44.
MIX INSERTS
These are similar to the Input Channel Inserts and al-
low external processing equipment to be inserted into
the output signal path. The
1
⁄
4
" 3 pole A gauge jack
sockets are by-passed except when a plug is inserted.
45.
BARGRAPH METERS
Two 16-segment, three colour bargraph meters provide
visual monitoring of Mix L & R output levels. These are
factory set to a PEAK characteristic, but may be
changed internally to a VU characteristic. Please refer
to the Selectable Options section (Page 31) for details.
Normally the meters display Left and Right signals. If
any PFL or AFL switch is activated the left meter is
turned off and the right meter displays the selected PFL
or AFL signal.
The bargraphs may be calibrated by trimmers fitted on
the edge of the PCBs and accessed via holes in the
panel above each meter. Adjustments may be made
using a small screwdriver, taking care not to damage
the trimmers.
46.
MIX MASTER FADERS
Master Faders for the Left and Right Mix outputs. Unity
gain is at the top of their travel.
47. OSCILLATOR
The dual frequency Oscillator is simultaneously turned
on and routed to the 8 Groups and the stereo Mix bus-
ses by the TAPE switch.
A second switch selects output frequency to either
1kHz (Up) or 10kHz (down). Level is determined by
the rotary control.
48.
FOLDBACK MASTER FADERS
Rotary master faders drive the FB1 and FB2 outputs
via ground- compensated amplifiers. Each Foldback
output has an associated AFL switch, sampling the sig-
nal after the fader.
Page 20
