Extron electronic ISM 182 manual Optimizing the Audio, Troubleshooting, General checks

Page 42

Operation, cont’d

Optimizing the Audio

Each individual input audio level can be adjusted within a range of -24dB to +9dB, so there are no noticeable volume differences between sources and for the best headroom and signal-to-noise ratio. Adjust the audio gain and attenuation as follows:

1.

Connect audio sources to all desired inputs and connect the audio outputs to

 

output devices such as audio players. See Input connections and Output

 

connections, in chapter 2, Installation. For best results, wire all of the inputs

 

and the outputs unbalanced.

2.

Power on the audio sources, the switcher, and the audio players.

3.

Switch among the inputs (see Selecting an input, in this chapter), listening to

 

the audio with a critical ear or measuring the output audio level with test

 

equipment, such as a VU meter.

4.

As necessary, adjust the audio level of each input (see Video & Audio

 

Configuration menu, in this chapter) so that the approximate output level is the

 

same for all selected inputs.

Troubleshooting

The following tips may help you in troubleshooting.

•Some symptoms may resemble others, so you may want to look through all of the examples before attempting to solve the problem.

•Be prepared to backtrack in case the action taken does not solve the problem.

•It may help to keep notes and sketches in case the troubleshooting process gets lengthy. This will also give you something to discuss if you call for technical support.

•Try simplifying the system by eliminating components that may have introduced the problem or made it more complicated.

•For sync-related problems: Portable digital projectors are designed to operate close to the video source. Sync problems may result from using long cables or from improper termination. A sync adapter, such as Extron’s ASTA (active sync termination adapter), may help solve these problems.

•For LCD and DLP projectors and plasma displays: In addition to the sync- related information above, check the user’s manual that came with the projector for troubleshooting tips, as well as for settings and adjustments. Each manufacturer may have its own terms, so look for terms like “auto setup”, “auto sync”, “pixel phase”, and “tracking”.

General checks

1.

Ensure that all devices are plugged in and powered on. The switcher is

 

receiving power if the LCD is displaying the default display cycle.

2.

Ensure an active input is selected 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.

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Contents Integration Scaling Matrix Switchers ISM 482 & ISMSicherheitsanleitungen Deutsch Safety Instructions EnglishConsignes de Sécurité Français Instrucciones de seguridad EspañolQuick Start Integration Scaling Matrix Switcher QS-1Quick Start Integration Scaling Matrix Switcher, cont’d QS-2Table of Contents Table of Contents, cont’d Integration Scaling Matrix Switcher Table of Contents Iii Iv Integration Scaling Matrix Switcher Table of Contents One Introductiontroduction, cont’d About the SwitcherIntegration Scaling Matrix Switcher Introduction About this ManualExtron ISM Features Introduction, cont’dIntegration Scaling Matrix Switcher Introduction Introduction, cont’d Two Tabletop placement Installationstallation, cont’dMounting the Switcher Integration Scaling Matrix Switcher InstallationCabling and Rear Panel Views Input connectionsInstallation, cont’d Captive screw connector wiring for inputsOutput connections BNC output connections for Rgbhv and Rgbs videoCabling and RJ-45 connector wiring Ethernet connectionChoosing a network cable Wiring the network cable RJ-45 connector pinout tablesConfiguration RS-232 connectionThree Operationeration, cont’d Front Panel Controls and IndicatorsIntegration Scaling Matrix Switcher Operation Video/Audio selection button and LEDsOutputs buttons and LEDs Input buttons, LEDs, and label windowFront panel input label window Picture adjustment buttons Operation, cont’dBlack/Mute button and LEDs Adjustment knobs LCD displayMenu control buttons Power Front Panel OperationsMenu system overview Extron Electronics ISM 60-425-01 VersionVideo & Audio Configuration menu Input Configuration submenuOutput Configuration menu Output Resolution submenuResolution 50 Hz 56 Hz 60 Hz 75 Hz 85 Hz Lock at 50/60 Hz Sync Type and Polarity submenuAdvanced Configuration menu Video & AudioTest Pattern submenu Blue Only Mode and Edge Smoothing submenuRGB Delay submenu Blanking submenuPAL Film Mode submenu Enhanced Mode submenuPixel Phase submenu Reset submenuUser Presets menu Save Preset submenuErase Preset submenu Exit menuPicture adjustments 13 Picture adjustments flowchartFront panel security lockout executive mode 14 Front panel security lockout flowchartOptimizing the Video IP informationSetting up a DVD source Controls to position the imageTroubleshooting Optimizing the AudioGeneral checks Specific problems Problem CauseOperation, cont’d Four Integration Scaling Matrix Switcher Programmer’s Guide RS-232 LinkEthernet Link Symbols Default addressTies creation Switcher-Initiated MessagesPower-up Input and output video typeX2 Col Programmer’s Guide, cont’d Host-to-Switcher Instructions Switcher error responsesUsing the command/response table Command Ascii Command Response Additional description Horizontal size BrightnessContrast Vertical sizeHorizontal detail filter RGB and component video inputs Pixel phaseBottom blanking Vertical detail filter RGB and component video inputsFreeze User presetsAuto Memories Test patternExecutive mode Verbose modeInformation requests Command/response table for IP SIS commands ResetsCommand/response table for special function SIS commands Delay timesScaler settings Blue screen Enhanced modePAL film mode Edge smoothingCommand Hex Command Response Memory backupAdditional description Five Integration Scaling Matrix Switcher Switcher Software Installing the softwareEthernet protocol settings Control Software for WindowsUsing the control program If you selected a comm port, proceed to stepSwitcher Software, cont’d Windows Control program windowUsing the help program Button-Label GeneratorInstalling the software Using the softwareSix Integration Scaling Matrix Switcher Ethernet Operation EthernetOperation,cont’dLoad the Startup Control Control Control Change the RGB delayEthernet Operation, cont’d Create a tieOutput a test pattern Executive modeFreeze the output Preview the scan rateSystem Configuration System ConfigurationISM IP Address field Administration fieldsISM IP Settings fields ISM Name fieldFile Management File ManagementInput configuration I/O ConfigurationOutput resolution, rate, sync format, and polarity Output resolution Output rateOutput format Output polarityAAppendix a Integration Scaling Matrix Switcher Ethernet Connection Ethernet Connection, cont’dPing to determine the switcher’s IP address Ping to determine the Web IP addressConnect as a Telnet client Telnet tipsOpen Set carriage return-line feed Escape character and Esc keyLocal echo CloseEthernet Connection, cont’d AppendixBB Specifications Integration Scaling Matrix Switcher Reference InformationAudio Reference Information, cont’d Optional accessoriesCables and connectors Part NumbersBNC-5 Mini HR Cable Assorted connectors BNC connectorsBNC-4 Mini HR Cable Plenum BNC-5 Mini HR CableFirmware Upgrade Installation Figure B-1 Removing the ISM cover Button Labels Integration Scaling Matrix Switcher Reference Information Reference Information, cont’d FCC Class B Notice Extron Electronics, USA
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