DCD-8 User Manual
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DCD-8 User Manual
• ERROR: Menus Locked Out
Attempt to change a menu setting while menus are locked out (see menu 91)
• ERROR: REF combination (A, B) unavailable
• ERROR: REF combination (alt A, B) unavailable
Domains A & B cannot have dissimilar AES/SPDIF reference combinations (AES
inputs share a single PLL) - (see menus 02 & 22) - The same applies to ALT REF A
(menu 03)
• ERROR: REF B same as REF A
• ERROR: REF B same as ALT REF A
The same source cannot be assigned to Ref B and Ref A (or Alt Ref A). In that
case, Ref B reverts to ‘Use Ref A’.
The following 3 messages are informative messages.
• ERROR: REF Retry failed
Original reference found to be missing during Retry
• INFO: REF Retry required PLL reset
System was not locked when ref Retry requested -- smooth re-lock not attempt-
ed and PLL re-started to guarantee synchronization
• INFO: Saving User Settings
System is in the process of saving user settings following a Save request
The following 3 are also informative. They display if the reference rate (or alt ref
rate) is on LEARN and the incoming rate changes
• INFO “Learned rate change: REF A”
• INFO “Learned rate change: REF B”
• INFO “Learned rate change: ALT REF A”
• Off Speed
This message appears when the reference is detected to be off speed by more
than 1.5%. The main display alternates between the normal LOCKED status and
the Off Speed indication - staying about 2 sec. on each one. When there is only
a single reference (A), the measured reference frequency is shown on the bottom
line, for comparison with the nominal reference rate. For additional information,
go to chapter 11.
The last type of message is more of a warning message and requires user feedback.
• Press ENTER for options
This message appears after a failure of the reference.
To alert the user, it flashes continuously on and off on the bottom line of the LCD
display, along with the REF ERROR LED.
Pressing the [
enter
] key gives several options. To access these options, use the
[
up
] and [
down
] keys.
The options available vary depending on the ALT REF settings (menu 03):
- If an alternate reference had been set and the DCD-8 switched to it:
Retry REF A: to attempt to re-clock to the main reference;
Clear REF ERROR: this option clears the flashing REF ERROR LED and
exits; the DCD-8 stays locked to the alternate reference and the LCD
keeps on flashing the ‘Enter for options’ message, offering only options
1 & 3 this time;
EXIT with no change: exit but leave everything as is.
- If no alternate reference had been set and the DCD-8 is HOLDING:
Clear REF ERROR: this option clears the flashing REF ERROR LED and
exits; the DCD-8 stays in HOLDING mode;
EXIT with no change: exit but leave everything as is.
18.4. DIGITAL AUDIO FORMATS
The following table lists all the digital audio formats accepted by the DCD-8:
Formats
Number of channels
per connector
Connector
Valid Rates
AES Single Wire
2
XLR
44.1-96 KHz
AES Double Wire
1
XLR
176.4-192KHz
AES3id
2
BNC
44.1-192 KHz
S/PDIF Coaxial
2
RCA
44.1-192 KHz
S/PDIF Optical
2
TOS-Link
44.1-96KHz
ADAT Lightpipe
8
TOS-Link
44.1-48KHz
ADAT S/MUX
4
TOS-Link
88.2-96KHz
ADAT S/MUX IV
2
TOS-Link
176.4-192KHz
FireWire
8
1394
44.1-192 KHz
The DCD-8 accepts AES double-wire, ADAT S/MUX and S/MUX IV. The input formats
on the AES, S/PDIF and ADAT connectors will be adjusted based on the REFERENCE;
the output formats will be adjusted based on the RATE.
To run the ADAT input in S/MUX mode, the relevant domain REFERENCE must be forced
into the 96000 range (4 channels) or in the 192000 range (2 channels); to run the
ADAT output in S/MUX mode, the relevant domain RATE must be forced into the 96000
range (4 channels) or in the 192000 range (2 channels).
All AES, S/PDIF and Optical S/PDIF I/O’s run in standard single-wire mode from
44.1k to 96k and in double-wire mode from 176.4k to 192k range.
