Electronics Repair Manual • Electronics Repair Basics • Tools and Test Equipment • Troubleshooting and Maintenance • Specific Repair Instructions • Schematic Diagrams • Component/Manufacturer Indices Editor Gene B. Williams © WEKA Publishing, Inc., 1993 New York • Munich • Zurich • Paris Milan •Amsterdam • Vienna The publisher shallnot beliableto thepurchaseror any otherperson orentity withrespectto anyliability, loss or damage causedorallegedto becauseddirectly orindirectlyby this book. Whenattributedasa source,thenamedmanufacturerreservesallrights totheinformationpresented. WEKAPublishingreservestherightstotheformatinwhichsuchinformationispresentedin the ElectronicsRepairManual. Forthesumoftheothermaterialinthebook,allrightsreservedby VVEKA Publishing. Nopartofthispublicationmaybereproducedinanyformorbyany means-graphic, electronicormechanical,includingphotocopying,recording,tapingorinformationstorageandretrieval systems-withoutthepermissionofthepublisher. WEKA Publishing 97 Indian Field Rd Greenwich, CT 06830 (203) 622-4177 FAX(203) 622-4187 Amemberofthe internationalWEKA Publishing Group NewYork· Munich· Zurich· Paris· Milan· Amsterdam· Vienna ©WEKAPublishing, Inc., 1993 ISBN:0-929321-06-5 WEKAPublishing,Inc 97IndianFieldRoad Greenwich,CT06830 Phone: 203-622-4177 Toll-free:1-800-222-WEKA ~ Fax: 203-622-4187 USA • Gennany • Switzerland • France • Italy • Netherlands •Austria • Belgium L..- ...I DearSubscriber, As ProductManagerfor the Electronics Repair Manual, I'd like to welcome you per sonally to what I thinkis the most useful reference source for electronics repair. Your manual occupies a unique place in today's array ofelectronics books andmaga zines; unique simply because itcovers and explores all ofthe areas which are ofinterest to professionals and hobbyists. Fromrepairing audio and video equipment, to computers, to household appliances and automobile electronics, this manual is packed with valuable information,references, and step-by-stepinstructions-things you wantandneed tokll1ow. Repair All Kinds ofElectronics Yourself Radio receivers, television sets, VCRs, camcorders, personal computers and peripherals, CDplayers- whateveryourrepairjob, you'll havecomprehensiveinformationwithin easy reach. For each devicecovered you'll find: • fundamentals ofoperation • necessary tools and testequipment • preventivemaintenance • troubleshooting and repairinstructions Use UniversalRepairInstructionsfor GeneralTroubleshooting Universal repairinstructions are provided thatapply to entire groups ofequipment. You'll find general approaches on how to locate the faulty parts ofyour device and how to repair it. You can be working on one ofthe hundreds ofVCR models in use today and have valid repairinstructions at yourfingertips. Profitfrom Model-SpecificRepairInstructions Specific repairinstructions show you step-by-step troubleshooting and repair for partilcu larmodels. This in-depth information is illustrated with drawings and pictures, accompa nied by checklists and diagrams. As a beginnerorprofessional, this section offers you a tr~asure oftips and hints that will increase your success with repairing all kinds ofelec tronics equipment. NowYou Have a Complete ReferenceSourceatYourFingertips In addition to universal repairinstructions and model-specific repairinstructions, your manual provides you with schematics, valuable