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INTERNAL LINK OPTIONS
The GL4000 is configured to satisfy most applications that should be
encountered. However, the following internal link options are offered for
those applications that may require alternative settings. These options
require access to the internal circuit assemblies and resoldering of circuit
board links. This work should be carried out by technically competent
personnel. Further information is available in the separately available
service manual and from your Allen & Heath agent.
MONO CHANNEL
Set individual aux sends to be
permanently pre-fader or post-
fader rather than switched. Re-
position wire links.
Set the pre-fade aux sends to
be pre-EQ rather than post-EQ.
Re-position a wire link.
Set the pre-fade aux links to be
pre-mute rather than post-mute.
Re-position a wire link.
Disable +48V phantom power
so that the panel switch has no
effect. Cut out the wire link.
STEREO CHANNEL
Set individual aux sends to be
permanently pre-fader or post-
fader rather than switched. Re-
position wire links.
Set the pre-fade aux sends to
be pre-EQ rather than post-EQ.
Re-position 2 wire links.
Set the pre-fade aux links to be
pre-mute rather than post-mute.
Re-position a wire link.
Disable +48V phantom power
so that the panel switch has no
effect. Cut out the wire link.
TALKBACK MIC +48V
Disable +48V phantom power
from the TB mic input XLR.
Remove a jumper link (fit on 1
pin to keep in console).
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