SV Sound SX-VT Manuel D’Utilisation

SX-ST / SX-SV User Manual 

page  25 

The SX-ST/SX-VT mixers feature an advanced Talkback/Slate functionalities. Pressing the Talkback/Slate push 
button located on the upper right corner of the Master & Monitoring module will send either the external 
Communication / Slate microphone signal or the internally generated 1kHz tone to a bus that can be individually 
routed and mixed to any of the Mains and the Auxiliaries outputs.  
For clarity reason we call it the "Talkback bus". The switch position labelled 

←

TBK underneath the Mains and 

Auxiliaries Master Faders refers to this "Talkback bus" ( see section xx ) 
 

NOTE: the Talkback/Slate bus is totally independent of the Communication and Private Line circuitries, 
meanwhile they are using the same external microphone 

This three positions switch selects which of the two possible sources is assigned to the talkback bus: 

MIC position: 

the (external) talkback/slate microphone signal is momentary sent to the talkback bus 
when the TBK/Slate button is depressed 

OSC position:  the internal oscillator generates a 1 kHz sine wave tone which is momentary sent to 

talkback bus when the TBK/Slate button is depressed 

FIX position:  

the 1 kHz sine wave tone is permanently sent to the talkback bus. 

 

(for calibration or test procedures). 

These are new features of the SX-ST/SX-VT series that allow users to configure the functionalities and the 
operating modes of all the P/A push buttons available on the input channels, the Mains and Aux sends. 
 

PFL position: 

P/A buttons are configured for PFL ( Pre Fader Listening ) 

AFL position: 

P/A buttons are configured for AFL ( After Fader Listening ) 

SOLO : 

P/A buttons are configured for SOLO ( true SOLO In Place ) It is used for "soloing" one 
(or more) channel "In Place" of the others. When one or more P/A buttons is depressed, 
all other channels are muted ! Therefore the red Led above the switch starts flashing, 
warning you that the SOLO function is selected. 

Normal : 

This mode is additive, so one or more P/A buttons can be individually activated. 

Reset : 

This will automatically reset and override any previously activated P/A buttons. 

Turns On and Off the internal DC/DC converter that powers the entire mixer. Please refer to chapter 4. 

A 25 pin Sub-D "Return" receptacle is available to connect up to 8 "Return" to the SX-ST / SX-VT mixer. 

It can be used to monitor and/or assign and re-mix the return of a multi-track recorder or any external lines to 
any of the Groups or Auxiliary sends. A row of eight switches is used to individually assign and mix the return 
channels to a stereo "Return" bus:  

Left position: 

assign the track to the left channel of the return mix bus  

Middle OFF position:  the return is not assigned  
Right position: 

assign the track to the right channel of the return mix bus 

 
The switch position labelled 

→

RET underneath the Mains and Aux Master Fader refer to this "Return Bus". 

The rotary potentiometer underneath the switches adjusts the level of the Return Mix bus between –infinite to 
+10dB 

The P/A push button is used to monitor the return tracks Pre- (PFL) or Post- (AFL) the Return Fader depending 
of the P/A mode selector.