Recording Equipment

1220 MIXING CONSOLE

Page 2 (Contents)

Altec 1220 MIXING CONSOLE - Contents

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Table of Contents

Contents2
Controls, Connections and Features5
Channel Input/Output Connections and Features8
Main Outputs and Features9
Special Data on Stereo Jacks9
Primary Power Control and Features10
Operation11
Portable Travel Case11
Control and Indicators11
General Setup Procedure11
Recommended Mixing Procedure13
Use of Peak Limiter15
Console Paging Microphone/Bypass16
Auxiliary Input Via EXT REVERB in Jack16
Submixing on Reverb Channel16
Connecting 1220 Console for Multiple Operation16
Signal Flow17
Input Channels17
Main Channel17
Electronic Crossover Output Circuit17
Conversion of 1220 Console to 240 VAC, 50/60 Hz Operation18
Auxiliary Input Channel18
Reverb Circuit18
Peak-Limiting Circuit18
Schematic Diagram19
Component Replacement Procedures21
Rear Access to Chassis Interior21
Replacement of VU Meters or Meter Light Bulbs21
Replacement of Channel Modules and Master Control Module21

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