Artisan AMM768 Manuale di Servizio

Service ManualAMM768Audio Multi-Channel Monitor071-2171-01WarningThe servicing instructions are for use by qualifiedpersonnel only. To avoid personal

General Safety SummaryviAMM768 Audio Multi-Channel Monitor Service ManualDo Not Operate in an Explosive Atmosphere.Keep Product Surfaces Clean and Dry

AMM768 Audio Multi-Channel Monitor Service ManualviiService Safety SummaryOnly qualified personnel should perform service procedures. Read this Servic

Service Safety SummaryviiiAMM768 Audio Multi-Channel Monitor Service Manual

AMM768 Audio Multi-Channel Monitor Service ManualixPrefaceThis manual supports servicing to the module level of the AMM768 AudioMulti-Channel Monitor,

PrefacexAMM768 Audio Multi-Channel Monitor Service ManualTable i: Related DocumentationItemPurpose LocationAMM768 Audio Multi-ChannelMonitor Quick Sta

Introduction

AMM768 Audio Multi-Channel Monitor Service Manual1-1IntroductionThe AMM768 Audio M onitor provides a powerful monitoring solution forbroadcast, produc

Introduction1-2AMM768 Audio Multi-Channel Monitor Service ManualFor a complete list of options, refer to the AMM768 Audio Multi-ChannelMonitor Quick S

IntroductionAMM768 Audio Multi-Channel Monitor Service Manual1-3There are two methods to power down the audio monitor.Power Down -- Unplug the instrum

Copyright © Tektroni x. All rights reserved. Licensed software products are owned by Tekt ronix or it s subsidiaries orsuppliers, and are protected by

Introduction1-4AMM768 Audio Multi-Channel Monitor Service Manual

Theory of Operation

AMM768 Audio Multi-Channel Monitor Service Manual2-1Theory of OperationThe AMM768 is a modular audio monitor. It can be configured, with options, toac

Theory of Operation2-2AMM768 Audio Multi-Channel Monitor Service ManualLissajous DataExternal Ref InBlack or Tri--levelLissajous and RasterProcessing,

Theory of OperationAMM768 Audio Multi-Channel Monitor Service Manual2-3Main BoardThe serial digital circuitry receives the SDI input stream after it h

Theory of Operation2-4AMM768 Audio Multi-Channel Monitor Service Manualsignaling, and controls most other internal devices though either the SP I or t

Theory of OperationAMM768 Audio Multi-Channel Monitor Service Manual2-5The audio data has two paths to the display. On one path, peak values are sent

Theory of Operation2-6AMM768 Audio Multi-Channel Monitor Service Manualconvert this output to any other supply voltage that they require at the point

Adjustment Procedures

Warranty 2Tektroni x warrants tha t this product will be free from defects in m aterials and workmanship for a period of one (1)year from the date of

AMM768 Audio Multi-Channel Monitor Service Manual3-1AdjustmentsThe waveform monitor does not normally require any adjustments. Theadjustments which ca

Adjustments3-2AMM768 Audio Multi-Channel Monitor Service ManualTable 3- 1: Required test equipment (Cont.)Test equipmentExampleRequirementsVoltmeter F

AdjustmentsAMM768 Audio Multi-Channel Monitor Service Manual3-314. Use the waveform monitor’s General Purpose knob to adjust the signalamplitude (not

Adjustments3-4AMM768 Audio Multi-Channel Monitor Service Manual

Maintenance

AMM768 Audio Multi-Channel Monitor Service Manual4-1General MaintenanceThis section contains the information needed to perform periodic and corrective

General Maintenance4-2AMM768 Audio Multi-Channel Monitor Service Manual5. Handle circuit boards by the edges when possible.6. Do not slide the circuit

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-3CAUTION. Avoid the use of chemical cleaning agents that might damage theplastic

General Maintenance4-4AMM768 Audio Multi-Channel Monitor Service ManualCAUTION. To prevent damage from electrical arcing, ensur e that circuit boardsa

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-55. Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for th

General Maintenance4-6AMM768 Audio Multi-Channel Monitor Service ManualStandard boards and modules:H Power SupplyH Display Assembly (LCD, Backlight in

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-7Table 4- 3: Symptoms and causesSymptom Possible Sources or Recommended Detailed

General Maintenance4-8AMM768 Audio Multi-Channel Monitor Service ManualTable 4- 3: Symptoms and causes (Cont.)Symptom Possible Sources or Recommended

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-9Table 4- 3: Symptoms and causes (Cont.)Symptom Possible Sources or Recommended

General Maintenance4-10AMM768 Audio Multi-Channel Monitor Service Manualproblem to a board. You can run them at any time for informational purposes bu

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-11This section describes methods for verifying the proper operation of theAMM768

General Maintenance4-12AMM768 Audio Multi-Channel Monitor Service Manual3.3 V supplies respectively. If these are lit the most likely causes are the f

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-13Table 4- 6: Analog Audio secondary supplies (boar d not present for Option DSi

AMM768 Audio Multi-Channel Monitor Service ManualiTable of ContentsGeneral Safety Summary v...Service Safety Summary v

General Maintenance4-14AMM768 Audio Multi-Channel Monitor Service Manual3. If the external monitor does show the nominal screen, check the gray ribbon

