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Lectronics DBu Quick Start Manual

Digital belt pack transmitter
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Q
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S
tart
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Digital Belt Pack Transmitter
DBu, DBu/E01
Fill in for your records:
Serial Number:
Purchase Date:
Digital Hybrid Wireless
This guide is intended to assist
with initial setup and operation of
your Lectrosonics product.
For a detailed user manual, down-
load the most current
version at:
www.lectrosonics.com
US Patent 7,225,135
®
1 September 2022

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Summary of Contents for Lectronics DBu

  • Page 1 Digital Belt Pack Transmitter DBu, DBu/E01 Digital Hybrid Wireless US Patent 7,225,135 ® Fill in for your records: This guide is intended to assist with initial setup and operation of Serial Number: your Lectrosonics product. For a detailed user manual, down-...
  • Page 2 DBu, DBu/E01 Features and Functions Modulation Programmable IR Port Indicators* Function Switch Antenna AUDIO Audio Port Input IR PORT Jack PWR/FUNC Key verification Battery status LED 470.100 Menu navigation buttons Return to previous screen Power button Belt clip Belt clip...

  • Page 3: Belt Clips

    Programmable Switch The transmitter can also be configured as a “one button” device by locking the ability to make changes with the keypad, and configuring the top panel switch as either power on/off or a mute function. Modulation Indicator LEDs When the transmitter is set to MUTE, the -10 Modulation Indicators LED will glow solid red.

  • Page 4: Battery Installation

    Battery Installation The transmitter is powered by two AA batteries. We recommend using alkaline, lithium, or rechargeable batteries for longest life. The battery status circuitry compensates for the difference in voltage drop between alkaline and lithium batteries across their usable life, so it’s important to select the correct battery type in the menu.

  • Page 5: Battery Status Led Indicator

    Contact springs Battery Status LED Indicator Alkaline, lithium or rechargeable batteries can be used to power the transmitter. The type of batteries in use are selectable in a menu on the LCD. When alkaline or lithium batteries are being used, the LED labeled BATT on the keypad glows green when the batteries are good.

  • Page 6: Powering On In Operating Mode

    Operating Instructions Powering On in Operating Mode Press and hold the Power Button for several seconds until a moving bar on the LCD progresses. When you release the but- Hold ton, the unit will be opera- tional with the RF output Rf On turned on and the Main 470.100...

  • Page 7: Lcd Menu Map

    LCD Menu Map Main Menu Tree Select level with arrow buttons G a i n I n p u t G a i n to select. NOTE: The | - 4 0 | - 2 0 + 0 | settings will be Select option with arrow buttons R o l l o f f stored when the...

  • Page 8: Entering The Main Menu

    Main Menu and Setup Screen Details Entering the Main Menu The LCD and keypad interface makes it easy to browse the menus and make the selections for the setup you need. When the unit is powered up in either the operating or the standby mode, press MENU/SEL on the keypad to enter a menu structure on the LCD.
  • Page 9 Menu Item Descriptions Input Gain Gain can be set, from -7 to +44, by using the arrow buttons. Adjusting the Input Gain The two bicolor Modulation LEDs on the top panel provide a visual indi- cation of the audio signal level entering the transmitter. The LEDs will glow either red or green to indicate modulation levels as shown in the following table.

  • Page 10: Setting Frequency

    4) Use the arrow buttons to adjust the gain until the –10 dB glows green and the –20 dB LED starts to flicker red during the loudest peaks in the audio. 5) Once the audio gain has been set, the signal can be sent through the sound system for overall level adjustments, monitor settings, etc.
  • Page 11 Tuning Groups Tuning groups can be received via IR (Infared) port sync from a receiver. The group frequencies are set by the receiver. The group names will be displayed at the bottom of the screen as Grp x, Grp w, Grp v, or Grp u. Use the MENU/SEL button to toggle between options and the arrow buttons to adjust.
  • Page 12 Note: If there is a key mismatch, the key verification LED will blink. WipeKey This menu item is only available if Key Type is set to Standard, Shared or Volatile. Select Yes to wipe the current key and enable the DBu to receive a new key. WipeKey? SendKey This menu item is only available if Key Type is set to Shared.

  • Page 13: Selecting Battery Type

    • Power - turns the power on and off • TalkBk - switches the audio output on the receiver to a different channel for communication with the production crew. Requires a receiver with this function enabled. ProgSw Use the arrow buttons to select the desired Power function or disable...

  • Page 14: Restoring Default Settings

    Gain Locked? A small padlock symbol will appear on adjustment screens when changes have been locked. When settings are locked, several controls and actions can still be used: • Settings can still be unlocked • Menus can still be browsed •...

  • Page 15: Whip Antennas

    Whip Antennas Because the transmitter tunes across such a broad frequency range, it is best to use the appropriate antenna for maximum operation. Two antennas are included with the transmitter, and are shipped from the factory pre-cut and fully assembled. Each antenna covers three blocks. Use the chart below to determine which antenna best fits your needs.

This manual is also suitable for:

Dbu/e01

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