Extron electronic 3200s manual Changing the Audio Output Card Gain Jumpers

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Upgrades and Troubleshooting, cont’d

Changing the Audio Output Card Gain Jumpers

The gain indicated by an FPC 1000 LCD panel or a Host computer running Extron’s Matrix 6400 System Control software may be off by 6dB depending on the type of output (balanced or unbalanced) and jumper positions on the Audio Output card. If the Audio card jumpers for each output are set to match the output type, the indicated gain will match the actual gain for all outputs.

Each Audio Output card has eight pairs of jumpers (one pair for each stereo, two channel output on the card) which enables the gain to be changed by 6dB for each output. The pairs consist of headers H9 and H10, H11 and H12, H13 and H14 through H23 and H24 (jumper locations are shown in Figure 5-9.A below). The jumpers plug onto header pins 1 and 2 (upper position) or 2 and 3 (lower position) and each position’s affect on the output signal follows:

Jumper on pins 1 and 2, output gain will be 0dB unbalanced and +6dB balanced. Jumper on pins 2 and 3, output gain will be –6dB unbalanced and 0dB balanced.

Jumpers for unbalanced output go on pins 1 and 2, balanced on pins 2 and 3. The

Matrix 6400 Audio switchers ship with all gain jumpers on header pins 1 & 2.

If a particular output’s gain is going to be changed, both jumpers for that output must be changed; for example, the jumpers on H9 and H10 may be moved from the upper position (pins 1 and 2) to the lower position (pins 2 and 3). Moving the pair of jumpers from the upper position to the lower position results in a –6dB gain change for each audio channel of that output, balanced or unbalanced.

 

 

 

NOTE:

 

1

1

1 Switch in pairs only

3

3

 

3

 

 

 

Audio Out Board

Top

H9

H10

H25

DO NOT

CHANGE

Jumper

Setting

H26

H23

H24

Bottom

Figure 5-9.A Audio output card gain jumpers.

Each output card has eight outputs covering outputs 1-8, 9-16, 17-24, 25-32, 33-40, 41-48, 49-56 and 57-64. Headers H9 and H10 are for the lowest number output for a slot, headers 23 and 24 are for the highest number output for a slot. For example, to

5-10 Matrix 3200/6400 Series Upgrades and Troubleshooting

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Contents Audio Switcher Matrix 3200 and 6400 SeriesSafety Instructions English Consignes de Sécurité FrançaisSicherheitsanleitungen Deutsch Instrucciones de seguridad EspañolQuick Start Matrix 3200/6400 Series Matrix 3200/6400 Series Quick Start QS-1Quick Start Matrix 3200/6400 Series, cont’d Matrix 3200/6400 Series Quick StartTable of Contents Table of Contents, cont’d One What is a Matrix 6400 Audio Switcher? FeaturesIntroductiontroduction, cont’d Matrix 3200/6400 Series IntroductionFeature Descriptions Inputs OutputsIntroduction, cont’d Matrix 6400 Audio Switcher SpecificationsMatrix 3200/6400 System Manuals Audio input audio BME Introduction, cont’d Two Matrix 6400 Audio Switcher Installation Installing the Matrix 6400 Audio BMEMatrix 3200/6400 Series Installation Introductionstallation, cont’dSetting BME Addresses Connecting the BME Comm interconnecting cablesInstallation, cont’d Connecting the RS-232/RS-422 Cable to BME #0Connecting the AC Power Cables to the BMEs Applying AC Power to the BMEsUsing the Audio Captive Screw Connectors Virtualizing the Matrix 3200/6400 Switcher/SystemMatrix 6400 Audio Input/Output Cabling A Matrix 6400 Audio Switcher Stereo backplane D Align the stereo audio connectors before plugging them Installation, cont’d Three ControlSoftware,cont’d Matrix 3200/6400 Series Control SoftwareMatrix 3200/6400 Series Control Software Control Software, cont’d Igure 3-3.AMatrix 3200/6400 Series Control Software A Main Screen Ties How to Create Rooms within the Matrix 3200/6400 System Igure 3-7.A Matrix 3200/6400 Series Control Software How to Program the Matrix 3200/6400 System in Emulate Mode How to Save and Restore the Matrix 3200/6400 Settings 10.A Four Serial Communications Port Programmer’ser’sGuide,Guidecont’dMatrix 3200/6400 Series Programmer’s Guide Host to Switcher Communications Command/Response TableCOMMAND/RESPONSE Table Programmer’s Guide, cont’dROOM# Name Virtual Outputs VIRT-OUT# Name LVL1 LVL2 LVL6 Vmutamut ØVI Read RGB Delay for 1 ch Out Dly Set RGB Delay for 1 ch Quick Recall Preset Rpr Switcher Generated Unsolicited Responses Five UpgradesandandTroubleshooting,co t’d Upgrade and Troubleshooting ProceduresMatrix 3200/6400 Series Upgrades and Troubleshooting Adding a Front Panel Controller to an existing systemMatrix 6400 Audio BME Internal Access Upgrades and Troubleshooting, cont’d Installing a Software UpdateSwapping BME #0 RS-232 / RS-422 Ports Ribbon Cable ConnectorsSwapping Serial Ports RS-232/RS-422 Troubleshooting a Matrix 3200/6400 System Problem Power SuppliesCommunications System StatusPrimary Matrix 6400 Audio Switcher Upgrade Changing the Matrix Size A Inserting an audio card into slotDetermining Audio Switcher Circuit Card Population Changing the Audio Output Card Gain Jumpers A Audio output card gain jumpersAdding BMEs to a Matrix 3200/6400 System Adding a Matrix 6400 Audio BMEUpgrade System Software Procedure Software Procedure Before and After a Hardware UpgradeBefore Hardware Changes After Hardware Changes Upgrades and Troubleshooting, cont’d Reference Information AAppendix aMatrix 3200/6400 Series Part Numbers ReferenceInformation,c t’dMatrix 3200/6400 Series Reference Information Extron Part Matrix 6400 Wideband Switcher Iofr Matrix 3200/6400 Series Part Numbers from previousBNC Cables Super High Resolution SHR BNC Cables Reference Information, cont’dMatrix 3200/6400 Series Part Numbers Related Part NumbersBinary/Hex/Decimal Conversion Table Pre-cut CablesGlossary of terms Matrix 3200/6400 Series Reference Information Reference Information, cont’d PCB Printed Circuit Board Reference Information, cont’d Virtual conference room See videoconferencing Matrix 3200/6400 Series Reference Information A-11Reference Information, cont’d FCC Class a Notice Extron’s Warranty Extron Electronics, USA