Lake People ADC C440 User Manual - page 11
11
THE INTERNAL SYNC-SOURCE
Pushing the “INT” button on the frontpanel
activates the internal oscillator and the yellow
“INT” LED is lit. Repeatedly pushing this button
activates in a cyclic way:
- the internal frequency 44.1 kHz
- the internal frequency 48 kHz
- the internal frequency 96 kHz
and the corresponding yellow LED of the fre-
quency display is lit. Because its structure this
signal is always valid, so the green “LOCK”
LED is lit.
THE OUTPUT FORMAT
IThe digital output format may be switched to
professional or consumer format by means of
the “FORMAT” button.
-
The unit is set to consumer mode when
the yellow “CON” LED is lit. The ADC´s
digital outputs are set to consumer format.
- The unit is set to professional mode when
the yellow “PRO” LED is lit. The ADC´s
digital outputs are set to professional
format.
THE ANALOG INPUTS
The analog inputs are situated on the rear
panel and equipped with balanced XLR con-
nectors. XLR pinout corresponds to AES 14-
1992 recommendations:
1 = Ground, 2 = (+) Phase, 3 = (-) Phase
Input impedance is 5 kOhms, while input
sensitivity for digital full scale can be calibrated
individually for both channels within a range of
+2 ... +25 dBu approximately.
HINT:
To feed unbalanced signals in a proper way,
pin 3 of the XLR connectors must be tied to
ground.
INPUT POTENTIOMETERS
By means of two independent gain pots for left
and right channel, input sensitivity can be set
individually. Input level may vary between +2
... +25 dBu for digital full scale.
THE OPERATION
THE OPERATION