Related Manuals for Lectrosonics UM 200C
Summary of Contents for Lectrosonics UM 200C
- Page 1 UM200C FREQUENCY-AGILE UHF BELT-PACK TRANSMITTER OPERATING INSTRUCTIONS LECTROSONICS, INC. Rio Rancho, NM www.lectrosonics.com...
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Page 2: Table Of Contents
5-PIN INPUT JACK WIRING................11 TROUBLESHOOTING ..................14 SPECIFICATIONS AND FEATURES ..............15 SERVICE AND REPAIR ..................16 RETURNING UNITS FOR REPAIR ..............16 WARRANTY ..................Back cover The UM200C transmitter is FCC type accepted under Part 74: 470-608MHz and 614-802MHz LECTROSONICS, INC. -
Page 3: Introduction
Frequency Agile UHF Belt-Pack Transmitter INTRODUCTION Thank you for selecting the Lectrosonics UM200C frequency agile, belt-pack trans- mitter. The UM200C combines over 80 years of engineering experience with the very latest components, in a design that addresses the most demanding professional applications. -
Page 4: General Technical Description
TREBLE HP FILTER SHUNT DELAY LIMITER Vreg +5VDC LIMIT Vreg PEAK AUDIO +3.6VDC INDICATOR & LIMITER DRIVER PHASE LOCKED LOOP COMPANDED PRESCALER AUDIO DIVIDER VOLTAGE LOW PASS CONTROLLED FREQ CIRCULATOR FILTER OSCILLATOR SWITCHES ISOLATOR TRANSMITTER UM200C Block Diagram LECTROSONICS, INC. - Page 5 Frequency Agile UHF Belt-Pack Transmitter NO PRE-EMPHASIS/DE-EMPHASIS The signal to noise ratio of the 200 system is high enough to preclude the need for conventional pre-emphasis (HF boost) in the transmitter and de-emphasis (HF roll off) in the receiver. Pre-emphasis and de-emphasis in an FM radio system usually provides about a 10dB improvement in the signal to noise ratio of the system, but the high frequency boost in the transmitter must be removed in a purely complementary manner or else the frequency response of the original audio signal will be altered.
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Page 6: Controls And Functions
100K is the fine adjustment. Each transmitter is factory aligned at the center of its operating range. The default position of the frequency select switches is in the center of the transmitter’s range. LECTROSONICS, INC. - Page 7 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. Rio Rancho, NM – USA...
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Page 8: Battery Installation
3) Attach the antenna to the SMA connector on the top of the transmitter. 4) Mute the sound system. 5) Turn the transmitter power switch to the “ON” position. 6) Position the microphone in the location you will use in actual operation. LECTROSONICS, INC. -
Page 9: Operating Notes
Frequency Agile UHF Belt-Pack Transmitter 7) While speaking or singing at the same voice level that will actually be used, observe the MODULATION LEDs. Adjust the AUDIO LEVEL control knob until the LEDs begin to light. Start at a low setting where neither LED lights as you speak. -
Page 10: Microphone Cord Termination
The shield wire is the antenna on VHF models and poor operating range will result. Rubber Insulation Crimp Crimp Rubber Tabs Tabs Insulation Shield Wire Note: This termination is required on VHF transmitters and will still work fine on UHF transmitters. LECTROSONICS, INC. -
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 lavalier mics are already bypassed and do not need any additional capacitors installed for proper operation. BODY GROUND 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
Precision compartment auto-adjusts to accept any known alkaline 9 Volt battery. (We’ve tried 125 different ones!) Battery Life: 4.5 hours (alkaline); 14 hours (lithium) Weight: 6.3 ozs. including battery Dimensions: 3.1 x 2.4 x .75 inches Emission Designator: 180KF3E Specifications subject to change without notice. LECTROSONICS, INC. -
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: 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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