ÿ3ÿwide range limiting ÿ3ÿsurface mount technology h187 plug-on transmitter lectrosonics, inc. Rio rancho, nm www.Lectrosonics.Com operating instructions and trouble-shooting guide.
2 table of contents introduction .................................................................................................. 2 general technical description ............................................................ 3 installation ...............................................................
3 plug-on transmitter rio rancho, nm – usa general technical description the h187 transmitter is comprised of four major functional subsystems: the mic preamp/gain control, the compandor, the compressor/limiter and the rf transmitter (see block diagram below). The mic preamp is an ultra-low noise ty...
4 controls and functions the h187 may be used with a wide variety of microphones. The 3-pin xlr type connector on the h187 allows the transmitter to be used with any dynamic microphone, as well as many two wire positive bias lavalier systems (such as those systems supplied by lectrosonics.) input ja...
5 plug-on transmitter rio rancho, nm – usa modulation leds indicate the proper setting of the mic level control. Level led flickers or glows all the time if the audio volume is adequate for normal operation. Limit led lights up when the audio volume is high, indicating that the signal level is being...
6 operating instructions 1) insert the h187 into the selected microphone. Listen for the “click” that indicates the h187 has locked on to the microphone. Pull on the mic to insure proper locking has occurred. 2) turn the power switch to the “mute” position on both the transmitter and the receiver. T...
7 plug-on transmitter rio rancho, nm – usa battery replacement the h187 transmitter is powered by a standard alkaline 9 volt battery. It is important that you use only an alka- line battery for longest life. Standard zinc-carbon batteries marked “heavy duty” or “long-lasting” are not adequate. They ...
8 troubleshooting before going through the following chart, be sure that you have a good battery in the transmitter the red power led on the transmitter panel should glow brightly. Symptom possible cause transmitter battery led off 1) battery is inserted backwards. 2) battery is dead. No transmitter...
9 plug-on 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 out the intercon- necti...
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...
