dCS Delius User Manual Manual for Software Issue 2.3x
dCS Ltd September 2004
Manual filename: Delius Manual v2.3x.doc Page 69 email: more@dcsltd.co.uk
English version web-site: www.dcsltd.co.uk
Troubleshooting the IEEE 1394 Interface
This section covers difficulties that may be encountered using a dCS Verdi
SACD Transport (v1.20 or later), a dCS Verdi La Scala Upsampling SACD
Transport or a dCS Purcell Upsampler to drive a dCS Elgar Plus DAC (v4.20 or
later) or Delius DAC (v2.20 or later) with DSD data over an IEEE 1394 interface.
Upsampler or Transport displays “Inactive”
• This can happen momentarily during locking. If it does not change to
Active, open the Transport or Upsampler’s menu and ensure the Transmit
page is set to Active.
The Unit keeps displaying “No Comms”
• This will appear briefly while the 1394 system is checking for connections.
• If the No Comms message does not clear, ensure that all units in the 1394
chain are switched on and securely connected by 1394 cables.
The Unit keeps displaying “Search..”
• This will appear briefly after the 1394 system has established
communications.
• If the Search message does not clear, ensure that you have not connected
both 1394 connectors from one unit to both 1394 connectors on another unit
or set up a loop. This prevents the 1394 bus settling.
• Check that the 1394 cables are correctly fitted.
The DAC displays “Verdi Wordclock Missing”
• With the DAC in slave mode, check there is an undamaged BNC cable
connecting Verdi’s WClk Out to the DAC’s WClk In.
• Ensure the cable is D.C. coupled. A.C. coupled cables are not suitable for
use with Wordclock or SDIF.
The DAC displays “Missing Wordclock between Clk Out & Verdi Clk In”
• With the DAC in master mode, check there is an undamaged BNC cable
connecting the DAC’s WClk Out to Verdi’s WClk In.
• Ensure the cable is D.C. coupled. A.C. coupled cables are not suitable for
use with Wordclock or SDIF.
The DAC displays “Please check source slaved to DAC Wordclock Out”
• With the DAC in master mode, check there is an undamaged BNC cable
connecting the DAC’s WClk Out to the source’s WClk In.
• Ensure the cable is D.C. coupled. A.C. coupled cables are not suitable for
use with Wordclock or SDIF.
The DAC displays “Wrong Wordclock @ Verdi Clk In”
• Verdi / La Scala has detected a clock frequency other than 44.1kHz on it’s
WClk In connector. Ensure the clock source is set to 44.1kHz.
• With the DAC in master mode, check there is an undamaged BNC cable
connecting Verdi / La Scala’s WClk Out to the DAC’s WClk In.
• Ensure the cable is D.C. coupled. A.C. coupled cables are not suitable for
use with Wordclock or SDIF.
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