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-151. Prepare a test oscilloscope with the following settings:H Horizontal Scale

General Maintenance4-16AMM768 Audio Multi-Channel Monitor Service Manual4. If the Diagnostics log reports Audio DSP Self Test–dsp1, perform thefollowi

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-17Frequencies are shown in the Top Section — read carefully! These tests do nots

General Maintenance4-18AMM768 Audio Multi-Channel Monitor Service ManualThe advanced diagnostics tests the lissajous data path between the Audio andMa

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-19F221, F222, F223SecondaryPower SupplyTest PointsF231, F232,F233, F234DS232DS23

General Maintenance4-20AMM768 Audio Multi-Channel Monitor Service ManualSecondaryPower SupplyTest PointsJ641DS511Figure 4- 2: Audio Main board power s

General MaintenanceAMM768 Audio Multi-Channel Monitor Service Manual4-21SecondaryPower SupplyTest PointsFigure 4- 3: Analog Audio board power supply t

General Maintenance4-22AMM768 Audio Multi-Channel Monitor Service Manual

AMM768 Audio Multi-Channel Monitor Service Manual4-23Removal and Replacement ProceduresThis section contains information about removal and replacement

Table of ContentsiiAMM768 Audio Multi-Channel Monitor Service ManualMaintenanceGeneral Maintenance 4--1...Preventin

Removal and Replacement Procedures4-24AMM768 Audio Multi-Channel Monitor Service ManualTable 4- 8: Tools required for module removalItemno.Name Descri

Removal and Replacement ProceduresAMM768 Audio Multi-Channel Monitor Service Manual4-25Module RemovalThe removal of most of the modules is a straightf

Removal and Replacement Procedures4-26AMM768 Audio Multi-Channel Monitor Service ManualBlank panelAudioFigure 4- 4: Module securing screwsThe Mezzanin

Removal and Replacement ProceduresAMM768 Audio Multi-Channel Monitor Service Manual4-27Analog Audio and Audio Main boards. Remove the entire Audio mod

Removal and Replacement Procedures4-28AMM768 Audio Multi-Channel Monitor Service ManualRemove the fan and baffle as a unit.1. From outside the instrum

Removal and Replacement ProceduresAMM768 Audio Multi-Channel Monitor Service Manual4-29Front Panel screwsBezel securing clipsFigure 4- 5: Front panel

Removal and Replacement Procedures4-30AMM768 Audio Multi-Channel Monitor Service Manual

AMM768 Audio Multi-Channel Monitor Service Manual4-31Repackaging InstructionsThis section contains the information needed to repackage the waveform mo

Repackaging Instructions4-32AMM768 Audio Multi-Channel Monitor Service Manual

Replaceable Parts

Table of ContentsAMM768 Audio Multi-Channel Monitor Service ManualiiiList of TablesTable i: Related documentation x...Table

AMM768 Audio Multi-Channel Monitor Service Manual5-1Replaceable PartsThis section contains a list of the replaceable modules for the AMM768 AudioMulti

Replaceable Parts5-2AMM768 Audio Multi-Channel Monitor Service ManualNew Modules. You may purchase replacement modules in the same way as otherreplace

Replaceable PartsAMM768 Audio Multi-Channel Monitor Service Manual5-3Replaceable mechanical parts (Figure 5- 1)Fig. &indexnumberTektronix p artnum

Replaceable Parts5-4AMM768 Audio Multi-Channel Monitor Service ManualReplaceable mechanical parts (Figure 5- 1) (Cont.)Fig. &indexnumberName &

Replaceable PartsAMM768 Audio Multi-Channel Monitor Service Manual5-5Ground lug1J130J631J8J9J13J16J14J2J1To J14To J16J4GND Lug2 3456789101112131415161

Replaceable Parts5-6AMM768 Audio Multi-Channel Monitor Service ManualReplaceable cables, connectors and other mechanical parts (Figure 5- 2)Fig. &

Replaceable PartsAMM768 Audio Multi-Channel Monitor Service Manual5-71To J890J890J17J18J29J27J10To J10CN1CN2CN3To J17throughSlot ATo CN3 through Slot

Replaceable Parts5-8AMM768 Audio Multi-Channel Monitor Service ManualMain Board replaceable parts (Figure 5- 3)Fig. &indexnumberTektronix p artnum

Replaceable PartsAMM768 Audio Multi-Channel Monitor Service Manual5-9F221,F222,F223F231,F232,F233,F2341Figure 5- 3: Main board replaceable components

Table of ContentsivAMM768 Audio Multi-Channel Monitor Service ManualList of FiguresFigure 2--1: Main block diagram 2--2...Fi

Replaceable Parts5-10AMM768 Audio Multi-Channel Monitor Service ManualReplaceable parts for the optional-accessory analog audio breakout cable assembl

Replaceable PartsAMM768 Audio Multi-Channel Monitor Service Manual5-11Replaceable parts listFig. &indexnumberTektronix p artnumberSerial no .effec

Replaceable Parts5-12AMM768 Audio Multi-Channel Monitor Service Manual

AMM768 Audio Multi-Channel Monitor Service ManualvGeneral Safety SummaryReview the following safety precautions to avoid injury and prevent damage tot