Audio Developments AD 245, Manual, Page: 20 / 26

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This module controls the level of main and monitor output signals and metering of the
output and monitor signals (including PFL). Calibration is achieved when the output
faders (3) are at maximum.
The upper meter (1) reads left output, the lower meter (2) right output when switch (7)
is in its L-R position. In MON position the meters read either mono output or monitor
output. This is determined by a set of links on the main printed circuit card of the
output module. The factory setting, with switch (7), set to MON is both meters read
mono output. Refer ADJUSTMENTS & CALIBRATION section for instructions on how
to convert the MON position of switch (7) to enable the meters to read monitor output.
Battery status is read on the upper meter by BATT (5) and the meters may be
illuminated by ILL (6) - overuse of this function will rapidly drain the batteries. When
the internal voltage drops below a safe operating level, the MIX ON indicator LED (4)
will flash.
The main output signal is metered and monitored after the output faders and limiters.
The monitor signal is metered before its level control.
A pair of limiters may be switched in to the main output - LIM (12) - and linked for
stereo operation - LINK (10).
LEDs (11) indicate when limiting is taking place. A
choice of fast or slow attack and release times may be made via the two DIL switches
on the output printed circuit board. When the limiters are being used as a stereo pair,
they should have their attack times and release times set identically.
The factory
setting for the DIL switches is SLOW.
OUTPUT MODULE PRINTED CIRCUIT BOARD