Monitor Audio Vector Bedienungsanleitung

User ManualWFM 90 & WFM 91Handheld Waveform, Vector,Picture, & Audio Monitor070-8968-05This document supports firmware version 1.00and above.

Table of ContentsviWFM 90 & WFM 91 User Manual

WFM 90 & WFM 91 User ManualviiGeneral Safety SummaryReview the following safety precautions to avoid injury and preventdamage to this product or a

General Safety SummaryviiiWFM 90 & WFM 91 User ManualSafety Terms and SymbolsTerms in This Manual. These terms may appear in this manual:WARNING.

WFM 90 & WFM 91 User ManualixPrefaceThis manual is a guide for operators of the WFM 90 and WFM 91Waveform, Vector, Picture, and Audio Monitor, and

PrefacexWFM 90 & WFM 91 User ManualThe WFM 90 Handheld Waveform, Vector, Picture, and Audio Monitor

WFM 90 & WFM 91 User Manual1–1Getting Started: Product DescriptionThe Tektronix WFM 90 and WFM 91 is a handheld, self-contained,rasterizing televi

Getting Started: Product Description1–2WFM 90 & WFM 91 User ManualDescription of FeaturesRasterized Color LCD DisplayThe WFM 90 and WFM 91 uses a

Getting Started: Product DescriptionWFM 90 & WFM 91 User Manual1–3NOTE. Only the NiCad battery pack recharges in the instrument.Alkaline batteries

Getting Started: Product Description1–4WFM 90 & WFM 91 User Manualmodes. The signal filters are Flat (no filter) and Luminance(low-pass filtered).

Getting Started: Product DescriptionWFM 90 & WFM 91 User Manual1–5Vector, or Audio displays. The WIP window can be positioned to anyone of the fou

Copyright  Tektronix, Inc. All rights reserved.Tektronix products are covered by U.S. and foreign patents, issued andpending. Information in this pub

Getting Started: Product Description1–6WFM 90 & WFM 91 User ManualMore Information Instrument options and accessories, as well as orderinginforma

WFM 90 & WFM 91 User Manual1–7Options and AccessoriesThis section lists the options which can be ordered as well as thestandard and optional acces

Getting Started: Options and Accessories1–8WFM 90 & WFM 91 User ManualAccessoriesStandard accessories are shipped with every instrument whileoptio

WFM 90 & WFM 91 User Manual1–9InstallationThis section gives instructions for the mechanical and electricalinstallation of the WFM 90 and WFM 91.

Getting Started: Installation1–10WFM 90 & WFM 91 User Manual2. Package the instrument in the original packaging materials. If theoriginal packagin

Getting Started: InstallationWFM 90 & WFM 91 User Manual1–11123456Figure 1–1: Packing the Option 33 travel case1 The pouch in the cover of the tra

Getting Started: Installation1–12WFM 90 & WFM 91 User ManualElectrical InstallationPower SourceThe WFM 90 and WFM 91 are designed to operate from

Getting Started: InstallationWFM 90 & WFM 91 User Manual1–13Battery Installation and RemovalReplacing Alkaline Batteries. The WFM 90 and WFM 91

Getting Started: Installation1–14WFM 90 & WFM 91 User ManualReplacing NiCad Batteries. The optional NiCad battery pack has aconnector which fits

Getting Started: InstallationWFM 90 & WFM 91 User Manual1–15Operational JumpersThe only operational modifications made to this monitor are donethr

WARRANTYIn order to obtain service under this warranty, Customer must notify Tektronix of the defectbefore the expiration of the warranty period and m

Getting Started: Installation1–16WFM 90 & WFM 91 User ManualDesk StandThe optional desk stand provides the user with a stable means to holdthe ins

WFM 90 & WFM 91 User Manual2–1Operation Basics: Functional OverviewThis section describes the WFM 90 and WFM 91 controls andconnectors. Descriptio

Operation Basics: Functional Overview2–2WFM 90 & WFM 91 User ManualFigure 2–1: WFM 90 keypad

Operation Basics: Functional OverviewWFM 90 & WFM 91 User Manual2–3Menu ControlMenu operation and selections are detailed in Using the Menusstarti

