ページ1に含まれる内容の要旨
MLS 304MA, MLS 304SA, MLS 406,
MLS 406MA, MLS 406SA
™
MediaLink Switchers
68-775-01 Rev. C
06 06
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Precautions Safety Instructions • English Warning Power sources • This equipment should be operated only from the power source indicated on the product. This This symbol is intended to alert the user of important operating and maintenance equipment is intended to be used with a main power system with a grounded (neutral) conductor. The (servicing) instructions in the literature provided with the equipment. third (grounding) pin is a safety feature, do not attempt to bypass or disable it. Th
ページ3に含まれる内容の要旨
Quick Start — MLS 304MA, MLS 406, MLS 406MA Step 6 Installation Adjust the audio (sensitivity) level for each input. See Making adjustments on page 3-6. Step 1 Remove power from the switcher and the input, output, and control devices. Step 7 Connect audio devices to the Lineout and Preamp audio outputs Step 2 Install the rubber feet on the bottom corners or • Lineout outputs a fixed, line level audio rack mount the switcher. signal not affected by Volume knob adjustments. Step 3 • Preamp
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Quick Start — MLS 304MA, MLS 406, MLS 406MA, cont’d 4a. Enter setup mode: press and hold an in- Step 8 put button for 3 seconds. The input’s LED Connect all the devices’ power cords, and power blinks. on the system. 4b. Adjust audio levels: while still holding the input button, rotate the Volume knob until the Mid/normal LED lights or blinks. Video Configuration MLS 304MA, MLS 406MA, MLS 304SA, and Step 1 MLS 406SA (amplified models) Via RS-232, configure the MLS: select the video Clip: a
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Table of Contents Chapter 1 • Introducton ............................................................................................................ 1-1 About ths Manual .................................................................................................................... 1-2 About the MLS 304 Seres and the MLS 406 Ser es .............................................. 1-2 Features ........................................................................................
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Table of Contents, cont’d Remote Control .......................................................................................................................... 3-8 Troubleshootng ......................................................................................................................... 3-9 If the image does not appear or there is no sound ............................................................ 3-9 If the switcher does not respond to controls ..........................
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MLS 304 Series and MLS 406 Series Chapter One 1 Introduction About this Manual About the MLS 304 Series and MLS 406 Series Features
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Introduction About this Manual This manual covers the installation, setup, programming, and use of the Extron ™ MLS 304MA, MLS 304SA, MLS 406, MLS 406MA, and MLS 406SA MediaLink switchers. The three models share many features, and instructions apply to all three unless otherwise stated. Throughout the manual these switchers are interchangeably referred to as MLS, MediaLink switcher, and switcher. Procedures or explanations that are model-specific mention the model name (e.g. MLS 406MA).
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MLS 304 Series and MLS 406 Series Chapter Two 2 Installation UL/Safety Requirements Mounting the Switcher Rear Panels and Cabling Application Diagrams
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Installation UL/Safety Requirements The Underwriters Laboratories (UL) requirements listed below pertain to the safe installation and operation of a MediaLink Switcher. Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install
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Mounting the Switcher Tabletop use Each MLS switcher comes with rack mounting brackets and rubber feet. For table- top use, attach a self-adhesive rubber foot to each corner of the bottom of the unit. Rack mounting For rack mounting, do not install the rubber feet. Attach the provided rack mounting brackets to the switcher with machine screws, then fasten the switcher to the rack using the supplied machine screws. Rack Mount MLS 304MA.eps Although it is not required, for the models with a
