. The video amp handles four s.'jnals. They are the sync, agc, video, and: a. A.M. signal b. R.F. signal c. sound d. A.F.C. to the AFC, yoke and circuit. 9. The horizontal output goes a. hi-voltage supply b. tuner c. video d. color supply provides the powerto operate the: 10. The high-voltage power a. yoke b. picture tube c. tuner d. sound amplifier 88.04.01.04 11. In which TV sectionis the contrast control? a. hi-voltage section b. video detector c. video I.P. d. video amp re: j 42, c 1. J.. A.. a. not on solid stare sets b. no, on all sets c. only on color sets d. not on black and whitesets Page 3 77.04.00.00.A2-2 77.04.01.04 13. If you had no audio in a TV receiver,but tha tuner, I.F. and video circuits checked all right, what sectionwould you troubleshoot? a. tuner and antenna b. sync c. audio d. power supply help them trace the flow of 14. Television repairmen use black diagrams to through a receiver. a. voltage b. signals c. current d. power 77.04.02.01 section, what is your symptoms if C 27 15. Referring to L 12 of the sound if shorted? (See diagram 3) a. transformer would burn up b. no audio, but have a lowhum c. no sound at all d. good audio 16. What kind of circuit does a poweramplifier have in an audio circuit of a TV when it isusing 2 transistors to operate the speaker? a. speaker b. push-pull c. pull-pull d. push-push 17. In the video section, what would happenif A9 of the transformer L8 opened up? (See diagram 2) a. lose video b. poor sound c. lose audio d. poor video 77.04.02.02 115 hozizontally 18. The rast' vidc ? -.ct t N. at rc . sh a. vertical sync b. horizontal A.F.C. c. horizontal output d. sync section 8 Page 4 77.04.0U.00.A2-2 77.04.02.02 continued 19. Black and white TV symptoms can be divided into sound symptoms, video symptoms an6 a. raster symptoms b. adjustment trouble c. antenna trouble d. tune 2n. Th L! audio in a TV set is weak in volume,what part of the audio section uhwild you troubleshoot? 0. detector b. power amplifier c. video output 21. The raster and audio are normal,but all you have on the screen is snow. What section world you troubleshoot? a. low-voltage power supply b. tuner c. video section d. sync section didn't completely fill out the 22. If you had normal audio but your raster screen, what section would youtroubleshoot? a. video section b. tuner c. low-voltage power supply d.
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