User's Manual

LMb
LECTROSONICS, INC.
2
Table of Contents
Introduction .............................................................................3
About Digital Hybrid Wireless ...............................................3
Frequency Agility...................................................................3
Wide-Band Deviation ............................................................3
Servo Bias Input and Wiring .................................................3
LMb Block Diagram ...............................................................4
DSP-controlled Input Limiter .................................................4
No Pre-Emphasis/De-Emphasis ...........................................4
Pilot Tone Squelch ................................................................4
Battery Installation .................................................................5
Belt Clips .................................................................................5
Operating Instructions ...........................................................6
Battery Status LED Indicators ...............................................6
Powering On in Operating Mode ...........................................6
Powering On in Standby Mode .............................................7
Powering Off .........................................................................7
Navigating Menus .................................................................7
Locking/Unlocking Changes to Settings................................7
Power Menu ..........................................................................7
Selecting Programmable Switch Functions...........................8
Main Window Indicators ........................................................8
IR (infrared) Sync ..................................................................9
Selecting the Compatibility (Compat) Mode ..........................9
Connecting the Signal Source ..............................................9
Adjusting the Input Gain ........................................................9
Selecting Step Size .............................................................10
Selecting Frequency ...........................................................10
Selecting Frequency Using Two Buttons .............................10
Helpful Features on Receivers ............................................10
About Overlapping Frequency Blocks .................................11
Selecting Audio Polarity (Phase) .........................................11
Adjusting LCD Backlight .....................................................11
RF ON/OFF on the Menu ....................................................11
Selecting Battery Type ........................................................11
Restoring Default Settings ..................................................11
5-Pin Input Jack Wiring ........................................................12
Microphone Cable Termination
for Non-Lectrosonics Microphones .............................13
Input Jack Wiring for Different Sources .............................14
Compatible Wiring for Both Servo Bias Inputs
and Earlier Transmitters: .....................................................14
Simple Wiring - Can ONLY be used
with Servo Bias Inputs:........................................................14
Microphone RF Bypassing ..................................................15
Line Level Signals ...............................................................15
Wiring Diagram for MI39A Instrument Cable ......................15
Accessories ..........................................................................16
Troubleshooting ....................................................................17
Specifications and Features ................................................18
Service and Repair ...............................................................19
Returning Units for Repair ..................................................19
Consumer Alert for US Users - FCC Order DA 10-92
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this micro-
phone system without a license is subject to certain restrictions: the system may not cause harmful interference; it
must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received
from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless mi-
crophone systems, and these rules are subject to change. For more information, call the FCC at 1-888- CALL-FCC
(TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at www.fcc.gov/cgb/wirelessmicrophones.
To operate wireless microphone systems at power greater than 50mW, you must qualify as a Part 74 user and be
licensed. If you qualify and wish to apply for a license go to: http://www.fcc.gov/Forms/Form601/601.html