Manuel d'utilisation / d'entretien du produit MVX 128 du fabricant Extron electronics
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MVX 128 A VGA Matrix Switcher 68-521-31 Rev . A 01 06.
This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product’ s enclosure that may present a risk of electric shock.
QS-1 MVX 128 A VGA Matrix Switchers • Quick Start PRELIMINAR Y Installation Step 1 T urn of f power to the input and output devices, and remove the power cor ds from them. Step 2 — Inputs a . Connect up to 12 high resolution video inputs to the 15-pin HD input connectors.
MVX 128 A VGA Matrix Switchers • Quick Start QS-2 PRELIMINAR Y Quick Start — MVX 128 A VGA Matrix Switchers, continued RGBHV and Audio buttons select/deselect video and/or audio. The Audio LED blinks to indicate audio breakaway . The Audio button also selects the audio level/adjust mode.
i MVX 128 A VGA Matrix Switchers • T able of Contents PRELIMINAR Y T able of Contents Chapter One • Introduction ...................................................................................................... 1-1 About this Manual .........
T able of Contents, cont’d MVX 128 A VGA Matrix Switchers • T able of Contents ii PRELIMINAR Y Optimizing the Audio ............................................................................................................ 3-35 T r oubleshooting .
PRELIMINAR Y MVX 128 A VGA Matrix Switchers 1 Chapter One Intr oduction About this Manual About the Matrix Switchers Defi nitions Features.
MVX 128 A VGA Matrix Switchers • Introduction 1-2 Intr oduction PRELIMINAR Y About this Manual This manual contains installation, confi guration, and operating information for the Extron MVX 128 A 12-input by 8-output wideband computer video (VGA) and audio matrix switcher .
1-3 MVX 128 A VGA Matrix Switchers • Introduction PRELIMINAR Y The MVX 128 A inputs and outputs VGA video on 15-pin HD connectors and audio on 3.5 mm, 5-pole captive screw terminals. The audio switching can be either linked with the video (audio follow) or be independent of the video (audio breakaway).
Intr oduction, cont’d MVX 128 A VGA Matrix Switchers • Introduction 1-4 PRELIMINAR Y Featur es V ideo — The switcher inputs and outputs RGBHV or RGBS (VGA) video on 15-pin HD connectors. It can also switch RGsB, RsGsBs, component/HDTV , S-video, or composite video.
1-5 MVX 128 A VGA Matrix Switchers • Introduction PRELIMINAR Y Upgradeable fi rmware — The fi rmware that contr ols all switcher operation can be upgraded in the fi eld via RS-232/RS-422, without taking the switcher out of service. Firmware upgrades ar e available for download on the Extron W eb site, www .
Intr oduction, cont’d MVX 128 A VGA Matrix Switchers • Introduction 1-6 PRELIMINAR Y.
PRELIMINAR Y MVX 128 A VGA Matrix Switchers 2 Chapter T wo Installation Mounting the Switcher Cabling and Rear Panel Views.
MVX 128 A VGA Matrix Switchers • Installation 2-2 Installation PRELIMINAR Y Mounting the Switcher The MVX 128 A is housed in a rack-mountable, 2U high metal enclosure with mounting fl anges for standar d 19” racks. If desired, rack mount the switcher as follows: 1 .
2-3 MVX 128 A VGA Matrix Switchers • Installation PRELIMINAR Y Audio connections By default, the audio ties follow the video ties. Audio breakaway , which can be activated via the front panel or und.
Installation, cont’d MVX 128 A VGA Matrix Switchers • Installation 2-4 PRELIMINAR Y d Connections for balanced and unbalanced audio outputs — These 3.5 mm, 5-pole captive screw connectors output the selected unamplifi ed, line level audio. Connect audio devices, such as an audio amplifi er or power ed speakers.
2-5 MVX 128 A VGA Matrix Switchers • Installation PRELIMINAR Y Reset button f Reset button — The Reset button initiates two levels of reset to the matrix switcher . Press and hold the button while the switcher is running or while you power up the switcher for differ ent reset levels.
Installation, cont’d MVX 128 A VGA Matrix Switchers • Installation 2-6 PRELIMINAR Y.
PRELIMINAR Y MVX 128 A VGA Matrix Switchers 3 Chapter Thr ee Operation Front Panel Controls and Indicators Front Panel Operations Rear Panel Controls Optimizing the Audio T roubleshooting Confi gurat.
MVX 128 A VGA Matrix Switchers • Operation 3-2 Operation PRELIMINAR Y Fr ont Panel Controls and Indicators The front panel contr ols (fi gur e 3-1) are grouped into two sets. The input and output buttons are gr ouped on the left side of the control panel.
3-3 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Input and output buttons a Input buttons and LEDs — The input buttons and LEDs have two primary functions (•) and two secondary ( ❏ ) functions: • Select an input. • Identify the selected input.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-4 PRELIMINAR Y Control buttons d Enter button and LED — The Enter button and LED have three primary functions (•) and three secondary ( ❏ ) functions: • Saves changes that you make on the front panel.
3-5 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y f V iew ( < ) button and LED — The V iew ( < ) button and LED have two primary functions (•) and six secondary ( ❏ ) functions: • Selects a V iew-Only mode that displays the current confi guration.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-6 PRELIMINAR Y I/O controls Y ou must specify video, audio, or both when you are cr eating or viewing a confi guration. This is done with the RGBHV button ( h ) and Audio ( i ) buttons.
3-7 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Fr ont Panel Operations The following paragraphs detail the power-up pr ocess and then provide sample procedur es for the following action.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-8 PRELIMINAR Y Creating a confi guration The current confi guration can be changed using the front panel buttons. Change the current confi guration as follows: 1 . Press the Esc button to clear any input LEDs, output LEDs, or contr ol LEDs that are lit.
3-9 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Example 1: Creating a set of video and audio ties In the following example, input 5 is tied to outputs 3, 4, and 8. The steps show the front panel indications that r esult from your actions.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-10 PRELIMINAR Y 4 . Press and r elease the output 3, output 4, and output 8 buttons (fi gure 3-6). N The entire set of ties can be canceled at this point by pr essing and releasing the Esc button.
3-11 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Example 2: Adding a tie to a set of video and audio ties In the following example, a new video tie is added to the current confi guration. The steps show the front panel indications that r esult from your action.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-12 PRELIMINAR Y 5 . Press and r elease the Enter button (fi gure 3-13). ENTER The Enter LED and all input LEDs and output LEDs return to the unlit state. Press the Enter button to confirm the configuration change.
3-13 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Example 3: Removing a tie from a set of video and audio ties In the following example, an existing audio tie is removed fr om the current confi guration. The steps show the fr ont panel indications that result fr om your action.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-14 PRELIMINAR Y 4 . Press and r elease the Output 4 button (fi gure 3-18). ENTER PRESE 1 2 3 4 5 OUTPUTS 6 Press and release the Output 4 button. The LED blinks to indicate that the selected RGBHV output will be untied.
3-15 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Viewing a confi guration The current confi guration can be viewed using the front panel buttons.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-16 PRELIMINAR Y 3 . T o select both video and audio for viewing, if necessary , press and release the RGBHV button and the Audio button (fi gure 3-22). RGBHV AU D I O I/O 1 2 3 4 5 OUTPUTS 6 7 8 Until you select an input, the b uttons for all untied outputs light.
3-17 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y 5 . Press and r elease the RGBHV button to deselect RGBHV (fi gure 3-24). RGBHV AU D I O I/O 2 3 4 5 OUTPUTS 6 7 8 The output buttons f or outputs that are not tied to input 5 are unlit.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-18 PRELIMINAR Y Muting and unmuting video and/or audio Individual outputs can be muted or unmuted as follows: 1 . Press the Esc button to clear any input LEDs, output LEDs, or contr ol LEDs that are lit.
3-19 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y 3 . T o select both video and audio for viewing and muting, if necessary , press and release the RGBHV button and the Audio button (fi gure 3-28). N This example shows the indications that the front panel displays if example 1, example 2, and example 3 have been completed.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-20 PRELIMINAR Y 5 . Press and hold the Output 3 button and the Output 4 button (fi gur e 3-30) for approximately 2 seconds until the LEDs light steadily . The output 3 and output 4 video and audio signals are unmuted.
