LavryBlue 4496
Operation
13
POLARITY SWITCH-
This switch on the front panel, with positions marked as “Pin 2 +” and “Pin 3 +”
,
provides the ability to
invert the signal polarity
.
When set to “Pin 2 +”, a increasing value (positive slope) of the digital input’s
waveform causes the voltage on Pin 2 of the XLR analog output to increase, and the voltage on Pin 3 to
decrease. The converse is true with the “Pin 3 +” switch setting.
The setting for this switch that matches the factory configuration of the M
AD-824
Analog to Digital
converter is: “
PIN 2 +
”.
Please don’t confuse the function of the polarity switch with the Balanced or Unbalanced configuration of
the Analog Outputs. It is electronically switched before the output stage, so it will not physically change the
connections to the XLR pins.
OUTPUT LEVEL
Individual front-panel
volume control
s (20 turn potentiometers for each channel) provide 24dB’s of
adjustment range for the analog outputs. These are located in the lower left and right corners of the front
panel and are marked “L” and “R.” For balanced outputs, this means a full scale digital signal “0dBFS”can
be set for analog output levels in the range from 0dBu to +24dBu, and for unbalanced operation
“0dBFS”can be set for analog output levels in the range from -6dBu to +18dBu.
B.) M•DA-824 SETTINGS
The M•DA-824 has a number of internal settings, which can be accessed by removing the top cover (please
see “Opening the LavryBlue” Page 20).
