Summary of the content on the page No. 1
ServiceManual
WFM90DandWFM91D
HandheldWaveform,Vector,
Picture,andAudioMonitor
071-1143-01
Thisdocumentappliesto firmwareversion 2.13
and above.
Warning
Theservicing instructionsareforuseby qualified
personnelonly.To avoid personalinjury,do not
perform any servicing unlessyou arequalified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com
Summary of the content on the page No. 2
Copyright© Tektronix, Inc. All rightsreserved. Tektronix productsare covered by U.S. and foreign patents, issued and pending. Information in thispublication supercedes that in all previously published material. Specificationsand price change privilegesreserved. Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077 TEKTRONIXand TEKare registered trademarksof Tektronix, Inc.
Summary of the content on the page No. 3
WARRANTY Tektronix warrantsthat the productsthat it manufacturesand sellswill be free from defectsin materialsand workmanship for a period of one (1) year from the date of shipment. If a product provesdefective during this warranty period, Tektronix, at itsoption, either will repair the defective product without charge for partsand labor, orwill provide a replacement inexchange forthe defective product. In order to obtain service under thiswarranty, Customer must notify Tektronix of the defect b
Summary of the content on the page No. 4
Summary of the content on the page No. 5
TableofContents GeneralSafetySummary ................................... vii ServiceSafetySummary .................................... ix Preface................................................... xi About ThisManual............................................... xi RelatedManuals ................................................. xi ContactingTektronix ............................................. xii Specifications Product Description .............................................. 1--1 Characte
Summary of the content on the page No. 6
TableofContents Variable GainRange andVertical PositionRange....................... 4--7 Overscan ....................................................... 4--8 Input and DC Restorer Frequency Response ........................... 4--9 VectorPhase Stability............................................. 4--11 Chrominance Bandwidth .......................................... 4--12 Audio Gain and Frequency Response ................................ 4--13 PerformanceVerification:DigitalSection............
Summary of the content on the page No. 7
TableofContents Connector Diagram .............................................. 6--59 Options Options ........................................................ 7--1 Accessories ..................................................... 7--2 ReplaceableMechanicalParts ReplaceablePartsList...................................... 8--1 PartsOrderingInformation......................................... 8--1 Usingthe Replaceable PartsList .................................... 8--2 Diagrams Diagrams............
Summary of the content on the page No. 8
TableofContents ListofFigures Figure2--1:Installingtheviewinghood ....................... 2--2 Figure2--2:Installingthedeskstand.......................... 2--2 Figure2--3:PackingtheOption33travelcase .................. 2--3 Figure2--4:RemovingtheNiMHbatterypack ................. 2--5 Figure2--5:Insideofthebatterycompartment,showing polaritymarkings ...................................... 2--6 Figure2--6:WFM90Dkeypad ............................... 2--8 Figure2--7:WFM90DandWFM91Dsidepanels .......
