Lectrosonics SMDa - Manual (Page 3)

Super-Minature Belt Pack Transmitters
Thank you for selecting a Lectrosonics SM Series
ultra-miniature transmitter. The unique design provides
specialized features for professional applications:
• Outstanding RF operating range
• Superb audio quality
• Ultra-lightweight, corrosion resistant housing
• Water resistant seals for use in damp environments
• Programmable compatibility modes for use with a
wide variety of different receivers
The Digital Hybrid Wireless® design (US Patent
7,225,135) combines 24-bit digital audio with analog
FM resulting in a system that has the same excellent
operating range, spectral efficiency and long battery life
as analog systems, plus the excellent audio fidelity typi­
cal of pure digital systems.
The SMDa Series transmitters use a standard Lec­
trosonics 5-pin type input jack for use with electret lava­
liere mics, dynamic mics, or line level signals. A water
resistant control panel with LCD, membrane switches
and multi-color LEDs make input gain adjustments
and frequency and compatibility mode selection quick
and accurate, without having to view the receiver. The
battery compartment accepts AA lithium or recharge­
able batteries. The housing is machined from a solid
aluminum block to provide an extremely lightweight and
rugged package. A special non-corrosive finish resists
salt water exposure and perspiration in extreme envi­
ronments.
Table of Contents
General Technical Description ...............................................4
Wideband Design...................................................................4
Servo Input.............................................................................4
Digital Hybrid Wireless ® Technology ......................................4
No Pre-Emphasis/De-Emphasis ............................................4
Low Frequency Roll-Off .........................................................5
Input Limiter ...........................................................................5
Signal Encoding and Pilot Tone .............................................5
Microprocessor, PLL and VCO Circuits..................................5
Compatibility Modes...............................................................5
Wide-Band Deviation .............................................................5
Battery Options and Operating Time .....................................5
Frequency Blocks...................................................................5
Circulator/Isolator...................................................................5
Controls and Functions ..........................................................6
LCD Screen ...........................................................................6
Power LED .............................................................................6
Audio Input Jack.....................................................................6
Battery Compartment and Thumb Screw...............................6
Modulation LEDs....................................................................6
Audio Button ..........................................................................6
Freq Button ............................................................................6
Up/Down Arrows ....................................................................6
Antenna..................................................................................6
Setup with the LCD..................................................................7
Audio Screen .........................................................................7
Frequency Screen..................................................................7
Compatibility Mode Screen ....................................................7
Turning the Power On ............................................................7
Turning the Power Off ............................................................7
Entering the Standby Mode ...................................................7
Battery Installation ..................................................................8
Lock/Unlock Screen ...............................................................8
Remote Control Operation .....................................................8
Operating Instructions............................................................9
Power Up and Boot Sequence...............................................9
Power Down...........................................................................9
Standby Mode........................................................................9
Selecting the Compatibility Mode...........................................9
Setting Transmitter Operating Frequency.............................10
Adjusting the Low Frequency Roll-off ..................................10
Attaching a Microphone and Adjusting Gain........................10
Locking or Unlocking the Control Panel ...............................11
Attaching and Removing the Microphone ............................11
5-Pin Input Jack Wiring .........................................................12
Installing the Connector: ......................................................12
Microphone Cable Termination
for Non-Lectrosonics Microphones..............................13
Microphone RF Bypassing...................................................14
Line Level Signals................................................................14
Wiring Hookups for Different Sources ................................15
Compatible Wiring for Servo Bias and Early Inputs .............15
Simple Wiring - Servo Bias Inputs Only ...............................15
RM Remote Control Operating Instructions .......................16
RM Front Panel Controls......................................................16
Powering the RM on and off.................................................16
Principles of Operation.........................................................16
RM Pages ............................................................................16
Operating Notes...................................................................17
RM Quick Reference............................................................17
Troubleshooting.....................................................................18
RM Troubleshooting .............................................................19
Included Accessories............................................................20
Optional Accessories............................................................20
Specifications and Features.................................................21
Service and Repair ................................................................22
Returning Units for Repair ...................................................22
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