Related Manuals for Lectrosonics UM400
Summary of Contents for Lectrosonics UM400
- Page 1 UM400 UM400 UM400 UM400 UM400 FREQUENCY-AGILE UHF BELT-PACK TRANSMITTER (Includes IFB Compatibility Mode) OPERATING INSTRUCTIONS LECTROSONICS, INC. Rio Rancho, NM www.lectrosonics.com...
- Page 2 UM400 The UM400 transmitter is FCC type accepted under Part 74: 536-608 MHz and 614-806 MHz ® LECTROSONICS...
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Page 3: Table Of Contents
80 years of engineering experience with the very latest components, in a design that addresses the most demanding professional applications. The design of the UM400 was the direct result of numerous conversations with users, staging and touring companies and dealers across the US. The specific concerns and needs brought up in these conversations led directly to the development of the operational features offered on the UM400. -
Page 4: General Technical Description
The Lectrosonics Digital Hybrid system overcomes channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded information via an analog FM wireless link. -
Page 5: No Pre-Emphasis/De-Emphasis
RF signal is present on the carrier frequency of the system. The UM400 extends this concept even further by insuring that all transmitters in a system have different pilot tone frequencies so that even spurious RF from the wrong transmitters can’t open the... -
Page 6: Controls And Functions
Note A NiMH battery will give little or no warning when it is depleted. If you wish to use NiMH batteries in the UM400, we recommend trying fully charged batteries in the unit, noting the length of time that the batteries will run the unit and in the future use somewhat less than that time to determine when the battery needs to be replaced. -
Page 7: Modulation Leds
USE ONLY THE SCREW THAT IS SUPPLIED The circuitry is tightly packed into this unit. A longer screw will permanently damage the transmitter! Use only Lectrosonics PN:28528 which is a Phillips head, 4-40 x 3/16", FL100 screw. Belt Clip Belt Clip Retaining Screw Location *Not available on earlier units. -
Page 8: Battery Installation
Do not force the door closed. OPERATING INSTRUCTIONS SELECTING THE COMPATIBILITY MODE All units with serial number 601 and up are capable of working with Lectrosonics 400 Series Digital Hybrid Wire- ™ less , 200 Series analog, 100 Sseries analog and some non-Lectrosonics analog wireless receivers (contact the factory for details). -
Page 9: Attaching A Microphone And Adjusting Gain
Frequency-Agile UHF Belt-Pack Transmitter The –20 and –10 LEDs will blink: • Once for 100 Series mode • Two times for 200 Series mode • Three times for some other receivers • Four times for 400 Series mode • Five times for IFB mode* At powerup the transmitter will confirm the current compatibility mode with the number of blinks listed here. -
Page 10: 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 11: 5-Pin Input Jack Wiring
Low impedance microphone level input for dynamic microphones. Also accepts hand-held electret micro- phones provided the microphone has its own built-in battery. PIN 4 1K Ohm source load for non-Lectrosonics electret microphones. Use in conjunction with other pins to provide attenuation of high level input signals. PIN 5 High impedance, line level input for tape decks, mixer outputs, musical instruments, etc. -
Page 12: Line Level Signals
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. 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. -
Page 13: 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 14: 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... -
Page 15: 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 16: 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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