data tables on electronic components, an in-depth section on tools and test equipment, and lists ofsuppliers and manufacturers. YourManualContinuesto GrowinSizeand Value Yourquarterly updates to the Electronics Repair Manual provide you with an ever expanding source ofrepairinformation. You'll keep upwith technological developments and increase yourproductivity through additional hands-on projects. ShapeYourSupplements Use the enclosed questionnaire to help us selectthe devices and topics for future updates. Whatdevices are you interested in? Do you like more universal ormore model-specific repair instructions? What kind ofcomponentindices would be ofhelp to you? In a sense, you become a member ofour editorial team. You help us to make the manual your manual-to makeitwhatyou wantitto be. I hope you'll enjoy youredition ofthe Electronics Repair Manual! Any comments and suggestions you may have regarding this bookand the updates are welcomed. Welook forward to hearing from you. Sinc:erely, ~!J.U ChristopherB. Smith ProductManagerforElectronics Publications P.S.: Ifyou like to save time and money, please feel free to give our Customer Service Department a call in order to take advantage ofour special subscription offer. You'll be saving shipping and handling for a whole year and you'll receive an additional binder for free! So why don'tcall today! Ourtoll-free number is 1·800·622·WEKA. Electronics Repair Manual· Questionnaire 1 HowInterestingarethedifferentsectionsofthemanualtoyou? (pleaseindicate:1=highestinterest;5=lowestinterest) Name: Address: 1 2 3 4 5 City: • State:___ZIP:__ ElectronicsRepairBasics 0 0 0 0 0 ToolsandTestEquipment 0 0 0 0 0 PhoneNumber:( ) Video 0 0 0 0 0 Television 0 0 0 0 0 Audio 0 0 0 0 0 2 HowImportantIsourtoll-freehotllne AutomobileElectronics 0 0 0 0 0 servicetoyou? ComputerEqUipment 0 0 0 0 0 (1 =veryimportant;5=notimponant) HomeAppliances 0 0 0 0 0 ReferenceMaterials: -Addresses 0 0 0 0 0 1 2 3 4 5 -Indices 0 0 0 0 0 -Schematics 0 0 0 0 0 0 0 0 0 0 3 Which devices wouldyouliketoseecoveredInfutureupdates?I Pleaseindicatewhetheryouareinterestedin:a)maintenance;b)generaltrOUbleshootingtechniquesandrepairinlitructions;c)troubleshooting certainproblems(pleaseindicatetheproblem)d)casestudiestovariousmodels[(pleaseindicatethemanufacturerandmodel(s)];e)schematic diagrams[(pleaseindicatemanufacturerandmodel(s)].Pleasenotethemostimportantmanufacturersforeacharea. a) b) c) d) e) Maintenance Generaltrouble- Troubleshooting Case Schematic shooting/repair certainproblems studies diagrams Video OVCRs:VHS 0 0 0 0 0 SVHS 0 0 0 0 0 oCamcorders: VHS 0 0 0 0 0 SVHS 0 0 0 0 0 VHS-C 0 0 0 0 0 SVHS-C 0 0 0 0 0 8mm 0 0 0 0 0 Hi-8 0 0 0 0 0 Beta 0 0 0 0 0 oLaserDiscPlayer 0 0 0 0 0 oCameras 0 0 0 0 0 Other: 0 0 0 0 0 Mostimportantmanufacturer(s) Audio oMicrophone 0 0 0 0 0 oTapeRecorder 0 0 0 0 0 OWalkman 0 0 0 0 0 oTumtable 0 0 0 0 0 oAmplifier 0 0 0 0 0 OCDPlayer 0 0 0 0 0 oLoudspeaker 0 0 0 0 0 oCrossoverSystems 0 0 0 0 0 Other: 0 0 0 0 0 Mostimortantmanufacturer(s) AutomobileElectronics oAirConditioning/ temperaturecontrol 0 0 0 0 0 oIgnition/starter 0 0 0 0 0 oElectricsunroof oWindows/doorlock 0 0 0 0 0 oFuelcontrol 0 0 0 0 0 oSpeedcontrol 0 0 0 0 0 oTravelcomputer 0 0 0 0 0 (Questionnairecontinuedonreverse) BW3 a) b) c) d) e) Maintenance Generaltrouble- Troubleshooting Case Schematic shooting/repair