SDC2000
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User Manual
Rev. 1.0 - 12/04/05
6. Quick Reference - Installation and use
This section contains the necessary information for installing and using the machine.
In the event that any aspects are not completely clear, for example when using the
machine for the first time, we recommend you carefully read the entire description
contained in this manual.
6.1
Preparation
Unpack the SDC2000 and before doing any operation, be sure it has not been
damaged during transport. In particular check that all connectors are in perfect
condition.
Check that the voltage selected coincide with mains voltage. The protection fuses
can be accessed from the outside on the rear panel. Extract the fuse carrier with a
screwdriver to check its integrity or for replacement, if necessary.
The voltage selection block accommodates two line fuses. The following type of fuse
is used:
2x A.C. LINE FUSE
315mA 250V (5X20)
6.2
Installation
The SDC2000 accepts AES/EBU digital inputs or Left and Right analogue inputs
converted into digital format (A/D).
The SDC2000 generates the MPX stereo audio signal directly in digital form, starting
from the Left and Right digital channels; this ensures:
– Clean, high-fidelity stereophonic signal
– High stereophonic separation throughout the band
In SDC2000, the RDS signal is generated by the DSP (Digital Signal Processor)
and digitally added to the stereophonic audio signal; in the analogue version, the
RDS signal (modulated subcarrier) is generated by an external equipment and mixed
with the MPX signal.
The MPX + RDS signal is converted into an analogue signal (D/A) and used in the
direct modulation of the RF carrier through an analogue VCO/PLL, that offers excellent
S/N levels and stability and avoids spurious output, which is typically associated with
current DDS modulation schemes.
