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dCS Scarlatti Clock

Digital Audio Master Clock

User Manual

Software Release 1.0x

June 2008

 

 

 

 

 

 

 

 

 

 

 

 

© Data Conversion Systems Ltd. 2007-8

 

Price UK £8.00 / Euro 12.00

 

All rights reserved. No part of this publication may be reproduced, stored in or introduced into a retrieval system, 
or transmitted in any form, or by any means (electronic, mechanical, photocopying, recording or otherwise) 
without the prior written permission of 

dCS

1

. Any person who does any unauthorised act in relation to this 

publication may be liable to criminal prosecution and civil claims for damages.

 

Information contained in this manual is subject to change without notice, and whilst it is checked for accuracy, no 
liabilities can be accepted for errors. 

                                                      

1

  

dCS

 is Data Conversion Systems Ltd. Company registered in England No. 2072115. 

Summary of Contents for none

Page 1: ...m or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of dCS1 Any person who does any unauthorised act in relation to this publication may be liable to criminal prosecution and civil claims for damages Information contained in this manual is subject to change without notice and whilst it is checked for accuracy no liabilities can be accept...

Page 2: ...dCS Scarlatti Clock User Manual Software Issue 1 0x June 2008 Filename Scarlatti Clock Manual v1_0x doc Page 2 English version ...

Page 3: ... 6 Connecting the system for DSD 7 Connecting the system for Dual AES 8 Using an External Reference 8 Front Panel 9 POWER Button 9 DISPLAY Button 9 DITHER Button 9 Display 10 FREQUENCY Button 10 MENU Button 10 Remote Control Receiver 10 Rear Panel 11 Word Clock Outputs 11 Ref Input 11 1394 Interface 11 SUC Connector 11 Mains inlet 11 The Menu 12 Using the Menu 13 INFORMATION Menu 14 CLOCK SETTINGS...

Page 4: ... co uk The Scarlatti Transport is supplied with a programmed Philips Pronto remote control If you do not have a Scarlatti Transport in your system a programmed Pronto can be ordered direct from dCS as an optional extra Safety Notice Your dCS Scarlatti Clock contains no user serviceable parts DO NOT attempt to open the case as there are potentially dangerous voltages present inside In the event of ...

Page 5: ...ns regenerator or by a malfunctioning mains regenerator is not covered by the warranty Positioning the unit Units in the Scarlatti range are designed to be mounted on separate shelves of a rack and must NOT be stacked directly on top of each other Place each unit on a firm vibration free base allowing convenient connection to the other parts of your system To prevent overheating we recommend that ...

Page 6: ... menu Press the button a few times to highlight the Factory Reset menu page Press the Menu button and wait a few seconds while the unit resets itself The GOLDEN RULES for using a Master Clock The source equipment MUST be locked to the Master Clock If it is not you will either have locking difficulties or hear occasional clicks and the advantages of using the Clock will be lost Some non dCS CD tran...

Page 7: ...the DAC s SYNC button to set it to WClk Connect the DAC s Analogue Outputs to a power amplifier or preamplifier Set the DAC Volume control to a suitable level and play a disc Set the Clock s DITHER feature on or off as you prefer REF IN WORDCLOCK OUTPUTS 1 2 3 4 5 6 7 8 1394 SUC 50 60 Hz 30W FUSE T 500mA L ANALOGUE OUTPUTS LEFT RIGHT RIGHT LEFT AES 1 AES 2 RCA 1 RCA 2 SPDIF DIGITAL INPUTS TOSLINK ...

Page 8: ...ck and display Sync Set the Upsampler to sync to the external word clock Use the DAC s SYNC button to set it to WClk Connect the DAC s Analogue Outputs to a power amplifier or preamplifier Set the DAC Volume control to a suitable level and play a disc Set the Clock s DITHER feature on or off as you prefer Using an External Reference If you have a GPS receiver or an atomic clock with a 10MHz output...

Page 9: ... To switch off hold down the POWER button for about 5 seconds until Power Down appears on the display then release it When the menu is open press the POWER button to close the menu DISPLAY Button Press the DISPLAY button B to turn the main display off and on When the display is off the LED over the button will light to warn you that the unit is running When the menu is open the DISPLAY button chan...

Page 10: ...tive is Bipolar If the unit is locked to an external reference SYNC is displayed instead If an external reference is connected but the unit cannot lock to it SYNC is displayed greyed out Details of the menu displays are shown in the Menu section on page 12 FREQUENCY Button Use the FREQUENCY button E to set the clock frequency to either 44 1kHz or 48kHz The usual setting is 44 1kHz MENU Button Pres...

Page 11: ...word clock at 32 44 1 48 88 2 or 96kHz With the Coupling menu page set to Bipolar the unit will lock to a 10MHz reference As the Scarlatti Clock is a grade 1 master clock there is nothing to be gained by locking it to a less stable or less accurate reference 1394 Interface There is provision for fitting an IEEE 1394 interface I which may be added at a later date As a Master Clock does not generate...

Page 12: ...rsion Contact Unit information CDUpdate Displays the loaded software issues and serial number Displays dCS contact details Displays the unit status Starts software update from a dCS CD Clock Settings Coupling Factory Reset Sets the External Input to detect TTL or bipolar AC Restores standard factory settings Display Settings Bright Contrast Test Display Sets the display brightness Adjusts the disp...

Page 13: ...e Menu Guide sheet to help you find the right menu Each unit in the range has either three or four top level menu pages The INFORMATION menu gives software issues serial number contact details and unit set up details Each model has a different SETTINGS menu which allows you to set some features that are not directly accessible from the front panel The DISPLAY SETTINGS menu is used to adjust and te...

Page 14: ... the MENU button to exit The CD Update feature allows you to load new software into your system from either a Scarlatti transport or any STANDARD CD player or transport Note that some non Red Book CD transports change the digital data and cannot be used to download new software Please follow the instructions supplied with the update CD carefully CLOCK SETTINGS Menu The Coupling menu page sets the ...

Page 15: ... all carry the same clock frequency Reference Input External Reference Input on 1x 75Ω BNC connector Accepts word clock with the Coupling menu page set to TTL or AC coupled signals with the Coupling menu page set to Bipolar at 32kHz 44 1kHz 48kHz 88 2kHz 96kHz 1MHz 5MHz or 10MHz Lock range is 300ppm Start up time Typically 1 minute to rated accuracy Size and weight 460mm 18 0 long x 405mm 15 9 dee...

Page 16: ... could result in damage to the unit risk of fire or electric shock and will invalidate the guarantee Referring to the diagram below remove the power cable use a small flat bladed screwdriver to pry up the tab on the fuse carrier A and pull it out Push the blown fuse out of the clip in the carrier B and dispose of it Fit a new fuse in the clip C and push the carrier back into the unit so that it cl...

Page 17: ...he product is operated without a mains earth or ground connection the unit is returned inadequately packed dCS reserve the right to apply a service charge if a product returned for warranty repair is found to be operating correctly or if a product is returned without a returns number being issued This warranty covers parts and labour only it does not cover shipping charges or tax duty Our dealers ...

Page 18: ...ucts make extensive use of software configurable chips FPGAs and DSPs This gives us the ability to update our products to add extra features update digital interface standards or make performance improvements by loading new software Occasionally a hardware update may be necessary also to increase the capacity of the electronics add extra connectors or extra front panel controls Please note that no...

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