certainproblems studies diagrams Automobile Electronlcs(,cont'd) oAlternator 0 0 0 0 0 Other: 0 0 0 0 0 Mostimportantmanufacturer(s) ComputerEquipment oPersonalComputer 0 0 0 0 0 oMini-Microco,"~puter 0 0 0 0 0 oComputerBc)ards 0 0 0 0 0 oPorts 0 0 0 0 0 oHardDrive 0 0 0 0 0 oCD-ROM 0 0 0 0 0 \ oLaserPrinter 0 0 0 0 0 oDotMatrixPrinter 0 0 0 0 0 oScanner 0 0 0 0 0 oMonitor 0 0 0 0 0 oMouse 0 0 0 0 0 Other: 0 0 0 0 0 Mostimportantmanufacturer(s) HomeApplliances oRefrigerator/Freezer 0 0 0 0 0 oDishWasher 0 0 0 0 0 oWasher/Dryl~r 0 0 0 0 0 oSewingMachine 0 0 0 0 0 oLawn Mowell' 0 0 0 0 0 oDehumidifier 0 0 0 0 0 oAirConditioner 0 0 0 0 0 oGarage-doorOpener 0 0 0 0 0 Other: 0 0 0 0 0 Mostimportantmanufacturer(s) Miscellaneous(pleasenotebelow) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 Whichspecializedtestequipmentwould 5 PleasementionanyothertopicsthatInterestyou: youlike toseecovered? 6 Whichkindofindices wouldyouliketoreceive? [Pleasementionforeachindex,whetheritshouldbeapartnumberindex(p),afunctionalindex(f),oralternatesourceindex(a)] 0 Diodes o ThyristorsandTriacs o Transistors o LinearICssuchas 0 Microcontrcillers o Microprocessors o Memories o OtherDigitalICs 7 Iuseth,e "ElectronicsRepairManual"for 8 Asarepairtechnician, doyouconsideryourself: o Hobbyonly o Hobbyandbusiness o Businessonly o Beginner o Advanced o Professional 9 Doyouuseacomputer? 10 .Which otherareaswouldyoulike toreceive more 0 No o Yes detailedInformationabout? 0 IBMComp~ltible o Macintosh o Other o IntegratedCircuits o DataAcquisition 0 ElectronicsProjects 0 DiskDrive: 051/.1" o 3Y2" o ElectronicsBasics o HomeOfficeComputing o Other 11 Whichmagazinesdoyouread? o ElectronicServicing&Technology o PopUlarCommunications o ComputerCraft 0 PopUlarElectronics o RadioElectronics o ViejoPublications o PrenticeHallElectronicsBookClub 0 McGrawHillElectronicsBookClub o Other Section 1 •Table of Contents Table of Contents Section 1 Table of Contents section 1 Table of Contents section 2 Preface 2/1 Welcome 2/2 Howto use YourManual 2/3 SafetyProcedures section 3 Electronic Repair Basics 3/2 Electronic Fundamentals 3/2- C Components 3/2-0 Ohm'sLaw 3/2 -PVC Power, Voltage, Current 3/2 -QU5 Quantities, Units, Symbols 3/3 Troubleshooting Techniques 3/4 SolderingiDesoldering Section 4 Tools and Test Equipment 4/1 Tools forRepair 4/2 Basic TestEquipment 4/3 AdvancedTest Equipment 4/3-DMM DigitalMultimeter 4/3 -Fe FrequencyCounter 4/3- LP LogicProbe 4/3-0 Oscilloscope 4/3 - 55 SignalSources section 5 Video 5/Cam Camcorder 5/Cam - A An Introduction Page1 Section 1•Table of Contents Talble of Contents I i Section 5 Video (Continued) 5/Cam -F Features 5/Cam - M Maintenance 5tCam -TE TestEquipment 5tCam -TR TroubleshootingandRepair 5tCam -VCS Various CaseStudies 5NCR Video Recorder 5NCR-A An Introduction 5NCR-M Maintenance 5NCR-TE Test Equipment 5NCR-TR Troubleshooting andRepair 5NCR-VCS Various CaseStudies Section 6 Television 61TTV Tube Television 61TTV-A An Introduction 61TTV-TE Test Equipment 61TTV-TR TroubleshootingandRepair 61TTV-VCS Various Case Studies Section 7 Audio 7tA Amplifier 7/A-A An Introduction 7/A-TR Troubleshooting andRepair 7tCD CDPlayer 7tCD-A An Introduction 7tCD - F Features 7/CD- M Maintenance 7/CD -TE TestEquipment 7tCD -TR Troubleshooting andRepair 7tR Radio 7/R-A An Introduction 7/R-F Features 7tR -TR TroubleshootingandRepair Page2