CYRUS CD6s CONTROL SOFTWARE
© Cyrus Audio Ltd Nov 2006 11 Cyrus CD6s Service Manual Issue 2
Flash Software Installation
The CD6s features upgradeable software for its control system. The design includes a
microcontroller with internal flash memory (IC502) which includes the control code. Version
changes for the listed products are now made by connecting a PC through the Cyrus Flash-
Programming Interface box to the programming connector on the main PCB and running
programming software from the PC to install the revised software version.
The version installed at the factory is labelled on the IC but the label will not show the correct
version if the software has been changed electrically. A reliable method to check the installed
software version (without dismantling the player) is to read it from the display of as follows -
1. Connect power to the unit and set to Standby (power light red).
2. Press and hold the Standby key.
3. The software version and release date will be shown on the display.
If it becomes necessary to install a later version of software, contact Cyrus UK for availability
of the Flash-Programming Interface box and software. This is supplied with full instructions to
set the programming software up on a PC and load the CD6 software for installation into the
player memory.
Version control
The microcontroller is labelled during the manufacturing process to show which software
version is installed. If the software version is revised at some point this indication should be
clearly deleted with a cross marked on the device label. Product software must never be
replaced with an earlier version than already installed.
NOTE:- In all cases the only means to reliably check the installed software version is with the
‘version checking’ procedure listed above
.
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