AudioArts Engineering R-55 - Installing the Optional QMP-4 MIC Preamp

page 8 – 7
R-55 / Mar 2003
QUAD MIC PREAMP
Installing the Optional QMP-4 Mic Preamp
The optional QMP-4 comes complete with mounting hardware. The
ribbon cable, installed at the factory to provide power to the pre-installed
QMP-4 card, also includes a second plug (“Connector” on the picture
above) for connecting the optional QMP-4 card. Handle the 10-pin plug on
the ribbon cable assembly with care; the pins are sharp and fragile. Perform
the following steps to install the QMP-4:
• turn off the power to the console;
• swing the meterbridge up and back until it rests in a fully opened
position;
• attach the QMP-4 preamp assembly directly to the right of the factory
installed preamp (located at the lefthand end of the meterbridge), using
four type 4-40x1/4 pan head screws and four nylon standoffs through the
four predrilled holes on the meterbridge rear (“Optional QMP-4 Area” on
the picture above); orient it to match the factory installed QMP-4;
• plug in the ribbon cable connector to the 10-pin boxed header on the
QMP-4 board (CT7);
• connect the required audio wiring to the 12-pin plug terminals on the
QMP-4 card, referring to the “Hook-Ups” chart (see pages 8-3 - 8-5);
• close the meterbridge.
This completes the optional QMP-4 installation procedure.
Connector
Optional
QMP-4 Area