Wheatstone D-8000, Техническое руководство

Страница: 33 / 169

page 3 – 3
D-8000 / Jan 2003
M I C P R E A M P S M O D U L E
Internal Programming Options.
Phantom Power
Two four-position dipswitches SW1 & SW2 turn phantom power on
and off for the module’s eight microphone input ports.
SW1 position 1 activates phantom power for microphone 1
SW1 position 2 activates phantom power for microphone 2
SW1 position 3 activates phantom power for microphone 3
SW1 position 4 activates phantom power for microphone 4
SW2 position 1 activates phantom power for microphone 5
SW2 position 2 activates phantom power for microphone 6
SW2 position 3 activates phantom power for microphone 7
SW2 position 4 activates phantom power for microphone 8
Hook-Ups
As stated before, all user wiring to and from the MP-8 module takes
place at DB-25 multi-pin connectors mounted directly beneath the module
on the console mainframe’s bottom pan. There are two connectors per
module: the upper one (towards the console meterbridge) handles audio
inputs signals; the lower (near the console armrest) audio outputs signals.
A pinout drawing on page 3-5 shows all wiring connections at a glance.
Audio Inputs Connections (upper DB-25)
All signals are analog mono. The mic input level is nominally -50dBu.
Pin 25 – Mic 1 In SH
Pin 24 – Mic 1 In HI
Pin 12 – Mic 1 In LO
Pin 11 – Mic 2 In SH
Pin 10 – Mic 2 In HI
Pin 23 – Mic 2 In LO
Pin 22 – Mic 3 In SH
Pin 21 – Mic 3 In HI
Pin 9 – Mic 3 In LO
Pin 8 – Mic 4 In SH
Pin 7 – Mic 4 In HI
Pin 20 – Mic 4 In LO
Pin 19 – Mic 5 In SH
Pin 18 – Mic 5 In HI
Pin 6 – Mic 5 In LO
Pin 5 – Mic 6 In SH
Pin 4 – Mic 6 In HI
Pin 17 – Mic 6 In LO
Pin 16 – Mic 7 In SH
Pin 15 – Mic 7 In HI
Pin 3 – Mic 7 In LO
Note the factory default
setting for phantom power
is OFF.
Typical DB-25
connector