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Headphone output level controls – Studio Technologies M233-01151 User Manual

Page 31

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Model 233 User Guide

Issue 5, November 2014

Studio Technologies, Inc.

Page 31

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 or

stadium announce system mode, whenev-

er talkback 2 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 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 configura-

tion. The control on the far right is associat-

ed with the sidetone function. Its operation

will be discussed in a later section. One

configuration parameter sets the controls

on the far left and center to operate in a

level/level or a level/balance mode. An-

other parameter allows the left/right assign-

ment of the controls to be reversed. A third

parameter selects whether the headphone

output channels will maintain a minimum

output level or can be fully muted. In most

cases the headphone output will be con-

figured for stereo, rather than monaural,

operation. The following paragraphs will

describe how these controls will function

in that scenario.
Level/Level Mode
When set to the level/level mode, the

control on the far left and the control in

the center operate independently. Each

control sets the output level of one chan-

nel of the headphone output. If configured

to the normal mode, the control on the far

left is used to adjust the level of the head-

phone output’s left channel. The control in

the center is used to adjust the level of the

right channel. If configured to the reverse

left/right mode, the control on the far left

adjusts the headphone output’s right

channel. The control in the center adjusts

the left channel.
When in the level/level mode, and the

minimum output level is set for –40 dB,

turning each control to its fully counter-

clockwise position will place its respective

output level 40 dB below its maximum.

This setting ensures that talent will never

be fully “isolated” from potentially impor-

tant cue signals. If present on one of the

Model 233’s inputs and assigned to the

headphone channels, some audio signal

will always be present on the headphone

output. If set to the full mute mode, turning

each control to its fully counterclockwise

position will cause its respective output to

fully mute.
The Model 233’s level controls have a

mechanical step (detent) that is located

at the halfway (50%) position of their

rotation range. This is intended to serve

as an aid to Model 233 users. In an ideal

installation, setting the far left and center