Extron electronic 50 manual Troubleshooting, Worksheets, System reset to factory defaults

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on page 3-7. Other than in view-only mode, if the user pushes a front panel button when the switcher is in executive mode, that button’s associated LED flashes twice and goes out.

To toggle executive mode on or off, press and hold the Video and Audio buttons for approximately two seconds. The Video and Audio LEDs blink twice to indicate the mode change. Release the Video and Audio buttons. To toggle the executive mode state again, press and hold the Video and Audio buttons again.

System reset to factory defaults

To reset the switcher to the factory default settings, press and hold the Esc button on the front panel while AC power is being applied. Continue to hold the Esc button until the power-up sequence is completed (all LEDs turn off, the Video and Audio LEDs turn on, and the Esc LED blinks). System reset clears all ties and presets, and sets all audio gain levels to unity gain (+0dB).

Troubleshooting

This paragraph gives recommendations on what to do if you have problems operating the Matrix 50, and it provides examples and descriptions for some image problems you may encounter.

General checks

1. Ensure that all devices are plugged in and powered on. The switcher is receiving power if one of the input LEDs is lit.

2. Ensure an active input is selected for output on the switcher.

3. Ensure that the proper signal format is supplied.

4. Check the cabling and make corrections as necessary.

5. Call the Extron S3 Sales & Technical Support Hotline if necessary.

Plasma display S-video problem

Extron has encountered a problem with the S-video output by some video conference codecs. Some codecs change the DC offset on the chrominance (C) so that it is very different from the level on the luminance (Y). This can cause a plasma display to come up in the wrong size mode.

With the matrix switcher taken out of the system, the plasma works fine. It looks like a Extron problem, but it is not. The matrix switcher boosts the bad codec output, which makes the plasma go to the wrong setting.

Solution: Try placing an Extron video DC block adapter, part #26-495-01, on the luminance (Y) input to the switcher from the codec.

Worksheets

Rather than trying to remember the configuration for each preset, use worksheets to record this information. Make copies of the blank worksheet on page 3-19 and use one for each preset configuration. The forms accommodate all Matrix 50 Series switcher configurations. Cross off all unused or inactive inputs and outputs. Use different colors for video and audio.

Matrix 50 Series Switchers • Operation 3-15

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Contents Matrix 50 Series Matrix Audio/Video SwitchersInstrucciones de seguridad Español Safety Instructions EnglishConsignes de Sécurité Français Sicherheitsanleitungen DeutschQS-1 Quick Start Matrix 50 Series SwitchersQuick Start Matrix 50 Series Switchers, cont’d Table of Contents Table of Contents, cont’d Matrix 50 Series Switchers Table of Contents Iii Iv Matrix 50 Series Switchers Table of Contents One Introductiontroduction, cont’d About the Matrix 50 Series SwitchersMatrix 50 Series Switchers Introduction Matrix FeaturesIntroduction, cont’d Matrix 50 switcherMatrix 50 Series Switchers Introduction Introduction, cont’d Two Cabling and Rear Panel Views Installationstallation, cont’dRack Mounting the Switcher Matrix 50 Series Switchers InstallationAudio input and output connections audio models only Power connectionVideo input and output connections video models only RS-232/422 connection Installation, cont’dSimple external sync connection example External sync connectionMultiple device external sync connection example Additional rear panel viewsThree Input buttons, output buttons, and LEDs Front Panel Controls and IndicatorsOperationeration, cont’d DefinitionsControls Front Panel Operations PowerCreating a configuration Operation, cont’dExample 1 Creating a tie Example 1 Creating a set of video and audio tiesExample 3 Removing a tie from a set of video and audio ties Example 2 Adding a tie to a set of video and audio tiesExample 3 Selecting audio and selecting input Viewing a configurationExample 4 Viewing the current configuration Example 4e Viewing the current configuration, audio only Example 5 Muting and unmuting an output Muting and unmuting video and/or audio11 Example 5, step d Muting and unmuting outputs Using global memory presetsExample 7 Recalling a preset Example 6 Saving a presetExample 8 Viewing and adjusting an audio level Viewing and adjusting the audio level14 Example 8 Viewing the audio level Executive mode front panel security lockoutWorksheets TroubleshootingSystem reset to factory defaults Plasma display S-video problem16 Worksheet example 1 System equipment Worksheet example 1 System equipment17 Worksheet example 2 Daily configuration Worksheet example 2 Daily configuration18 Worksheet example 3 Test configuration Worksheet example 3 Test configurationConfiguration worksheet Operation, cont’d Four Programmer’ser’sGuide,Guidecont’d Host-to-Switcher InstructionsSwitcher-Initiated Messages Matrix 50 Series Switchers Programmer’s GuideUsing the Command/Response Table Switcher Error ResponsesProgrammer’s Guide, cont’d Command/Response TableCommand Ascii Command Response Additional description Command/response table for SIS commands Cont’d View ties, gain, and presets Five MatrixSoftware,cont’d Matrix Switcher+ Control ProgramInstalling the software Using the softwareWindows buttons Extron Matrix Switcher+ Control Program window blankWindows menus Matrix Software, cont’dButton-Label Generator Using emulation modeUsing the help system Extron’s Button-Label Generator window AAppendix a Matrix 50 Series Switchers Specifications Specificationsecifications, cont’dAudio input Matrix 50 Option Kits Specifications, cont’dMatrix 50 Series switchers part numbers Part NumbersCables Optional AccessoriesVideo Cable Pre-cut cablesExtron Part BNC-4 Mini HR Cable AppendixBB ReferenceInformation,co t’d Hardware ProceduresOpening the switcher Matrix 50 Series Switchers Reference InformationFigure B-2 Side view, Matrix 50 S-video and audio switcher Closing the switcherReference Information, cont’d Installing a video moduleRemoving a video module Removing a video module on page B-5 Installing an audio moduleRemoving an audio module On page B-3Swapping the serial ports Figure B-8 Key and pin 1 mark Installing a firmware updateReplacing the AC fuse Setting the front panel jumperButton Labels Matrix 50 Series Switchers Reference Information B-11Blank Figure B-10 Button label blanks, 12-button strip Matrix 50 Series Switchers Reference Information B-13Reference Information, cont’d FCC Class a Notice Extron’s Warranty Extron Electronics, USA
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