page 6 – 3
D-75 / Sep 2004
STUDIO CONTROL MODULE
Internal Programming Options
Internal programming for the studio control module is made via printed
circuit board (PCB) mounted dipswitch SW1 located on the top of the
module (beneath the DB-25 connectors). Note when a dipswitch position
is thrown to the right it is ON.
External Talkback Mute/Dim
There is an independent talkback output from the SC-75 module.
A dipswitch setting makes this external talkback output MUTE whenever
the studio is muted. You also have the option of making the output DIM
(drop -20dB in level) instead of MUTE by a second dipswitch setting.
SW1 position 1 mutes external TB whenever Studio is muted*
SW1 position 2 makes external TB DIM instead of MUTE
If position 2 is on the setting of position 1 is ignored.
Studio Dim
Input modules controlling studio microphones can be programmed to
MUTE the studio whenever the module is turned on (i.e., it’s microphone
is live). If you wish, you can have the studio DIM (drop -20dB in level)
instead of MUTE:
SW1 position 3 causes Studio to DIM instead of MUTE
Note the DIM functions do not affect talkback interrupts, which always
completely replace the studio’s regular monitor feed with the console operator’s
TB signal. Note also if a studio is muted, talkback cannot be heard. However, if
a studio is programmed to DIM instead of MUTE, talkback audio could pre-
sumably make it from the studio monitor speakers to the open studio mic.
Studio Pre Mute
The studio pre output can be made to mute whenever a module
programmed for studio mute is turned on. When this is done it overrides
the studio dim function (that is, the main studio out will always mute, never
dim when studio pre mute is activated).
SW1 position 4 causes studio pre to mute
*factory default settings
D-75 / Dec 2008
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