6978 Communications module 7-25
Revision J2005-2 J-Type
:1715 &RPPV#4#3KDQWRP#SRZHU#2122))
Press this button to put phantom power on the input connector.
:1716 &RPPV#4#,QSXW#*DLQ
This potentiometer is used to set the gain of the input amplifier. The gain is continu-
ously variable from 10dB to 60dB.
:1717 &RPPV#4#$OO#6XE#*URXSV#5RXWLQJ#VZLWFK
Single switch that routes the comms section input signal to all 16 Sub Groups.
:1718 &RPPV#4#$OO#6XE#*URXSV#5RXWLQJ#/HYHO#FRQWURO
Single potentiometer for controlling the relative level of the comms section input sig-
nal that is sent to all 16 sub groups. This is a ‘pre-set’ control and is designed to be
adjusted using a screwdriver.
:1719 &RPPV#4#$X[#*URXS#URXWLQJ#VZLWFKHV
Twelve separate switches for routing the comms section input signal to any of the
Aux groups.
:171: &RPPV#4#$X[#*URXS#5RXWLQJ#/H YHO#FRQWUROV
Six potentiometers for controlling the relative level of the comms section input signal
that is sent to odd and even pairs of Aux busses. These are ‘pre-set’ controls and are
designed to be adjusted using a screwdriver.
:171; &RPPV#4#3)/
A PFL switch is included in each communications channel to allow instantaneous
monitoring of the input signal.
:171< &RPPV#4#087(
The MUTE switch is provided so that the Comms section can be turned ‘off’ when
not required, or the channel is being used in conjunction with the talkback switch
(Comms 3 only).
:17143 7 DONEDFN#VZLWFK
The Talkback switch overrides the Comms section Mute relay.
When you want to use the Comms 3 section in Talkback mode, the procedure is as
follows:
(a) Set up the required routing and adjust the input and output levels.
(b) Press the Comms 3 Mute switch so that no output is being sent.
:17144 &RPPV#5#DQG#6
See 7.4.1 to 7.4.9
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