AudioArts Engineering R-55 - Chapter 3 - Output Module; Module Overview

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R-55 / Mar 2003

OUTPUT MODULE

Output Module

(OM-55)

Module Overview

The master output module handles the console’s Program, Audi-

tion, and Mono/Pre outputs. All outputs are calibrated with recessed

front panel multi-turn trimpots.

Each R-55 console has two pairs of left-right VU meters: PGM and

SWT (switched) located on the console’s meterbridge. The switched

meter follows the SELECT switching, allowing the console operator to

meter PGM, AUD, MONO and PRE, and an external stereo line signal

(analog, +4dBu balanced), which may be brought into the module on

its DB-25 connector.

The OM-55 module houses the master Cue LED. Whenever Cue is

activated anywhere on the console this LED will illuminate and the

CUE signal will automatically appear on the switched VU meter pair.

When cue is de-activated, the switched meter pair goes back to its

previously selected signal.

The CUE master level control sets the level of the console’s cue

signal.

Whenever CUE is activated elsewhere on the console (stereo line inputs

or for studio talkback) its signal will appear at the console’s built-in cue

speaker mounted in the meterbridge. Depending on how the CRS-55

module has been programmed, cue can also interrupt the control room

monitor speakers. The way Cue interrupts the control room/studio outputs is

determined by PCB-mounted dipswitch. See “Cue Interrupt” on 4-3 page.

The OM-55 module also generates the console’s monitor signals,

which feed the Control Room/Studio module.

All user wiring to and from the OM-55 module takes place at

DB-25 and DB-9 multi-pin connectors mounted on top of the module

and located underneath the hinged meterbridge. All analog audio is

+4dBu balanced. Pinout drawings on pages 3-5 show all wiring

connections at a glance.

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