3-21 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Using global presets The current confi guration (confi guration 0) can be saved as a pr eset in any one of 32 preset memory addr esses. Preset locations ar e assigned to the input buttons and output buttons.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-22 PRELIMINAR Y 2 . Press and hold the Pr eset button for approximately 2 seconds until the Pr eset LED blinks (fi gure 3-34). PRESET PRESET 1 2 3 4 Press and hold the Preset button until the Preset LED blinks.
3-23 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Example 7: Recalling a preset The following steps show an example in which a preset is r ecalled to become the current confi guration. The steps show the front panel indications that result fr om your actions.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-24 PRELIMINAR Y 4 . Press and r elease the Enter button (fi gur e 3-40). The confi guration stored in memory location 13 is now the current confi guration and can be viewed in the V iew-Only mode (see example 4).
3-25 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y 3 . Press and r elease an input button to select an input. The output LEDs display the audio level for the selected input and the Esc ( > ) and V iew ( < ) LED display the polarity (gain [+] or attenuation [–]).
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-26 PRELIMINAR Y Example 10: Viewing and adjusting an input audio level In the following example, an audio level is viewed and adjusted. The steps show the front panel indications that r esult from your action.
3-27 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y 4 . Press and r elease the V iew ( < ) button once (fi gure 3-45) to decr ease the input audio level by 1 dB. Press and r elease the V iew ( < ) button several more times (fi gur e 3-45) to decrease the input audio level by 1 dB per button push.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-28 PRELIMINAR Y Viewing and adjusting the output volume The audio level of each output can be displayed and adjusted through a range of 100% (no attenuation) to 0% (maximum [98 dB] attenuation).
3-29 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Reading the displayed volume N This section is a detailed look at reading the output volume display on the matrix switcher ’ s front panel. If you do not need to read the exact value of the volume setting, skip this section.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-30 PRELIMINAR Y When all input LEDs are lit, the audio output is 100% of the audio input level. Another way to view the volume level is to think in terms of the attenuation that is applied to the output.
3-31 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y 3 . Press and r elease the Output 1 button (fi gure 3-49). 12 1 2 3 4 5 6 INPUTS 7 10 11 12 Press and release the Output 1 button. The LED lights. The input LEDs display the selected output's audio v olume lev el.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-32 PRELIMINAR Y Locking out the front panel ( Executive mode) The front panel lock ( Executive mode) limits the operation of the matrix switcher from the fr ont panel.
3-33 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Selecting the RS-232/RS-422 protocol and baud rate The switcher can support either RS-232 or RS-422 serial communication protocol, and operate at 9600, 19200, 38400, and 1 15200 baud rates.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-34 PRELIMINAR Y 4 . Press and r elease an input or output button to exit the Serial Port Confi guration mode (fi gure 3-56). ENTER PRESET VIEW ESC RGBHV AU D I O CONTROL I/O 5 All Control LEDs return to the unlit state.
3-35 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Performing a hard r eset from the rear panel The hard r eset function restor es the switcher to the original factory default settings. All user fi les and settings ar e maintained. Perform a hard r eset as follows: 1 .
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-36 PRELIMINAR Y T roubleshooting This section gives recommendations on what to do if you have pr oblems operating the switcher and describes an actual image problem that Extr on has encountered.
3-37 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y Worksheet example 2: Daily confi guration Figure 3-60 continues fr om worksheet example 1 by showing the video and audio ties that make up the confi guration of pr eset 1. Solid ink lines show video ties and dashed pencil lines show the audio ties.
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-38 PRELIMINAR Y Worksheet example 3: T est confi guration The A/V system in our fi ctional or ganization needs to be fi ne tuned on a regular basis.
3-39 MVX 128 A VGA Matrix Switchers • Operation PRELIMINAR Y 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 10 11 12 Input sour ces Output destinations Preset # Title: Video: A udio: Fill in the preset number and use colors , or dashes, etc. to make connecting lines .
Operation, cont’d MVX 128 A VGA Matrix Switchers • Operation 3-40 PRELIMINAR Y.
PRELIMINAR Y MVX 128 A VGA Matrix Switchers 4 Chapter Four Pr ogrammer’ s Guide Host-to-Switcher Instructions Switcher-Initiated Messages Switcher Error Responses Using the Command/Response T ables .
