[upload=jpg]Upload/20054271316276056.jpg[/upload]
A-Phase Control Switch & LED - This switch allows the user
to invert the system phasing easily and safely. The switch is set
automatically to the 0° position where the SFD-2 MKII will put
out a normal or non-inverted signal in relation to the signal
being received from the source. Pushing the switch will put out
an inverted version of the signal as compared to that being
received from the source. The LED will light indicating that the
source signal phase is being inverted 180°. This feature offers
a convenient method of correcting source material which was
recorded “out of absolute phase” or to compensate for a component
in your system, such as a preamplifier, power amplifier
or signal connection, which inverts phase.
B-Input Switch & Indicator LEDs - This switch selects
between the 5 digital inputs (I-M) located on the back of the
SFD-2 MKII: AES/EBU XLR, Coax RCA, Coax BNC, Optical
Toslink, Optical Standard (Glass Fibre). A connection to all 5
inputs may be made from 5 separate sources. To switch digital
sources, depress the button repeatedly to scan the inputs. The
LED will light corresponding to the input selection.
C-Sampling Frequency Indicator LEDs - One of these
LEDs will light, indicating the frequency of the digital input signal.
The sampling frequencies are 32K, 44K and 48K.
D-HDCD® LED - This will light when an HDCD (High Definition
Compatible Digital) encoded digital track is being played. The
HDCD decoding is switched in automatically by the SFD--2
MKII circuitry, and no user adjustments are necessary.
E- Signal Locking Indicator LED - This LED will light when
an operational digital source is selected.
NOTE: Depending on the source or transport being used in
conjunction with the SFD-2 MKII, it may be necessary to have
the source unit in the “PLAY” mode and the SFD-2 MKII receiving
the digital transmission before the LED will light.
F- Operate Switch & Power LED - This switch, when
pressed, allows the SFD-2 MKII to receive full power, rendering
the SFD-2 MKII operational as indicated by the Power Indicator
LED. When the switch is off, the Power LED will not be lighted
and the SFD-2 MKII is not receiving full power; under these
conditions the SFD-2 MKII is not operational, but is in standby
mode.
F E D C B A
Figure 1 - Align socket pins to corresponding holes and push together firmly.[upload=jpg]Upload/20054271317377956.jpg[/upload]
G-Detachable Power Cord Socket - Plug the Detachable
Power Cord into this socket (see Figure 1). The SFD-2 MKII is
factory set for the correct operating voltage for the area in
which it is sold (see shipping box for voltage setting). If a different
operating voltage is required, please contact an authorized
Sonic Frontiers dealer, distributor or the factory directly.
H-Digital Out - This output jack provides a digital signal for
dubbing purposes with a Digital Audio Tape (DAT) or
Compact Disc recorder (CD-R).
I- H-P/ST (Glass Fibre) Optical Input - This input will
accept a digital connection from a digital source’s Glass Fibre
Optical digital output. This connection type is considered best for
optimum performance and sound quality; if your source unit has
this type of digital output, we recommend its use.
J- Toslink (Plastic Fibre) Optical Input - This input will
accept a digital connection from a digital source’s Toslink
(Plastic Fibre) Optical digital output.
K-Coaxial BNC Cable Input - This input will accept a digital
connection from a digital source’s BNC - Coaxial digital output.
The BNC - Coaxial cable impedance should be 75 ohms.
L- Coaxial RCA Cable Input - This input will accept a digital
connection from a digital source’s RCA - S/PDIF - Coaxial digital
output. The RCA - S/PDIF - Coaxial cable impedance
should be 75 ohms.
M-AES/EBU XLR Input - This input will accept a digital signal
from a digital source’s AES/EBU XLR digital output. A 110
ohm balanced cable terminated with XLR plugs should be used
for this connection.
