StudioTech 233 manual Relay Mode, System Mode

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modes should be considered before a final selection is made. If possible, experi- menting with both modes in a test environ- ment might prove to be very helpful.

Relay Mode

Switch SW4-5 and SW4-6 configure the operating mode of the auxiliary relay.

Figure 19. Auxiliary relay control mode settings

Four modes are available:

Relay disabled: In this mode the relay is disabled and will never change state.

Follows main output status: In this mode the relay will follow the state of the main output. Specifically, the relay will change state (energize) whenever the main out- put is active.

Follows talkback 1 button status: In this mode the relay will follow the state of the talkback 1 button. Specifically, the relay will change state (energize) whenever the button is active.

Follows talkback 2 button status: In this mode the relay will follow the state of the talkback 2 button. Specifically, the relay will change (energize) state whenever the button is active.

System Mode

Switch SW4-8 is used to configure the overall operating mode of the Model 233. Understanding how the two modes impact overall system operation will ensure that correct operation and maximum usabil- ity will occur. When selected to the on-air mode, the main output will mute whenever a talkback function is active. The LED indi- cators associated with the main output will light accordingly. The on-air mode should be selected for all on-air broadcast applica- tions. It’s imperative that the main output be muted whenever on-air talent is using one of the talkback functions to communi- cate with production personnel.

When configured for the production mode, the main output is never muted in response to a talkback function being active. The main output will be controlled only by the main output pushbutton. This mode allows the main output to be used, for example, as an additional talkback output. In this way, the main output and talkback out- put functions can be used independently with neither impacting the other. This also allows all three buttons to be used simul- taneously. Note that as is always the case the audio source for the main output is, depending on its configuration, either the output of the microphone preamplifier or the output of the compressor.

In summary, when selected for the correct application, both the system modes can prove equally effective. A thorough study

Figure 20. System mode settings

Model 233 User Guide

Issue 1, September 2007

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 Talkback Functions System FeaturesMicrophone Input Main OutputUser Controls and Status Indicators Dynamic Range ControlFlexibility Sidetone Cue SourcesHeadphone Output Auxiliary Relay Power SourcesIntercom Interface Audio Quality and ProtectionMulti-Pin Headset Connectors ConfigurationConnectors Additional Connector LocationsInstallation and Setup OptionsSystem Components Headphone Output Line-Level Talkback Outputs Line Inputs External Power Input Pushbutton Labeling ConfigurationMicrophone Preamplifier Gain Microphone Preamplifier Gain and Phantom PowerHeadphone Source Selection Phantom Power On/OffLeft and right channel headphone source selection settings Headphone output mode settings Headphone Output ModeOperating Modes Main Output Button ModeTalkback 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 Main Button Mode Minimum Level ModeSystem Mode Relay ModeConclusion Talkback 1 to Intercom Function ModeTalkback 2 to Intercom Function Mode OperationPushbutton Switches and Status LEDs Main Output Button and LED IndicatorsMain Output Button Modes Talkback Output 2 Button Modes Talkback 1 Button and LED IndicatorTalkback 2 Button and LED Indicator Talkback 1 Button ModesLevel/Balance Mode Level/Level ModeSidetone Operation Monaural Headphone Output Level Control OperationAdvanced Operation Adjusting the Line Input Trim PotsIntercom Interface Sidetone Adjustment Technical NotesGrounding and Shielding Intercom Audio Levels Intercom Channel CrosstalkConnecting an IFB Circuit External Power Sources Phantom PowerSymptoms of Insufficient Power Additional Connectors LED ColorsTravel Case Issue 1, September Model 233 User Guide Pushbutton Backlighting P18 Remote Control/Tally ConnectionsP19 Compressor CircuitGeneral Audio SpecificationsAppendix a