Lectrosonics UM190 User Manual

UM190 UHF BELT-PACK TRANSMITTER OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC. Rio Rancho, NM

SPECIFICATIONS AND FEATURES Operating frequencies: 470 to 608 MHz RF Power output: 100 mW (nominal) Frequency stability: ±0.002% Deviation: ±15 k

SERVICE AND REPAIR If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair

LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was p

INTRODUCTION Thank you for selecting the Lectrosonics UM190 belt-pack transmitter. The UM190 combines over 80 years of engineering experience with t

GENERAL TECHNICAL DESCRIPTION The UM190 transmitter is comprised of a number of functional sub-systems as shown in the block diagram below. The 190 s

CONTROLS AND FUNCTIONS LECTROSONICS UM190 ON MUTE OFF LEVEL LIMIT MIC LEVEL LF ROLL-OFF ADJ 30Hz 150Hz Figure 2 - M190 Controls and Functions INPUT

CONTROLS AND FUNCTIONS (cont’d) Since the internal circuits are all tightly regulated and the RF output stage has a separate discrete regulator, the

BATTERY INSTALLATION The transmitter is powered by a standard alkaline 9 Volt battery. It is important that you use ONLY an ALKALINE battery for lon

OPERATING INSTRUCTIONS 1) Install a fresh battery according to the instructions on the previous page. 2) Insert the microphone plug into the input

UM190 INPUT JACK WIRING The wiring diagrams shown on the separate sheet represent the basic wiring necessary for the most common types of microphones

TROUBLESHOOTING Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow t