7
Cyrus PSU-XR
User Instructions
Firmware
From time to time there may be a requirement to check
the firmware version installed in the PSU-XR. This may be
necessary to ensure compatibility with connected Cyrus
products or to assist with technical or service questions.
Checking the version from the PSU-XR
The PSU-XR firmware version is displayed as a code on
the Standby/Status indicator when mains power is first
connected. The version is read as follows -
• Connect mains power.
After a short delay the Standby/Status LED will indicate
the firmware version with a sequence of red flashes (the
first digit) followed by a sequence of green flashes (the
second digit). The absence of green flashes indicates the
second digit is 0.
The sequence ends with the Standby/Status indicator
lighting red continuously to indicate standby mode is
now set.
For example -
1 x red flash followed by 2 x green flashes followed by
continuous red (standby) indicates V1.2.
2 x red flashes followed by continuous red (standby)
indicates V2.0.
Checking the version from a connected Cyrus product
The PSU-XR firmware version may also be read directly
from any connected Cyrus product which has a front panel
display screen.
•
Open the settings menu of the connected Cyrus
product.
•
Select the PSU-XR menu option.
Firmware and hardware version information will be
displayed for the PSU-XR.
Updating the firmware
If an updated firmware version is available, this may add
new features, further enhance compatibility with the Cyrus
range or fix operational issues.
If new firmware is available from the ‘Support’ pages of the
Cyrus website www.cyrusaudio.com, this will be packaged
with other documents including -
• Firmware version change log.
•
Latest firmware update procedure.
•
Revised handbook (if required).
NOTE: Updates to the PSU-XR firmware may also require
a firmware update to be made to the connected Cyrus
product. When updating the firmware in a PSU-XR always
check if there is an update available for the connected
Cyrus product at the same time and update if necessary.