page 7 – 3
D-75 / Sep 2004
SUPERPHONE INPUT
Automatic Features
The channel ON (red) and OFF (amber) switches are at the bottom of
the module. These can be programmed (via internal PCB-mounted
dipswitches) to activate control room and studio mutes, tallies, and timer
restart.
Automatic cue dropout can also be programmed internally (page 7-4),
making it unnecessary to de-activate caller setup buttons before going live;
simply pressing the module’s ON switch will automatically do this for
you.
Inputs and Outputs
All audio and control signals hook-ups are made via two multi-pin
DB-25 connectors mounted at the top of the module and located under-
neath the hinged meterbridge. The left connector handles the remote start
and stop connections, the audio outputs to the caller hybrids, and the
following additional audio outputs:
Composite Out – includes the DJ, callers, and any audio that feeds the
callers, except the TB bus - generally used for recording phone segments
in advance of actual airplay.
Mics Out (also known as Composite Minus Callers) – includes all of
the audio at the Composite Out except the callers.
Callers Only – includes only the callers, with no additional audio.
The right connector handles the caller inputs from the callers and the
external input.
Internal Programming Options
Internal programming is accomplished 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. The SP-75 PCB card contains PCB-mounted trimpots which may
be used to set the module’s output feed levels.
Cue Pre/Post
The module’s CUE signals (caller CUE buttons 1 & 2) can tap pre or
post fader.
SW1 position 2 activates pre-fader cue (default is post)
Mutes
When the SP-75 phone channel ON switch is pressed, it can activate
console mute functions. Dipswitch SW1 determines which of the console’s
two mute lines will be activated:
SW1 position 6 mutes the control room and activates the air tally
when the phone module is ON*
SW1 position 5 mutes studio when the phone module is ON
*factory default settings
D-75 / Mar 2009
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