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Troubleshooting
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Summary of Contents for Lectrosonics SMDa Series
- Page 1 INSTRUCTION MANUAL SMDa Super Miniature Belt-Pack Transmitters With Digital Hybrid Wireless™ Technology US Patent 7,225,135 SMDa Dual battery, 100 mW RM/E Remote Control Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
- Page 2 SMDa Series LECTROSONICS, INC.
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Page 3: Table Of Contents
LCD Screen ................6 cal of pure digital systems. Power LED ................6 Audio Input Jack..............6 The SMDa Series transmitters use a standard Lec Battery Compartment and Thumb Screw.......6 trosonics 5-pin type input jack for use with electret lava Modulation LEDs..............6 liere mics, dynamic mics, or line level signals. A water Audio Button ................6... -
Page 4: General Technical Description
SMDa Series General Technical Description Wideband Design Lectrosonics Digital Hybrid systems overcome channel Digital Hybrid transmitters use ±50 kHz wide deviation noise in a dramatically new way, digitally encoding the for an excellent signal to noise ratio and wide dynamic audio in the transmitter and decoding it in the receiver, range. -
Page 5: Low Frequency Roll-Off
Compatibility Modes SMDa transmitters were designed to operate with Lectrosonics Digital Hybrid receivers and will yield the best performance when doing so. However, due to the flexibility of digital signal processing, the transmitters can also operate in various compatibility modes for use with IFB. -
Page 6: Controls And Functions
Audio Input Jack Antenna The Servo Bias input on the SMDa Series transmitters accommodates virtually every lavaliere, handheld or The flexible antenna is built with woven, galvanized shotgun microphone available, plus line level signals. -
Page 7: Setup With The Lcd
Use the Up and Down arrow buttons to select the de sired compatibility mode: • Hbr - for all Lectrosonics 400 Series Digital Hybrid Wireless receivers, including the Venue. This mode ™ offers the best audio quality. -
Page 8: Battery Installation
Kevlar covered vent transmitter are to remove the battery or unlock it via the RM remote control. Remote Control Operation SMDa Series transmitters may be configured to respond to signals from the RM remote control unit or to ignore them. -
Page 9: Operating Instructions
Audio Input Jack and the All Digital Hybrid receivers are PWR LED glows green (with good batteries). capable of working with the Lectrosonics SMDa trans Modulation mitters. By selecting the LEDs proper compatibility mode, the SMDa will also work with IFB analog receivers. -
Page 10: Setting Transmitter Operating Frequency
3) Position the microphone in the location where it will tradition of setting the operating frequency using be used in actual operation. two 16-position rotary switches. The SMDa Series 4) Observe the audio level LEDs while speaking or units offer the ability to set the operating frequency singing into the microphone at the same voice level in a similar manner. -
Page 11: Locking Or Unlocking The Control Panel
Super-Minature Belt Pack Transmitters Locking or Unlocking the Control Panel Control Panel Locked The Lock mode protects the transmitter from accidental changes to its settings. 1) Ensure the SMDa setup is complete (operating fre quency, audio level, Compatibility Mode, sensitivity to remote control). -
Page 12: 5-Pin Input Jack Wiring
SMDa Series 5-Pin Input Jack Wiring The wiring diagrams included in this section represent Audio input jack wiring: the basic wiring necessary for the most common types PIN 1 Shield (ground) for positive biased electret lava of microphones and other audio inputs. Some micro... -
Page 13: Microphone Cable Termination For Non-Lectrosonics Microphones
VHF transmitters with 5-pin shield jacks require a different termination. Lectrosonics lavaliere microphones are terminated for compatibility with VHF and UHF transmitters, which is different than what is shown here. Rio Rancho, NM... -
Page 14: Microphone Rf Bypassing
TA5F Alternate locations for bypass capacitors CONNECTOR Install the capacitors as follows: Use 330 pF capaci tors. Capacitors are available from Lectrosonics. Please specify the part number for the desired lead style. Leaded capacitors: P/N 15117 Leadless capacitors: P/N SCC330P... -
Page 15: Wiring Hookups For Different Sources
Sanken COS-11. Simplified wiring for microphones such as negative bias TRAM. This wiring is fully compatible with 5-pin inputs on Lectrosonics transmitters such as the LM and UM Series. This is the wiring NOTE: This servo bias wiring is not compatible with earlier versions of Lectrosonics transmitters. -
Page 16: Rm Remote Control Operating Instructions
SMDa Series RM Remote Control Operating Instructions RM Front Panel Controls A single AA Lithium battery will operate the RM for up to several years. NOTE: Only the specific function displayed is The RM unit gives you remote control of SM Series altered. -
Page 17: Operating Notes
Super-Minature Belt Pack Transmitters Operating Notes • The sensitivity to the remote control varies with the trans mitter’s audio level setting and the microphone used, but it is always possible to make it work with a sufficiently loud remote signal at close range. •... -
Page 18: Troubleshooting
SMDa Series Troubleshooting Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow these steps in the sequence listed. SYMPTOM POSSIBLE CAUSE TRANSMITTER PWR LED OFF 1) Battery is inserted backwards or dead. -
Page 19: Rm Troubleshooting
Super-Minature Belt Pack Transmitters SYMPTOM POSSIBLE CAUSE HISS AND NOISE -- AUDIBLE DROPOUTS 1) Transmitter gain (audio level) far too low. 2) Receiver antenna missing or obstructed. 3) Transmitter antenna broken or missing. 4) Operating range too great. 5) Signal interference. Turn off transmitter. If receiver’s signal strength indicator does not drop to nearly zero, this indicates an interfering signal may be the problem. -
Page 20: Included Accessories
SMDa Series Included Accessories SMDa: SMDBCSL PSMD Leather pouch with Spring-loaded machined 35924 Themal insulated pad installed aluminum clip integrated belt clip on SMDa Place Thermal insulation pad on back of unit, as pictured. Optional Accessories SMKITTA5 SMDBC Connector kit for SMa series... -
Page 21: Specifications And Features
Super-Minature Belt Pack Transmitters Specifications and Features Operating frequencies: Low frequency roll-off: Adjustable from 35 to 150 Hz. Block 470 470.100 - 495.600 Block 19 486.400 - 511.900 Block 20 512.000 - 537.500 Mic in 35 Hz Roll-off Line in Block 21 537.600 - 563.100 Mic in 150 Hz... -
Page 22: Service And Repair
LECTROSONICS’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping. - Page 23 Super-Minature Belt Pack Transmitters Rio Rancho, NM...
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Page 24: Limited One Year Warranty
This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.
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