StudioTech 233 manual Talkback 1 Button and LED Indicator, Talkback 1 Button Modes

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state when talkback began, once talk- back activity ends that state will resume; the main output will again be in its on (“latched”) state.

Talkback 1 Button and LED Indicator

The button in the center, factory labeled TALKBACK 1, controls the function(s) as- sociated with talkback 1. The manner in which the button functions depends on the way it was configured. An LED indi- cator, green in color, is located directly above the button. It lights whenever talk- back 1 is active. If the talkback 1 function mode has been configured for disabled, it will light only if the auxiliary relay has been assigned to follow the talkback 1 button. If the Model 233 has been selected to the on-air system mode, whenever talkback 1 is active the main output will be placed in the muted state. If the Model 233 is set to the production system mode the status of talkback 1 will not impact the main output.

Talkback 1 Button Modes

Push to talk: If this mode is selected the function(s) associated with the talkback 1 button is normally off. The function(s) will become active whenever the button is pressed and held.

Hybrid: This mode is a combination of push to talk and alternate action. If the button is pressed and held, the function(s) associated with the talkback 1 button will become active until the button is released. If the button is mo- mentarily “tapped” the function(s) will change state. Upon Model 233 power up talkback 1 will be in its off state.

Talkback 2 Button and LED Indicator

The button on the right, factory labeled TALKBACK 2, controls the function(s) associated with talkback 2. The manner in which the button functions depends on

how it was configured. An LED indicator, green in color, is located directly above the button. It lights whenever talkback 2 is active. If the talkback 2 function mode has been configured for disabled, it will light only if the auxiliary relay has been assigned to follow the talkback 2 button. If the Model 233 is selected to the on-air system mode, whenever talkback 2 is ac- tive the main output will be placed in the muted state. If the Model 233 is set to the production system mode the status of talk- back 2 will not impact the main output.

Talkback Output 2 Button Modes

Push to talk: If this mode is selected the function(s) associated with the talkback 2 button is normally off. The function(s) will become active whenever the button is pressed and held.

Hybrid: This mode is a combination of push to talk and alternate action. If the button is pressed and held, the function(s) associated with the talkback 2 button will become active until the button is released. If the button is mo- mentarily “tapped” the function(s) will change state. Upon Model 233 power up talkback 2 will be in its off state.

Headphone Output Level Controls

Three rotary controls (“pots”) are located on the Model 233’s front panel and are associated with the stereo headphone output. The manner in which the controls function depend on the selected con- figuration. The control on the far right is associated with the sidetone function. It’s operation will be discussed in a later section. One configuration parameter sets the control on the far left and the control in the center to operate in a level/level or a level/balance mode. Another parameter allows the left/right assignment of the

Issue 1, September 2007

Model 233 User Guide

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Studio Technologies, Inc.

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Contents User Guide This page intentionally left blank Table of Contents Issue 1, September Model 233 User Guide Introduction What This User Guide CoversSystem Overview Main Output System FeaturesMicrophone Input Talkback FunctionsUser Controls and Status Indicators Dynamic Range ControlFlexibility Cue Sources SidetoneHeadphone Output Audio Quality and Protection Power SourcesIntercom Interface Auxiliary RelayAdditional Connector Locations ConfigurationConnectors Multi-Pin Headset ConnectorsInstallation and Setup OptionsSystem Components Headphone Output Line-Level Talkback Outputs Line Inputs External Power Input Configuration Pushbutton LabelingMicrophone Preamplifier Gain and Phantom Power Microphone Preamplifier GainPhantom Power On/Off Headphone Source SelectionLeft and right channel headphone source selection settings Headphone Output Mode Headphone output mode settingsMain Output Button Mode Operating ModesTalkback 1 Button Mode Talkback 2 Button ModeTalkback 1 Button Function Sidetone Mode Talkback 2 Button FunctionMain Output Source Dual-Channel or Stereo Mode Reverse Left/Right ModeHeadphone Output Operating Modes Minimum Level Mode Main Button ModeRelay Mode System ModeOperation Talkback 1 to Intercom Function ModeTalkback 2 to Intercom Function Mode ConclusionPushbutton Switches and Status LEDs Main Output Button and LED IndicatorsMain Output Button Modes Talkback 1 Button Modes Talkback 1 Button and LED IndicatorTalkback 2 Button and LED Indicator Talkback Output 2 Button ModesLevel/Level Mode Level/Balance ModeMonaural Headphone Output Level Control Operation Sidetone OperationAdjusting the Line Input Trim Pots Advanced OperationIntercom Interface Sidetone Adjustment Technical NotesGrounding and Shielding Intercom Channel Crosstalk Intercom Audio LevelsConnecting an IFB Circuit Phantom Power External Power SourcesSymptoms of Insufficient Power Additional Connectors LED ColorsTravel Case Issue 1, September Model 233 User Guide Pushbutton Backlighting Remote Control/Tally Connections P18Compressor Circuit P19Specifications General AudioAppendix a