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- Lectrosonics
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- UR190
- Operating Instructions And Troubleshooting Manual
Lectrosonics UR190 Operating Instructions And Troubleshooting Manual
Summary of UR190
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Ur190 uhf compact receiver operating instructions and trouble-shooting guide lectrosonics, inc. Rio rancho, nm.
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Introduction thank you for selecting the lectrosonics professional series wireless microphone system. This system represents well over 10 years of manufacturing experience in wireless microphones, and almost 70 years of design experience. The ur190 uhf receiver design is the result of surveying the ...
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General technical description a fc 2nd mixer demodulator rf led squelch 0db led -20 led o n off power l e d +9v helical resonator filter ga sfet preamp helical resonator filter double balanced mixer 1st local oscillator ch12 jack +9v reg 1st if amp and crystal filters 2nd local oscillator balanced x...
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The dual band compandor is driven by a multiple pole active low-pass filter. The filter ensures that supersonic noise will not cause the compandor to increase gain incorrectly. This filter also drives the -20db and 0db modulation leds. Traditionally, compandors have been a source of distortion in wi...
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Controls and functions receiver front panel modulation leds indicate the modulation (audio level) of the incoming signal, and can be used for proper adjustment of the transmitter’s "mic level" or "gain". The -20 led glows when the transmitter modulation is at a high enough level to produce a good au...
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Rf led lights when the transmitter is turned on and the receiver has a good signal. When the carrier signal from the transmitter is too weak to produce a clean audio signal, the lamp will go out. Mini phone jack provides a monitor, separate from the rear panel xlr audio output. The output level from...
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Receiver rear panel 12 vdc input connects to the supplied ch-12 ac adapter for powering the receiver from a 110/120v ac source. The receiver may also be powered from external 12 volt dc sources using the correct plug (switchcraft s-760 power plug). A diode bridge is used in the external power input,...
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Antenna use and placement connect the antenna to the front panel jack. Position the antenna so that it is not within 3 or 4 feet of large metal surfaces. If this is not possible, try to position the antenna so that it is as far away from the metal surface as is practical. It is also good to position...
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Operating instructions 1) connect the power cord. 2) attach and extend the antenna. 3) connect the audio cable. 4) set the front panel switch to either "ext" or "int", depending upon the power source. Check to see that the red power led lights up. 5) this is perhaps the most important step in the se...
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Troubleshooting before going through the following chart, be sure that you have a properly connected ac adapter. The power led should glow brightly. Symptom possible cause no power led 1) receiver switch in "off" position 2) external 12 volt power disconnected 3) receiver switch in wrong position fo...
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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 out the inter-connecting cords and then go through the trouble sho...
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Specifications and features operating frequencies: 470mhz to 608mhz, crystal controlled sensitivity: better than 0.35 uv for 20db sinad; 1.5 uv for 50db s/n ratio signal/noise ratio: 106db a-weighted squelch quieting: greater than 106db am rejection: -60db (10uv to 0.1 volts) modulation acceptance: ...
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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 not cover equipment which has been abused or damaged by careless handling or shipping. This warr...