Operation Basics: Functional Overview2–4WFM 90 & WFM 91 User ManualInstrument ResetExtraordinary conditions may cause the WFM 90 and WFM 91control

Operation Basics: Functional OverviewWFM 90 & WFM 91 User Manual2–5Audio Input and Output ConnectorsAUDIO IN. A standard three-pin XLR connector

Operation Basics: Functional Overview2–6WFM 90 & WFM 91 User ManualAudio Out. A standard stereo mini-headphone jack for the output ofthe audio i

Operation Basics: Functional OverviewWFM 90 & WFM 91 User Manual2–7Variable Gain ModeThe Variable Gain mode allows the user to vary signal gain fo

Operation Basics: Functional Overview2–8WFM 90 & WFM 91 User ManualCAUTION. Instrument AdjustmentDo not attempt to adjust the instrument without u

Operation Basics: Functional OverviewWFM 90 & WFM 91 User Manual2–92 The EXT REF message appears in the Waveform and Vector displaymodes when the

Operation Basics: Functional Overview2–10WFM 90 & WFM 91 User Manual

WFM 90 & WFM 91 User Manual2–11TutorialThe following tutorial guides you through a procedure whichexercises the different functions of the WFM 90

Operation Basics: Tutorial2–12WFM 90 & WFM 91 User ManualInitial Equipment ConnectionsH Connect power to the WFM 90 or WFM 91 by plugging in theAC

Operation Basics: TutorialWFM 90 & WFM 91 User Manual2–133. Using the waveform monitorPress the MENU button to enter the Operating menu. The curre

Operation Basics: Tutorial2–14WFM 90 & WFM 91 User ManualSignal Reference. Press the Bezel Button below the menu selectionlabeled REF. Notice th

Operation Basics: TutorialWFM 90 & WFM 91 User Manual2–15Use the right two Bezel Buttons to adjust the signal gain to anydesired level. Select VAR

Operation Basics: Tutorial2–16WFM 90 & WFM 91 User ManualAlternate Phase. This menu selection appears in the WFM 91 only.Select ALT PH ON from t

Operation Basics: TutorialWFM 90 & WFM 91 User Manual2–17Return to the Picture display mode and press the right two BezelButtons to adjust the pic

Operation Basics: Tutorial2–18WFM 90 & WFM 91 User ManualLocation. Press the right Bezel Button a few times and notice thatthe location of the W

Operation Basics: TutorialWFM 90 & WFM 91 User Manual2–19Select the Waveform display mode to be displayed in the WIP menu.Use the Y button to posi

WFM 90 & WFM 91 User ManualiTable of ContentsTable of Contents i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Sa

Operation Basics: Tutorial2–20WFM 90 & WFM 91 User Manual

WFM 90 & WFM 91 User Manual3–1Reference: Using the MenusThis section begins with general information on menu operation.Descriptions of each menu s

Reference: Using the Menus3–2WFM 90 & WFM 91 User ManualH When menu selections are made, changes to the display occurimmediately.H When the Config

Reference: Using the MenusWFM 90 & WFM 91 User Manual3–3Audio Display Mode Operating MenuREFERENCE dBu. Cycles the Audio reference level through

Reference: Using the Menus3–4WFM 90 & WFM 91 User ManualAUDIO. Selects the Audio display mode to be shown in the WIPwindow.LOCATION. Cycles th

Reference: Using the MenusWFM 90 & WFM 91 User Manual3–5Configuration Menu INPUT CategoryDC REST. Toggles the DC restorer speed between SLOW and

Reference: Using the Menus3–6WFM 90 & WFM 91 User ManualALT PH. This menu selection appears on the WFM 91 only. Pressingthis Bezel Button toggle

Reference: Using the MenusWFM 90 & WFM 91 User Manual3–7Configuration Menu ALARMS CategoryALARM. Pressing this Bezel Button toggles the Alarm mo

Reference: Using the Menus3–8WFM 90 & WFM 91 User ManualLine Select MenuThe Line Select menu is displayed when the Line Select mode isturned on. T

WFM 90 & WFM 91 User Manual3–9Making MeasurementsThis section contains descriptions of the different graticules providedwith the WFM 90 and WFM 91

