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Summary of Contents for Lectrosonics UM400
- Page 1 INSTRUCTION MANUAL UM400 Frequency-Agile UHF Belt-Pack Transmitter Featuring Digital Hybrid Wireless Technology ™ (US Patent Pending) Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
- Page 2 UM400 LECTROSONICS, INC.
- Page 3 Level indicating LEDs The design of the UM400 was the direct result of nu- are provided on the control panel to make level settings merous conversations with users, staging and touring quick and accurate, without having to view the receiver.
- Page 4 UM400 LECTROSONICS, INC.
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Page 5: Table Of Contents
Frequency-Agile UHF Belt-Pack Transmitter Table of Contents General Technical Description ................................6 Introduction ......................................6 Digital Hybrid Technology ..................................6 UM400 Block Diagram ..................................6 No Pre-Emphasis/De-Emphasis ................................7 Pilot Tone Squelch ....................................7 Input Limiter ......................................7 Wide-Band Deviation ....................................7 Long Battery life ....................................7 Frequency Agility....................................7 Antenna .........................................7... -
Page 6: General Technical Description
Because it uses an analog FM link, the Digital Hybrid tion of power, bandwidth and resistance to interference. enjoys all the benefits of conventional FM wireless The Lectrosonics Digital Hybrid system overcomes systems, such as excellent range, efficient use of RF channel noise in a dramatically new way, digitally spectrum, and long battery life. -
Page 7: No Pre-Emphasis/De-Emphasis
It can be thought of as two The antenna on the UM400 consists of a flexible 1/4 limiters in series, connected as a fast attack and release wavelength galvanized steel cable, detachable via an limiter followed by a slow attack and release limiter. -
Page 8: Controls And Functions
NOTE: A NiMH battery will give little or no warning when it is depleted. If you wish to use NiMH The input on the UM400 accommodates virtually every batteries in the UM400, we recommend trying fully lavaliere, hand-held or shotgun microphone available. -
Page 9: Modulation Leds
The circuitry is tightly packed into this unit. A longer ously: screw will permanently damage the transmitter! Use only Lectrosonics PN:28528 which is a Phillips head, • Once for 100 Series mode • Two times for 200 Series mode 4-40 x 3/16”, FL100 screw. -
Page 10: Battery Installation
9 Volt battery. It is important that you use ONLY an ALKA- All units with serial number 601 and up are capable of LINE or LITHIUM battery for longest life. Standard zinc- working with Lectrosonics 400 Series Digital Hybrid carbon batteries marked “heavy-duty” or “long-lasting” Wireless , 200 Series analog, 100 Series analog and ™... -
Page 11: Attaching A Microphone And Adjusting Gain
Frequency-Agile UHF Belt-Pack Transmitter Attaching a Microphone and Adjusting Gain Adjusting the Transmitter Frequency 1) Ensure the battery is in good condition. If you are experiencing interference from another signal on your frequency, you may want to change the 2) Insert the microphone plug into the input jack, align- operating frequency of your system. -
Page 12: Microphone Cord Termination
UM400 Microphone Cord Termination Caution: When wiring the connector, do not use the connector body for any electrical connections. A common mistake is to use the connector body as an audio ground. The connector body is already used as an RF ground on VHF models and no other use is permitted. -
Page 13: 5-Pin Input Jack Wiring
If this occurs please call our toll-free number listed on page 15 of this PIN 4 4K Ohm source load for non-Lectrosonics elec- instruction manual. Our service department can answer tret microphones. Use in conjunction with other your questions regarding microphone compatibility. -
Page 14: Line Level Signals
Leaded capacitors: P/N 15117 CONNECTOR Leadless capacitors: P/N SCC330P All Lectrosonics lavaliere mics are already bypassed and do not need any additional capacitors installed for proper operation. Caution: When wiring the connector, do not use the connector body for any electrical connections. -
Page 15: Wiring Hookups For Different Sources
Frequency-Agile UHF Belt-Pack Transmitter Wiring Hookups for Different Sources (See notes on “LINE LEVEL SIGNALS” on p.14) Rio Rancho, NM... -
Page 16: Replacement Parts And Accessories
Item Model/Part Number Replacement wire belt clip Lectrosonics #BCWire Replacment whip antenna Lectrosonics AMM (xx) - specify frequency block (xx) UHF Transmitter Antenna Specifications All Lectrosonic UHF transmitter antennas follow the color code specifications in the chart below to identify operating frequency block range. -
Page 17: Troubleshooting
Frequency-Agile 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 18: Specifications And Features
UM400 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 Block 29: 742.400 - 767.900 Block 30: 768.000 - 793.500 (Export) Block 31: 793.600 - 805.600 (Export) Frequency selection: 256 frequencies in 100kHz steps RF Power output: 100 mW (nominal) Pilot tone: 25 to 32 kHz frequency; 5kHz deviation Frequency stability: ± 0.002% Deviation: ± 75 kHz (max) Spurious radiation: 90 dB below carrier Equivalent input noise: –120 dBV, A-weighted Input level: Nominal 2 mV to 300 mV, before limiting. -
Page 19: 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 20: Limited One Year Warranty
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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