Related Manuals for Lectrosonics UM450
Summary of Contents for Lectrosonics UM450
- Page 1 INSTRUCTION MANUAL UM450 Frequency Synthesized 250 mW UHF Belt-Pack Transmitter Featuring Digital Hybrid Wireless Technology ™ Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
- Page 2 UM450 LECTROSONICS, INC.
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Page 3: Table Of Contents
Microphone RF Bypassing ..................................12 Line Level Signals ....................................Wiring Hookups for Different Sources ...............................13 Works with Servo Inputs Only: ................................13 Compatible with Servo Inputs and other Lectrosonics Transmitters: ....................13 Replacement Parts and Accessories ..............................14 UHF Transmitter Antenna Specifications ............................14 Troubleshooting ....................................15 Specifications and Features ................................17... -
Page 4: General Technical Description
General Technical Description Introduction in the receiver, yet still sending the encoded informa- The UM450 transmitter combines a full 250 mW of tion via an analog FM wireless link. This proprietary RF output with +/- 75 kHz wide deviation for extended algorithm is not a digital implementation of an analog operating range and extremely high signal to noise ratio. -
Page 5: Pilot Tone Squelch
Dry cell Lithium batteries are not recommended for A DSP-controlled analog audio limiter is employed before use in the UM450. This type battery has an upper limit the analog-to-digital (A-D) converter. The limiter has a range on the maximum current it can provide. The UM450 of more than 30 dB for excellent overload protection. -
Page 6: Controls And Functions
The input on the UM450 accommodates virtually every depleted. If you use a NiMH battery in the UM450, lavaliere, hand-held or shotgun microphone available. we recommend trying a fully charged battery in Different line level signals can also be accommodated. -
Page 7: Modulation Leds
Frequency Synthesized UHF Belt-Pack Transmitter Modulation LEDs Adjustable Low Frequency Roll-Off The Modulation LEDs provide a visual indication of the A 18dB per octave low frequency roll-off is provided in input audio signal level from the microphone. These the audio section, with the -3dB point adjustable from two bicolor LEDs can glow either red or green to indi- 35Hz to 150Hz. -
Page 8: Battery Installation
Selecting the Compatibility Mode cover door in the direction of the arrow as shown in the The UM450 can be used with Lectrosonics 400 Series illustration. Only firm, sliding pressure is needed to open Digital Hybrid, 200 Series analog, 100 Series analog and close the battery door. -
Page 9: Attaching A Microphone And Adjusting Gain
To gain access to these switches, slide the access door sideways with a fingernail. -20 dB to -10 dB Green With Lectrosonics 400 Series receivers, a front panel -10 dB to +0 dB Green Green LCD character display will indicate the correct transmit-... -
Page 10: 5-Pin Input Jack Wiring
UM450 5-Pin Input Jack Wiring The wiring diagrams included in this section represent The Audio Input Jack for the UM450 is wired as shown the basic wiring necessary for the most common types below: of microphones and other audio inputs. Some micro-... -
Page 11: Microphone Cord Termination
VHF transmitters with 5-pin shield jacks require a different termination. Lectrosonics lavaliere microphones are terminated for compatibility with VHF and UHF transmitters, which is different than what is shown here. Rio Rancho, NM... -
Page 12: Microphone Rf Bypassing
Capacitors are available from Lectrosonics. Please specify the part number for the desired lead style. Leaded capacitors: P/N 15117 Leadless capacitors: P/N SCC330P All Lectrosonics lavaliere mics are already bypassed and do not need any additional capacitors installed for proper operation. LECTROSONICS, INC. -
Page 13: Wiring Hookups For Different Sources
SOURCE (AUDIO) Sanken COS-11. This wiring is fully compatible with 5-pin inputs on Lectrosonics transmitters such as the LM and UM Series. This is the wiring for the Lectrosonics M152 lavaliere microphone. XLR JACK For low impedance dynamic mics or electret mics with internal battery or power supply. -
Page 14: Replacement Parts And Accessories
Model/Part Number Replacement wire belt clip Lectrosonics #BCWire Replacment whip antenna Lectrosonics AMM (xx) - specify frequency block (xx) UHF Transmitter Antenna Specifications Whip Length Note: Check the scale of your printout. This line should be 6.00 inches long (152.4 mm). -
Page 15: Troubleshooting
Frequency Synthesized 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 Possible Cause TRANSMITTER BATTERY LED OFF 1) Battery is inserted backwards. - Page 16 UM450 LECTROSONICS, INC.
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Page 17: Specifications And Features
Frequency Synthesized UHF Belt-Pack Transmitter Specifications and Features Operating frequencies: Block 470: 470.100 - 495.600 Block 19: 486.400 - 511.900 Block 20: 512.000 - 537.500 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... -
Page 18: Service And Repair
There are no adjustments inside that will make a malfunctioning unit start working. Lectrosonics’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping. - Page 19 Frequency Synthesized UHF Belt-Pack Transmitter Rio Rancho, NM...
- Page 20 This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.
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