NOTE: The XLR jack pin connectors for the SFD-2 MKII are
configured as follows: Pin #1 : Ground
Pin #2 : Positive (+) Phase
Pin #3 : Negative (–) Phase
N- Left and Right Channel Balanced XLR Audio
Output Connectors - These are balanced audio outputs
and should be used when connecting the SFD-2 MKII to the
balanced audio inputs of a line level preamplifier, control
amplifier, integrated amplifier or receiver, if these units are so
equipped (see Figure 4). (Left channel output of the SFD-2 MKII
connects to the left channel input of control unit and right
channel output of the SFD-2 MKII to the right channel input of
control unit.)
NOTE: The XLR jack pin connectors for the SFD-2 MKII are
configured as follows: Pin #1 : Ground
Pin #2 : Positive (+) Phase
Pin #3 : Negative (–) Phase
O-Left and Right Channel RCA Single-Ended Audio
Output Connectors - If the balanced inputs are not applicable
for use, the RCA single-ended (unbalanced) audio outputs
should be used when connecting the SFD-2 MKII to the RCA
single-ended audio inputs of a line level preamplifier, control
amplifier, integrated amplifier or receiver. (Left channel output of
the SFD-2 MKII connects to the left channel input of control unit
and right channel output of the SFD-2 MKII to the right channel
input of control unit.)
INSERTION OF THE TUBES
The SFD-2 MKII comes with two 6922 (6DJ8-type) tubes, individually
boxed and bagged along with a cotton glove, screwdriver,
and screws for fastening the SFD-2 MKII cover. If
desired, replacement of these tubes may be done to suit the listener’s
preference. The following tube types will work under the
same technical parameters as the 6922 and require no circuitry
modification to function:
• 7308/E188CC • 6DJ8/ECC88 • E88CC
Please read and follow these instructions carefully for initial
tube insertion or tube replacement.
1. Be sure that the AC DETACHABLE POWER CORD IS
DISCONNECTED from the SFD-2 MKII before removing the
chassis cover.
2. Using a Phillips screwdriver, remove the cover of the SFD-2
MKII. For convenience, only two of the screws are fastened.
3. When handling the tubes, it is recommended that the cotton
gloves provided be worn to prevent skin oils from depositing
on the glass surface and possibly causing the tube to become
prematurely “gassy”, thereby shortening the tube’s useful operating
life.
4. Take a tube and inspect the pins, noting the larger space
between two of the pins. This space will align with the same
larger space between two of the pin holes on the socket. Insert
the tubes into the tube sockets, making sure all pins and pin
holes are aligned (see Figure 2). Do not force the tube into the
socket. “Rock” the tube gently while pushing slowly until the
tube is firmly seated.
5. Replace the cover and fasten it with the screws provided.
The SFD-2 MKII is now ready for operation.
OPERATION OF THE SFD-2 MKII DIGITAL PROCESSOR
Before plugging in the SFD-2 MKII, check to see that the unit is configured
for the correct AC line voltage for country of use. The operating
AC line voltage is indicated on the side of the shipping box. If
the SFD-2 MKII Digital Processor is set incorrectly for the country in
which it is to be operated, contact the dealer or distributor in your
area. If the unit is configured properly, continue with operation.
Connect the Detachable Power Cord to the SFD-2 MKII chassis (see
Figure 1) and plug your SFD-2 MKII into the AC power source.
Up to five digital sources or cables may be connected to the appropriate
input connectors on the rear panel (I,J,K,L,&M) using an ST
(Glass Fibre) cable, Toslink (Plastic Fibre), BNC Coaxial cable, RCA
Coaxial cable and an AES/EBU XLR cable. If a digital recording
device is being implemented, an RCA Coaxial cable may be used
for this connection from the Digital Out (H) (see Figure 3).
Connect the left and right channel balanced XLR audio outputs (if
the existing amplification system is balanced) or the left and right
channel RCA coaxial (single-ended) into the corresponding left
and right channel line level audio inputs of the system’s preamplifier,
control amplifier, integrated amplifier or receiver (see Figure 4).
