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4.4
CALIBRATION OF
m Make sure the
analog outputs are
Locate the trimpotmeters 3247 and 3248
a Select analog input then apply an analog source of the required level
0 dBFs digital) to the
( f o r
dBu, 1
kHz)
= Connect a suitable analog dB
(L/R)
a Adjust the trimpotmeters so that both
corresponds with the 0 dBFs level as it was defined during the
calibration of the
Figure 4.2: Location of trimpots.
INPUT
THE
calibrated correctly
balanced inputs
to the analog balanced
meter
This is
always between
outputs.
(always between 9 and 15
outputs give the reading t h a t
9 and 15 dBu.
outputs
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