MVX 128 A VGA Matrix Switchers • Programmer’ s Guide 4-2 Pr ogrammer’ s Guide PRELIMINAR Y The switcher ’s rear panel Remote 9-pin D female connector (fi gure 4-1) can be connected to the RS-232 or RS-422 serial port output of a host device such as a computer running the HyperT erminal utility , an RS-232 capable PDA, or a control system.
4-3 MVX 128 A VGA Matrix Switchers • Programmer’ s Guide PRELIMINAR Y Out nn Vo l xx ] The switcher initiates the V ol message when a front panel output audio volume change has occurred. “ nn ” is the output number and “ xx ” is the volume level.
Pr ogrammer’ s Guide, cont’d MVX 128 A VGA Matrix Switchers • Programmer’ s Guide 4-4 PRELIMINAR Y Command/Response T able for SIS Commands Symbol defi nitions ] = CR/LF (carriage return/line.
4-5 MVX 128 A VGA Matrix Switchers • Programmer’ s Guide PRELIMINAR Y Command ASCII command (host to switcher) Response (switcher to host) Additional description Create ties N • Commands can be entered back-to-back, with no spaces. For example: 1*1!02*02&003*003%4*8$.
Pr ogrammer’ s Guide, cont’d MVX 128 A VGA Matrix Switchers • Programmer’ s Guide 4-6 PRELIMINAR Y Command/response table for SIS commands (continued) Command ASCII command (host to switcher) Response (switcher to host) Additional description Video mute commands RGB mute X# *1B Vmt X# *1 ] Mute output X# RGB (video off).
4-7 MVX 128 A VGA Matrix Switchers • Programmer’ s Guide PRELIMINAR Y 41 40 38.5% 40% value dB of attenuation Output volume 63 61 62 60 59 57 58 56 55 53 54 52 51 49 50 48 5.5% 8.5% 7% 98 0% 00 10% 11.5% 14.5% 13% 16% 17.5% 20.5% 19% 22% 23.5% 26.
Pr ogrammer’ s Guide, cont’d MVX 128 A VGA Matrix Switchers • Programmer’ s Guide 4-8 PRELIMINAR Y Command/response table for SIS commands (continued) Command ASCII command (host to switcher) .
4-9 MVX 128 A VGA Matrix Switchers • Programmer’ s Guide PRELIMINAR Y Command/response table for SIS commands (continued) Command ASCII command (host to switcher) Response (switcher to host) Additional description Resets Reset global presets and names E ZG } Zpg ] Clear all global presets and their names.
Pr ogrammer’ s Guide, cont’d MVX 128 A VGA Matrix Switchers • Programmer’ s Guide 4-10 PRELIMINAR Y Command/response table for SIS commands (continued) Command ASCII command (host to switcher).
4-11 MVX 128 A VGA Matrix Switchers • Programmer’ s Guide PRELIMINAR Y Command/response table for SIS commands (continued) Command ASCII command (host to switcher) Response (switcher to host) Addi.
Pr ogrammer’ s Guide, cont’d MVX 128 A VGA Matrix Switchers • Programmer’ s Guide 4-12 PRELIMINAR Y.
PRELIMINAR Y MVX 128 A VGA Matrix Switchers 5 Chapter Five Matrix Softwar e Matrix Switchers Control Program Button Label Generator Program.
MVX 128 A VGA Matrix Switchers • Matrix Software 5-2 Matrix Softwar e PRELIMINAR Y T wo software pr ograms accompany the MVX 128 A switcher: • The Extr on Matrix Switcher Control Program, which communicates with the switcher via the RS-232/RS-422 port, provides an easy way to set up ties and sets of ties.
5-3 MVX 128 A VGA Matrix Switchers • Matrix Software PRELIMINAR Y Using the software Many items found in the Matrix Switcher Control Pr ogram are also accessible via front panel contr ols (see chapter 3, Operation ) and under SIS control (see chapter 4, Programmer’ s Guide ).
Matrix Softwar e, cont’d MVX 128 A VGA Matrix Switchers • Matrix Software 5-4 PRELIMINAR Y 3 . The Extron Matrix Switcher Contr ol Program window (fi gure 5-2 and fi gur e 5-3) appears. The window displays the current confi guration of the attached matrix.