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Installation Rear Panels and Cabling Power, input, and control connections MLS 304MA and MLS 304 SA Rear Panel 100-240V 50-60Hz AUDIO INPUTS INPUTS OUTPUTS INPUTS AUX/MIX Tx Rx IR 12V 2 R G B 1 3 AUDIO L L ADJUST -42dB A B C TO RS-232/MLC/IR 1 2 +24dB AUDIO LINE LEVEL 4 LINEOUT PREAMP MONO L R L R H R R V VIDEO MONITOR OUT 1.0A MAX. 3a 1 2 4 5 3b 6 100-240V 50-60Hz 4 INPUTS OUTPUTS INPUTS AUX/MIX AUDIO INPUTS Tx Rx IR 12V 2 3 Y R G B 4 1 5 AUDIO L L L ADJUST -42dB A B C TO L R RS-232/MLC/IR 1 2
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L R L R L R L R MLS 406, MLS 406MA, MLS 406SA audio input 4 (captive screw) — This Ö input accepts line level audio signals from consumer and professional audio sources. Consumer devices such as laptops, VCRs, and DVD players typically output an unbalanced -20 dBV to -10 dBV signal. Professional products such as mixers and signal processing gear typically output a balanced +4 dBu level signal. To adjust input levels, see pages 3-5 and 4-10 through 4-11. Wire the 3.5 mm captive screw
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Installation, cont’d Tip (L) For these inputs (excluding input 4 on the Ring (R) MLS 406/MLS 406MA/MLS 406SA), connect the corresponding unbalanced stereo audio signal to the 3.5 mm mini stereo (tip-ring-sleeve) jack. Wire the stereo connectors as shown at right. Sleeve ( ) N After the audio inputs and outputs are 3.5 mm Stereo Plug (unbalanced) connected, adjust the per-input audio sensitivitylevels and optimizeaudio inputand output.See pages 3-5 and 3-6for instru
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DVD Control connection RS-232/MLC/IR control port —You can control the MLS switcher via an f RS-232 connection directly from a host computer, a control system, or a MediaLink Controller (MLC). Alternatively, you can use IR remote control via an Extron IR Link connected to this port. Tx Rx IR 12V Connect a cable between this port and an optional A B C Extron MLC MediaLink Controller or an optional RS-232/MLC/IR IR Link IR signal repeater. • The MLC provides remote control of input
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DVD RS-232_MLC-IR port wiring_MLS304_062404.eps RS-232 MLC/IR RS-232 MLC/IR Tx Rx IR +12V A B C D E Tx Rx IR +12V MediaLink A B C IR Link Switcher port MediaLink Switcher Rear Panel rear panel A B C IR RS-232/MLC/IR port +12 VDC SIGNAL Ground ( ) MLA-Remote C IR (IR Link) D 150 feet (45.7 m) maximum IR Link MediaLink Switcher to an IR Link RS-232 MLC/IR MediaLink RS-232 MLC/IR Tx Rx IR +12V Tx Rx IR +12 V Switcher A B C rear panel MediaLink Switcher Rear Panel RS-232/MLC/IR port A B C NOTE T
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MLS 304MA and MLS 304 SA Rear Panel 100-240V 50-60Hz INPUTS OUTPUTS INPUTS AUX/MIX AUDIO INPUTS Tx Rx IR 12V 2 R G B 1 3 AUDIO L L ADJUST -42dB A B C TO RS-232/MLC/IR 1 2 +24dB LINE LEVEL AUDIO 4 LINEOUT PREAMP MONO L R L R H V R R MONITOR OUT VIDEO 1.0A MAX. 3a 3b 1 2 4 5 6 100-240V 50-60Hz 4 INPUTS OUTPUTS INPUTS AUX/MIX AUDIO INPUTS Tx Rx IR 12V 1 2 3 Y R G B 4 5 AUDIO L L L ADJUST -42dB A B C TO L R RS-232/MLC/IR 1 2 3 +24dB LINE LEVEL AUDIO LINEOUT PREAMP 6 MONO L R L R C H V R R R MONITOR
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L R L R L R L R Installation, cont’d • The Preamp connector outputs a variable, line level audio signal for use with a powered amplifier or self-powered speakers. The volume can be controlled (attenuated) via the front panel knob or RS-232 communication. The volume range is 0 (mute) through 100. Lineout and Preamp outputs can be set up as • unbalanced, -10 dBV (-7.8 dBu, 0.316 Vrms, default) for consumer level devices such as VCRs, DVD players, and stereo receivers or • balanced,
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The MA models’ amplifier power-up delays are approximately • 10 seconds for 70 V or 100 V output, 8 seconds to hear the relay click • 8 seconds for 4 ohm or 8 ohm output Wiring for 4 ohm or 8 ohm speakers (MA models) The maximum poweroutput when an MLS 304MA or MLS406MA iswir ed for4 ohm or 8ohm speakers is20 wattsper channel. 1. Flip the toggle switch down (Direct) to select 4 ohm or 8 ohm connection. 2. Use the appropriate wiring for the load as shown in the fol
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Installation, cont’d Wiring for a 70 volt or 100 volt distributed speaker system (MA models) C The speaker taps should not exceedthe amplifier ’smaximum power output. N Themaximum power output when the MLS iswir edfor 70volt or 100 volt systems is16 watts. 1. Flip the toggle switch up to select a distributed 70 V or 100 V system connection. 2. Use the appropriate wiring for the load as shown in the following illustrations. 70V AMPLIFIED OUTPUT 20 WATTS MONO XFMR 4/8
