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14

CHAPTER4

NOTE: 

The Service LED indicates that the 

stage monitor is not commissioned on the 

network and has no effect on the acoustical and/or 
electrical activity of the MJF-212A. The monitor 
must be commissioned on a network using the RMS 
software for the service LED to stop blinking.

When a loudspeaker has been installed on the network, 
the Service LED will be unlit and the Activity LED will flash 
continuously.

NOTE: 

When continuously lit, the Service 

LED indicates that the loudspeaker has had 

a local RMS hardware failure. In this case, the RMS 
communications module may be damaged and you 
should contact Meyer Sound Technical support.

Service button 

Pressing the Service Button will display an icon on the 
corresponding loudspeaker display on the RMS screen. 
When used in combination with the Reset Button, the card 
will be decommissioned from the network and the red 
Service LED will blink. 

wink lED (green) 

When lit, the Wink LED indicates that an ID signal 
has been sent from the host station computer to the 
loudspeaker. This is accomplished using the Wink button 
on the loudspeaker Icon, Meter, or Text views in the RMS 
monitoring program.

Reset button

Pressing the Reset Button will cause the firmware code 
within the RMS card to reboot. However, the commissioning 
state of the card will not change (this is stored in flash 
memory). When used in combination with the Service 
Button, the card will be decommissioned from the network 
and the red Service LED will blink. 

Activity lED (Green) 

When the loudspeaker has been commissioned, the Activity 
LED will flash continuously. When the Activity LED is unlit, 
the loudspeaker has not been installed on the network. 

USER INTERfACE

The RMS software features an intuitive, graphical Windows 
user interface. As mentioned earlier, each loudspeaker 
appears on the computer’s color monitor as a View in 
the form of a status icon, bar graph meter, or text meter 
(numerical values), depending on your preferences.

Each View contains loudspeaker identification information 
and data from the amplifier, controller, drivers, and power 
supply of that particular unit. System status conditions 
cause changes in icon and bar graph indicators, alerting 
the operator to faults or excessive levels. The views are 
moveable and are typically arranged on the screen to reflect 
the physical layout of the loudspeakers. You can design a 
screen “panel” of icons or meters, as shown in Figure 4.4, 
and save it on the computer’s hard drive, with the panel 
conveniently named for a unique arrangement or performer.

If the loudspeaker installation pattern changes completely, 
a new screen panel can be built. If a different subset 
of  installed loudspeakers will be used for a subsequent 
show, only selected loudspeakers need to appear on the 
monitoring screen for that performance.

NOTE: 

For more information on RMS, please 

refer to the RMS User Guide included with 

the software, or visit www.meyersound.com.

Figure 4.4. The RMS user interface

Содержание MJF-212A

Страница 1: ...OPERATING INSTRUCTIONS ULTRAseries MJF 212A High Power Stage Monitor Keep these important operating instructions Check www meyersound com for updates...

Страница 2: ...to 4600 m 15 000ft Non operating altitude to 6300 m 25 000ft Shock 30 g 11 msec half sine on each of 6 sides Vibration 10 Hz to 55 Hz 0 010 peak to peak excursion 2007 Meyer Sound All rights reserved...

Страница 3: ...d by Meyer Sound or sold with the loudspeaker Handles are for carrying only 13 Unplug this loudspeaker during lightning storms or when unused for long periods of time 14 Refer all servicing to qualifi...

Страница 4: ...ages auf ein Minimum zu reduzieren den Lautsprecher vom Stromnetz trennen bevor ggf ein Audio Schnittstellensign alkabel angeschlossen wird Das Netzkabel erst nach Herstellung aller Signalverbindungen...

Страница 5: ...Electrical Safety Issues 8 CHAPTER 3 Amplification and Audio 9 Audio Input 9 Amplification and Protection Circuitry 9 MJF 212A Interconnections 10 Cabling 10 The Limiting System 10 Low Frequency Limi...

Страница 6: ...vi...

Страница 7: ...tory installed VEAM Connector Appendix B Specifications and Dimensional Drawings provides detailed acoustic and electrical specifications for the MJF 212A monitor along with detailed dimensional drawi...

Страница 8: ...INTRODUCTION...

Страница 9: ...m concerts as well as corporate AV applications and clubs The MJF 212A produces a peak output of 139 dB SPL with exceptionally flat phase and frequency response The cabinet is constructed from premium...

Страница 10: ...sing package also incorporates Meyer Sound s Intelligent AC power supply which automatically adjusts for common line voltage worldwide and provides both soft turn on and transient protection The MJF 2...

Страница 11: ...distribution system with the load between loudspeakers distributed among the three phases and all of the loudspeakers connected to common neutral and earth ground points Figure 2 1 A sample AC power...

Страница 12: ...For units shipped with the VEAM all in one multipin connector please refer to Appendix A for AC Power pin out Caution When creating AC cables and distribution systems it is important to preserve AC l...

Страница 13: ...o either low or high voltage its power supply automatically turns on again after three seconds if the voltage has returned to either normal operating window If the MJF 212A stage monitor does not turn...

Страница 14: ...hat the circuit breakers on the monitor s user panel trip the white center buttons pop out disconnect the AC power cable Do not reset the breakers with the AC connected Contact Meyer Sound for repair...

Страница 15: ...loudspeaker If the noise stops most likely the problem is not with the loudspeaker Check the audio cable source and AC power to pinpoint the problem Audio signals can be daisy chained using the Loop o...

Страница 16: ...or s left and right 12 inch cone drivers are powered by separate amplifier channels each with a detector but routed to one limiter The lower limit LED on the user panel indicates limiting activity for...

Страница 17: ...he temperature of the heatsink reaches 75 C 167 F the On Temp LED on the rear panel turns from green On to red Temp The unit continues to operate normally even if the On Temp LED is red but this is an...

Страница 18: ...12 CHAPTER 3...

Страница 19: ...his information is permanently retained on each RMS communication board and in the computer RMS database until you modify it Loudspeaker View labels can be modified at any time allowing you to customi...

Страница 20: ...e Service Button the card will be decommissioned from the network and the red Service LED will blink Activity LED Green When the loudspeaker has been commissioned the Activity LED will flash continuou...

Страница 21: ...neutral blue Figure A 1 VEAM multipin connector power pin out For complete wiring conventions and pin outs for AC audio and RMS connections please refer to the Meyer Sound document VEAM Cable Wiring...

Страница 22: ...16 APPENDIX A...

Страница 23: ...00 Hz Note At this frequency the transducers produce equal sound pressure levels TRANSDUCERS Low low mid frequency Two high power 12 cone drivers with neodymium magnets Nominal impedance 2 Voice coil...

Страница 24: ...W 1 x 275 W 2550 W peak Note Amplifier wattage rating based on the maximum unclipped burst sine wave rms voltage that the amplifier will produce for at least 0 5 seconds into the nominal load impedan...

Страница 25: ...23mm 40 13 70 348mm 23 00 584mm 40 PHYSICAL Enclosure Premium birch plywood Finish Black textured Protective grille Powder coated hex stamped steel black mesh Dimensions 27 07 w x 16 11 h x 23 00 d 68...

Страница 26: ...20 APPENDIX B...

Страница 27: ......

Страница 28: ...2007 Meyer Sound Laboratories Inc 05 157 005 02 A Meyer Sound Laboratories Inc 2832 San Pablo Avenue Berkeley CA 94702 www meyersound com T 1 510 486 1166 F 1 510 486 8356...

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