Cyrus 8 DAC - FLASH SOFTWARE; Reprogramming amplifiers without push rotary control; Reprogramming front panel control PCBs with push control

FLASHSOFTWARE
©CyrusAudioLtdJun2014 20 Cyrus6DAC,Cyrus8DACservicemanualIssue1
FlashSoftwareOverview
The amplifiers feature upgradeable software for the control system. The front panel control
PCBincludesamicrocontrollerwithinternalmemorythatincludesthesoftware.
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.Themostreliablemethodtocheckthe
softwareversion(withoutdismantlingtheamplifier)istoreaditfromthedisplay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.
Re‐programming
NOTE:Productsoftwaremustneverbereplacedwithanearlierversionthanalreadyinstalled.
If itbecomes necessary to install  a laterversion ofsoftware, firstcheck whichversion ofthe
rotary control isfitted.The controls onlater amplifiers haveapush function,earlyamplifiers
donot.
Reprogrammingamplifierswithoutpushrotarycontrol
Contact the Cyrusfactory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 softwarefor
installationintotheamplifiermemory.
The programming connector on the main PCB is arrowed in the
pictureontheright.
ReprogrammingfrontpanelcontrolPCBswithpushcontrol

FrontpanelPCBswithpushcontrolareprogrammedbyconnecting
a USB cable directly from the control PCB to a computer. The
location of the  programming connector on the control PCB is
arrowedinthepictureontheright.
CAUTION: Ensure you have a new firmware file to hand before
starting the process. Do not disconnect the cable until the new
softwareisinstalled.
1. Disconnectthemainsfromtheproduct.
2. Connectamini‐USBcabletoafreeUSBportonacomputer.
3. Whilst pushing therotarycontrolinonthefront panel, connect
themini‐USBcabletothesocketonthebackofthedisplay.
4. AnewwindowwillpopuponthePCwhichwillshowthecurrent
firmware.binfile.
5. Deletetheexistingfirmware.binfile.
6. Copythenewfirmware.binfilesuppliedbyCyrustothisfolder.
7. Oncethefilehasbeencopied,removetheUSBcable.
8. Powerupandcheckthenewsoftwareversionasdescribedabove.