Summary of the content on the page No. 9
TableofContents Figure6--15:Batterycontactinstallationalignment ............. 6--32 Figure6--16:Batterypower-wireandturnlockstudreceptacle installation ............................................ 6--33 Figure6--17:Batteryorientationmarkerposition ............... 6--36 Figure6--18:InstallingtheEMIsuppressor .................... 6--37 Figure6--19:Testingthebatterychargingcircuit................ 6--40 Figure6--20:Flowchartfornodisplay ........................ 6--45 Figure6--21:Flowchartfordistorte
Summary of the content on the page No. 10
TableofContents ListofTables Table1--1:Verticaldeflectionsystem ......................... 1--2 Table1--2:DCrestoration................................... 1--4 Table1--3:Audiomode ..................................... 1--5 Table1--4:Horizontaldeflectionsystem ...................... 1--5 Table1--5:Vectormode .................................... 1--6 Table1--6:Synchronization ................................. 1--7 Table1--7:Powersource ................................... 1--7 Table1--8:Physicalchar
Summary of the content on the page No. 11
GeneralSafetySummary Reviewthefollowingsafetyprecautionstoavoidinjuryandpreventdamageto thisproductoranyproductsconnectedtoit. Toavoidpotentialhazards, usethisproductonlyasspecified. Onlyqualified personnel should perform serviceprocedures. Whileusingthisproduct, youmayneedtoaccessotherpartsofthesystem. Read theGeneral SafetySummaryinothersystemmanualsforwarningsandcautions relatedtooperatingthesystem. ConnectandDisconnectProperly.Donotconnectordisconnectprobesortest leadswhiletheyareconnectedto
Summary of the content on the page No. 12
GeneralSafetySummary SymbolsandTerms TermsinthisManual.Thesetermsmayappearinthismanual: WARNING.Warning statements identifyconditions or practices that could result in injuryor loss of life. CAUTION.Caution statements identifyconditions or practices that could result in damageto this product or other property. TermsontheProduct.Thesetermsmayappearontheproduct: DANGER indicatesaninjuryhazardimmediatelyaccessibleasyoureadthe marking. WARNINGindicatesaninjuryhazard notimmediatelyaccessibleasyouread
Summary of the content on the page No. 13
ServiceSafetySummary Onlyqualifiedpersonnelshouldperformserviceprocedures. ReadthisService SafetySummaryandtheGeneral SafetySummarybeforeperforminganyservice procedures. DoNotServiceAlone.Donotperforminternalserviceoradjustmentsofthis productunlessanotherpersoncapableofrenderingfirstaidandresuscitationis present. DisconnectPower.Toavoidelectricshock, switchofftheinstrumentpower, then disconnectthepowercordfromthemainspower. UseCareWhenServicingWithPowerOn.Dangerousvoltagesorcurrentsmay existinth
Summary of the content on the page No. 14
ServiceSafetySummary x WFM90DandWFM91DServiceManual
Summary of the content on the page No. 15
Preface ThismanualprovidesinstructionsforservicingtheWFM90DandWFM91D HandheldWaveform, Vector, Picture, andAudioMonitors. Thismanual describesfeaturesandspecificationsthatarecommontoallgeneratormodules. Theseincludesystemconfigurationandthecommoncontrolinterface. AboutThisManual Thismanualiscomposedofthefollowingsections: Specificationsliststheelectricalandenvironmentalspecificationsand providesageneralproductdescription. Operating Informationdescribesinstallationandfrontpaneloperationofthe
Summary of the content on the page No. 16
Preface ContactingTektronix Phone 1-800-833-9200* Address Tektronix, Inc. Department or name (if known) 14200 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA Web site www.tektronix.com Sales support 1-800-833-9200, select option 1* Service support 1-800-833-9200, select option 2* Technical support www.tektronix.com/support 1-800-833-9200, select option 3* 6:00 a.m. -- 5:00 p.m. Pacific Standard Time * ThisphonenumberistollfreeinNorthAmerica.Afterofficehours,pleaseleaveavoicemail message
Summary of the content on the page No. 17
Specifications
Summary of the content on the page No. 18
Summary of the content on the page No. 19
Specifications Thissectionincludesthefollowinginformation: Productdescription Specificationstables ProductDescription Thehandheld, self-contained, Tektronix WFM90Dand WFM91Dtelevision waveformmonitorscanmonitoranaloganddigitalsignals. Themonitorsprovide compositeandcomponentwaveformdisplaysaswellasvectorandpicture displays. Thesemonitorscanbeusedinthetraditionalin-houseapplicationsoftelevision production, post-production, andsignaltransmission. Inaddition, theirportabili- tyallowsthemtobeuse
Summary of the content on the page No. 20
Specifications CharacteristicsTables Thetablesusethefollowingabbreviations: PerformanceRequirement(Req). Allperformancerequirementsinthespecifica- tiontablesareidentifiedwith Req, andcanbeassuredbycompletingthe PerformanceCheck Procedurelocated in theservicemanual. Allowawarm-up timeof20minutes. Performancerequirementsintheelectricalspecificationsarevalidoveran ambienttemperaturerangeof+20°Cto+30°C. ThePerformanceRequirement toleranceslistedintheElectricalSpecificationaredoubledoverthetemperatur