Table of ContentsiiWFM 90 & WFM 91 User ManualInstallationInstrument Packaging 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference: Making Measurements3–10WFM 90 & WFM 91 User ManualVertical ScalesThe NTSC graticule is scaled in IRE units and extends from –40 to+120

Reference: Making MeasurementsWFM 90 & WFM 91 User Manual3–11Making Waveform MeasurementsStandard MeasurementsStandard amplitude and timing measur

Reference: Making Measurements3–12WFM 90 & WFM 91 User ManualRMGBCYGYLChrominance gain andphase target boxesYellowRedR-Y90_MagentaColor referenceQ

Reference: Making MeasurementsWFM 90 & WFM 91 User Manual3–13Chrominance Vector TargetsThe chrominance vectors terminate in a system of graticule

Reference: Making Measurements3–14WFM 90 & WFM 91 User ManualDifferential Phase and Gain Measurement BoxDifferential gain (dG) and differential ph

Reference: Making MeasurementsWFM 90 & WFM 91 User Manual3–15Audio GraticuleThe audio graticule does not utilize a horizontal scale since thesigna

Reference: Making Measurements3–16WFM 90 & WFM 91 User ManualMaking Audio MeasurementsBasic audio system measurements such as signal amplitude and

WFM 90 & WFM 91 User ManualA–1Appendix A: Performance SpecificationThe specification tables use the following abbreviations:Performance Requiremen

Appendix A: Performance SpecificationA–2WFM 90 & WFM 91 User ManualElectrical SpecificationsA-1. Vertical deflection system CATEGORYDESCRIPTIONFr

Appendix A: Performance SpecificationWFM 90 & WFM 91 User ManualA–3A-1.Vertical deflection system (Continued)CATEGORYDESCRIPTIONTransient Response

Table of ContentsWFM 90 & WFM 91 User ManualiiiReadout Description 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TutorialRequir

Appendix A: Performance SpecificationA–4WFM 90 & WFM 91 User ManualA-2.DC restorationCATEGORYDESCRIPTIONDC Restorer Clamp TimeREF:Back Porch.Frequ

Appendix A: Performance SpecificationWFM 90 & WFM 91 User ManualA–5A-4.Horizontal deflection system CATEGORYDESCRIPTIONSweep REQ: Sweep will occu

Appendix A: Performance SpecificationA–6WFM 90 & WFM 91 User ManualA-5.Vector mode CATEGORYDESCRIPTIONChrominance ProcessingNominal Subcarrier Fr

Appendix A: Performance SpecificationWFM 90 & WFM 91 User ManualA–7A-5.Vector mode (Continued)CATEGORYDESCRIPTIONSubcarrier RegeneratorPhase Shift

Appendix A: Performance SpecificationA–8WFM 90 & WFM 91 User ManualA-6.SynchronizationCATEGORYDESCRIPTIONInput Requirements REQ: Internal Referenc

Appendix A: Performance SpecificationWFM 90 & WFM 91 User ManualA–9A-8.Environmental characteristics CATEGORYDESCRIPTIONOperating Altitude REQ: T

Appendix A: Performance SpecificationA–10WFM 90 & WFM 91 User ManualA-9.Power source CATEGORYDESCRIPTIONBatteryREF:6 C-sized cell batteries, or T

Appendix A: Performance SpecificationWFM 90 & WFM 91 User ManualA–11Table A–1: Certifications and compliances CategoryStandards or descriptionEC D

Appendix A: Performance SpecificationA–12WFM 90 & WFM 91 User Manual

WFM 90 & WFM 91 User ManualB–1Appendix B: User ServiceThis section contains instructions for user and preventive mainte-nance. If the instrument i

Table of ContentsivWFM 90 & WFM 91 User ManualStandard Measurements 3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak White 3–11. .

Appendix B: User ServiceB–2WFM 90 & WFM 91 User ManualDisplay ScreenThe protective screen over the LCD display is susceptible tosmudging from dirt

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Table of ContentsWFM 90 & WFM 91 User ManualvList of IllustrationsFigure 1–1: Packing the Option 33 travel case 1–11. . . . . . . . . . . Figure 1