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- UM400
- Operating Instructions Manual
Lectrosonics UM400 Operating Instructions Manual
Summary of 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
2 um400 lectrosonics ® the um400 transmitter is fcc type accepted under part 74: 536-608 mhz and 614-806 mhz.
Page 3
3 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa table of contents general technical description ........................................................... 4 general ...................................................................................................... 4 digital hybr...
Page 4
4 um400 lectrosonics ® phase locked loop voltage controlled oscillator freq switches 11001001 a-d converter digital signal processor 11001001 d-a converter shunt limiter bicolor modulation leds microprocessor 9v battery switching power supply +3.3v +1.8v +9v -3v hi/lo pass filter audio encoded audio...
Page 5
5 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa no pre-emphasis/de-emphasis the signal to noise ratio of the 400 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-...
Page 6: Controls and Functions
6 um400 lectrosonics ® input jack the input on the um400 accommodates virtually every lavaliere, hand-held or shotgun microphone available. Differ- ent line level signals can also be accommodated. (see line level signals and transmitter 5-pin input jack wiring.) power on/off switch turns the transmi...
Page 7
7 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa belt clip belt clip retaining screw location modulation leds the modulation leds provide a visual indication of the input audio signal level from the microphone. These two bicolor leds can glow either red or green to indicate modulatio...
Page 8: Operating Instructions
8 um400 lectrosonics ® swing the door open press outward on the battery door in this direction 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 sser...
Page 9: Operating Notes
9 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa 0 1 2 3 4 5 6 7 8 9 a b c d e f 0 1 2 3 4 5 6 7 8 9 a b c d e f 1.6m 100k adjusting the transmitter frequency if you are experiencing interference from another signal on your fre- quency, you may want to change the operating frequency ...
Page 10: Microphone Cord Termination
10 um400 lectrosonics ® 1 2 3 4 5 view from solder side of pins 0.3" 0.15" heatshrink tubing ta5f connector assembly mic cord stripping instructions caution! Do not allow the shield wire to touch any metal part of the connector shell. The shield wire is the antenna on vhf models and poor operating r...
Page 11: 5-Pin Input Jack Wiring
11 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa 5-pin input jack wiring the wiring diagrams shown on the next page represent the basic wiring necessary for the most common types of microphones and other audio inputs. Some microphones may require extra jumpers or a slight variation ...
Page 12
12 um400 lectrosonics ® 3 wire mic 2 wire mic capsule capsule shield audio shield audio bias ta5f connector ta5f connector preferred locations for bypass capacitors alternate locations for bypass capacitors pin 5 4 3 2 1 shield audio bias 3 wire electret mic positive bias 1 2 3 4 5 ta5f plug 1 2 3 4...
Page 13: Troubleshooting
13 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa 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 ...
Page 14: Specifications and Features
14 um400 lectrosonics ® 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 2...
Page 15: Service and Repair
15 frequency-agile uhf belt-pack transmitter rio rancho, nm – usa 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 ...
Page 16: Limited One Year Warranty
Lectrosonics, inc. 581 laser road rio rancho, nm 87124 usa www.Lectrosonics.Com july 14, 2004 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 no...