Bosch LBB 1920 Manuals

Table of Contents

• • 3

    Important Safeguards
  • 4

    About This Manual
  • 4

    Safety Precautions
  • 5

    Table of Contents

• 7

  1 About the Equipment

  • 8

    Controls and Connections (Front)
  • 8

    Controls and Connections (Rear)

• 9

  2 Internal Settings

  • 9

    Priority Mode Setting
  • 9

    Channel Settings
    • 9

      Microphone or Line Input
    • 9

      MIC/Aux Input Selection
    • 9

      Speech Filter On/Off
  • 10

    Setting Emergency, Insertion or Cascade

• 11

  3 Installation in Rack

• 12

  4 External Settings and Connections

  • 12

    Connect the DC Supply (Battery)
  • 13

    Connect a Microphone or Line-Level Source
  • 14

    Insertion or Cascade Connection
  • 14

    Connect a Booster Amplifier or System Pre-Amplifier
  • 15

    Connect an Emergency Input Line

• 16

  5 Operation

  • 16

    Set Line Input Volume, Treble and Bass
  • 16

    Line Monitoring

• 17

  6 Technical Data

  • 17

    Electrical
  • 17

    Performance
  • 17

    Inputs
  • 18

    Outputs
  • 18

    Interconnection
  • 18

    Relays
  • 18

    Environmental Conditions
  • 18

    General