- DL manuals
- Lectrosonics
- Transmitter
- MM400B
- Instruction Manual
Lectrosonics MM400B Instruction Manual
Summary of MM400B
Page 1
Mm400b watertight miniature uhf belt-pack transmitter featuring digital hybrid wireless ™ technology instruction manual rio rancho, nm, usa www.Lectrosonics.Com fill in for your records: serial number: purchase date:.
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Mm400b lectrosonics, inc. 2.
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Watertight miniature uhf belt-pack transmitter thank you for selecting the lectrosonics mm400b watertight miniature transmitter. The unique design provides several distinct features for professional applications: • outstanding rf operating range • superb audio quality • ultra-lightweight, corrosion ...
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Mm400b lectrosonics, inc. 4.
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Watertight miniature uhf belt-pack transmitter table of contents general technical description .............................................................................................................................................................. 6 general .......................................
Page 6: Mm400B
Mm400b general technical description general the 400 series (or digital hybrid wireless™) system uses 75 khz wide deviation for an extremely high signal to noise ratio. The switching power supplies provide constant voltages to the transmitter circuits from the beginning (1.5 volts) to the end (0.85 ...
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Watertight miniature uhf belt-pack transmitter input limiter the mm400b transmitters employ a digitally-controlled analog audio limiter just before the analog-to-digital converter. The limiter has a range of more than 30 db for excellent overload protection. A dual release envelope makes the limiter...
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Mm400b controls and functions modulation and power leds antenna power on/off switch (external switch magnet housing assembly shown.) battery compartment cap frequency select switchthumbscrew and cover plate audio level control microphone jack preventing internal corrosion it is very important that y...
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Watertight miniature uhf belt-pack transmitter mic jack the mic jack is a 2.5 mm microplug that is wired to accommodate two-wire positive bias lavalieres. While the m152-wp (waterproof) is specifically designed for the mm400b, other two-wire lavaliere microphones can be adapted to the mm440b using t...
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Mm400b the belt clip the belt clip may be removed for special applications by gently spreading the spring wire clip and pulling the ends out of the holes in the case. The clip can be installed in either the up or down position so that when the transmitter is worn, the antenna can be pointing up or d...
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Watertight miniature uhf belt-pack transmitter operating instructions selecting the compatibility mode all digital hybrid receivers are capable of working with lectrosonics mm400b transmitter, and by setting the proper compatibility mode, the unit will also work with 200 series and 100 series analog...
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Power led modulation leds power on/off switch positioning. Antenna connector microphone jack audio level control mm400b note: all 400 series (and a number of earlier receivers) offer a front panel lcds that indicate the correct transmitter switch settings when locating clear channels. Use the scanni...
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Watertight miniature uhf belt-pack transmitter power switch function selection the power on/off switch can also be used as an audio mute switch. When used as an audio mute switch, the power switch causes the transmitter’s audio to be muted when the power on/off switch is placed in the off position. ...
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Mm400b replacing the power switch magnet housing assembly although the power switch’s magnet housing assem bly is designed to provide years of rugged use it may become inadvertently damaged or lost. Use the following procedure to install a new magnet housing assembly. 1) if necessary, use a nonmeta...
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Watertight miniature uhf belt-pack transmitter microphone rf bypassing some mics require rf protection to keep the radio signal from affecting the capsule, even though the transmitter input circuitry is already rf bypassed. If the mic is wired as directed, and you are having difficulty with level, h...
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Mm400b replacement parts and accessories part/model # description 26486 replacement wire belt clip amm (xx) replacement whip antenna, specify frequency block (xx) 21357 non-watertight audio input plug wpmc-3 watertight plug kit - 3 pieces wmpc-10 watertight plug kit - 10 pieces p1201-1 switch magnet...
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Watertight miniature uhf belt-pack transmitter troubleshooting before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow these steps in the sequence listed. Symptom transmitter pwr led off no transmitter modulation leds -10 mod...
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Mm400b specifications and features operating frequencies: block 21 537.600 - 563.100 block 22 563.200 - 588.700 block 23 588.800 - 607.900 and 614.100 - 614.300 block 24 614.400 - 639.900 block 25 640.000 - 665.500 block 26 665.600 - 691.100 block 27 691.200 - 716.700 block 28 716.800 - 742.300 bloc...
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Watertight miniature uhf belt-pack transmitter service and repair if your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnect i...
Page 20: Limited One Year Warranty
Limited one year warranty the equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping. This warr...