5-5 MVX 128 A VGA Matrix Switchers • Matrix Software PRELIMINAR Y • T o set up audio in follow mode (audio and video have the same tie confi guration), select the Follow box at the bottom of the window . T o set up audio in breakaway mode (audio and video have dif ferent tie confi gurations), deselect the Follow box.
Matrix Softwar e, cont’d MVX 128 A VGA Matrix Switchers • Matrix Software 5-6 PRELIMINAR Y 5 . Navigate to the folder where you saved the fi rmware upgrade fi le. Select the fi le. N V alid fi rmware fi les must have the fi le extension .S19.
5-7 MVX 128 A VGA Matrix Switchers • Matrix Software PRELIMINAR Y Windows buttons, drop boxes, and trashcan The buttons, drop boxes, and trash can on the right side of the pr ogram window perform the following functions: Power — Unavailable for MVX 128 A switchers, because the switcher power cannot be controlled via software.
Matrix Softwar e, cont’d MVX 128 A VGA Matrix Switchers • Matrix Software 5-8 PRELIMINAR Y T ools menu Assign device icons — Displays the complete set of input and output device icons. Y ou can drag any of these icons to the input and output boxes.
5-9 MVX 128 A VGA Matrix Switchers • Matrix Software PRELIMINAR Y Name presets — Allows you to assign a name to each of the 32 memory presets. N Preset names ar e limited to 12 upper- and lower-case alphanumeric characters, space, and the _ : = and / characters.
Matrix Softwar e, cont’d MVX 128 A VGA Matrix Switchers • Matrix Software 5-10 PRELIMINAR Y Icons in I/O boxes — Erases any numbers in the I/O boxes in the Control Program window (fi gure 5-3).
PRELIMINAR Y MVX 128 A VGA Matrix Switchers A Appendix A Specifi cations, Part Numbers, Accessories Specifi cations Part Numbers and Accessories Button Labels.
MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories A-2 Specifi cations, Part Numbers, Accessories PRELIMINAR Y Specifi cations Video Routing ........................................... 12 x 8 matrix Gain .................
A-3 MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories PRELIMINAR Y Audio Routing ........................................... 12 x 8 stereo matrix Gain ................................................. Unbalanced output: -6 dB; balanced output 0 dB Frequency r esponse .
Specifi cations, Part Numbers, Accessories, cont’d MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories A-4 PRELIMINAR Y General Power .............................................. 100 V AC to 240 V AC, 50/60 Hz, 30 watts, internal, autoswitchable T emperature/humidity .
A-5 MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories PRELIMINAR Y Part Numbers and Accessories Included parts These items are included in each or der for a MVX 128 A matr.
Specifi cations, Part Numbers, Accessories, cont’d MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories A-6 PRELIMINAR Y Cables Male-to-female VGA molded connector cables Part number VGA 3’ MHR, 3’ (0.9 m) 26-1 12-17 VGA 6’ MHR, 6’ (1.
A-7 MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories PRELIMINAR Y Button Labels Figure A-1 provides 12-button strips of blank button labels. Feel free to photocopy them or cut them out of the manual, write button information in each button area as desired, and put them in the switcher ’s label window .
Specifi cations, Part Numbers, Accessories, cont’d MVX 128 A VGA Matrix Switchers • Specifi cations, Part Numbers, Accessories A-8 PRELIMINAR Y.
FCC Class A Notice Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to pr ovide reasonable protection against harmful interfer ence when the equipment is operated in a commercial environment.
Extron Electr onics, USA 1230 South Lewis Str eet Anaheim, CA 92805 USA 714.491.1500 F ax 714.491.1517 Extron Electr onics, Europe Beeldschermweg 6C 3821 AH Amersfoort The Netherlands +31.33.453.4040 F ax +31.33.453.4050 Extron Electr onics, Asia 135 Joo S eng Road, #04-01 PM Industrial Building Singapore 368363 +65.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Extron electronics MVX 128 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Extron electronics MVX 128 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Extron electronics MVX 128, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Extron electronics MVX 128 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Extron electronics MVX 128, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Extron electronics MVX 128.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Extron electronics MVX 128. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Extron electronics MVX 128 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
