Cyrus PSU-XR User manual

Firmware version V1.1
PSU-XR USER GUIDE
BUILDING A BETTER MUSIC EXPERIENCE

Cyrus PSU-XR User Instrucons
IMPORTANT! READ BEFORE OPERATING THIS EQUIPMENT! ...1
Power supply .............................................................................2
Servicing ....................................................................................2
Product service centres .............................................................2
FCC Noce .................................................................................3
WELCOME TO THE WORLD OF CYRUS ........................................4
Preparaons for Installaon......................................................4
Compability .............................................................................4
Introducon...............................................................................4
INSTALLATION ...............................................................................5
Key to the rear panel drawing ...................................................5
Important – read before making any connecons ....................5
Connecng a PSU-XR to Cyrus Products....................................5
Connecng to the AC mains supply...........................................5
OPERATION ...................................................................................6
Key to the front panel drawing..................................................6
Front panel controls ..................................................................6
Standby/Status indicator colour and brightness .......................6
Power control ............................................................................6
Mains power..............................................................................6
Standby/Status indicaon .........................................................6
Auto Standby.............................................................................6
FIRMWARE ....................................................................................7
Checking the version from the PSU-XR......................................7
Checking the version from a connected Cyrus product.............7
Updang the rmware ..............................................................7
TROUBLESHOOTING GUIDE.........................................................8
Standby/Status indicator doesn’t light ......................................8
Standby/Status indicator ashes...............................................8
Standby/Status indicator remains red.......................................8
Standby/Status indicator lights blue..........................................8
SPECIFICATIONS............................................................................8
Power Supply.............................................................................8
Power Consumpon..................................................................8
Enclosure...................................................................................8
Output voltage ..........................................................................8
WARRANTY....................................................................................9
WEEE..............................................................................................9
CONTENTS

1
Cyrus PSU-XR User Instrucons
WARNING: To reduce the risk of electrical shock do not
remove any unit covers or panels. There are no user
serviceable parts in this product.
WARNING: To reduce the risk of electric shock, do not
expose this equipment to rain or moisture.
HEED WARNINGS: All warnings on the product and in the
operang instrucons should be adhered to.
READ ALL THE INSTRUCTIONS: All the safety and operang
instrucons should be read before the product is operated.
RETAIN INSTRUCTIONS: The safety and operang
instrucons should be retained for future reference.
FOLLOW INSTRUCTIONS: All operang and use instrucons
should be followed.
CLEANING: Unplug this product from the mains before
cleaning. Do not use liquid or aerosol cleaners. Use a damp
cloth for cleaning.
WATER AND MOISTURE: Do not use this product near
water - for example, near a bath tub, wash bowl, kitchen
sink, or laundry tub, in a wet basement; or near a
swimming pool and the like. The product must not be
exposed to dripping or splashing and no objects lled with
liquids, such as vases, shall be placed on the product.
HEAT: The product should be situated away from heat
sources such as radiators, stoves, or any other products
(including ampliers) that produce heat.
VENTILATION: Slots and openings in the cabinet are
provided for venlaon, to ensure reliable operaon of
the product and to protect it from overheang and these
openings must not be blocked or covered. The openings
should never be blocked by placing the product on a bed,
sofa, rug or similar surface. This product should not be
placed in a built-in installaon such as a bookcase or rack
unless proper venlaon is provided or the manufacturer’s
instrucons have been adhered to.
OBJECT OR LIQUID ENTRY: Never push objects of any kind
into this product through openings as they may touch
dangerous voltage points or short-out parts that could
result in a re or electric shock.
ACCESSORIES: Do not place this product on an unstable
cart, stand, tripod, bracket, or table. The product may
fall, causing serious injury to a child or adult, and serious
damage to the product. Use only with a cart, stand, tripod,
bracket or table recommended by the manufacturer, or
sold with the product. Any mounng of the product should
follow the manufacturer’s instrucons, and should use a
mounng accessory recommended by the manufacturer.
POWER SOURCES: This product should be operated
only from the type of power source indicated on the
marking label. If you are not sure of the type of power
supply to your home, consult your product dealer or local
power company. For products intended to operate from
baery power, or other sources, refer to the operang
instrucons.
OVERLOADING: Never overload wall outlets, extension
cords, or integral convenience receptacles. This can result
in an increased risk of re or electric shock.
POWER CORD PROTECTION: Power supply cords should
be routed so that they are not likely to be walked on or
pinched by items placed upon or against them, paying
parcular aenon to cords at plugs, convenience
receptacles, and the point where they exit from the
product.
NAKED FLAMES: No naked ame sources, such as candles,
must be placed on this product.
LIGHTNING: For added protecon for this product during
a lightning storm, or when it is le unaended or unused
for long periods of me, unplug it from the wall outlet and
disconnect the antenna or cable system. This will prevent
damage to the product due to lightning and power-line
surges.
BATTERIES: Warning: Baeries shall not be exposed to
excessive heat such as sunshine, re or the like.
CAUTION! POLARISED CONNECTOR (CANADA and USA):
To prevent electrical shock, match wide blade of plug to
wide slot, fully insert. Do not alter or remove this plug if
it does not t your mains power socket. Have a suitable
socket installed by a competent electrician.
ACCESS TO THE MAINS PLUG: The means to disconnect
this product from the mains supply is the mains plug.
Ensure that the mains plug is accessible at all mes.
IMPORTANT! Read before operang this equipment!
CAUTION: The exclamaon mark is to draw your
aenon to important instrucons and safety
procedures in this manual.
ATTENTION: The lightning ash warns you of the
risk of electrical shock presented by components
inside this product. Unauthorised personnel
must not open this unit.
MOVING THE PRODUCT: A product and cart
combinaon should be moved with care.
Sudden stops, excessive force, and uneven
surfaces may cause the product and cart to
overturn.
ATTACHMENTS: Do not use aachments not recommended
by the product manufacturer as they may cause hazards.

2
Cyrus PSU-XR User Instrucons
Power supply
Connect the moulded IEC connector of the supplied AC
cord into the power inlet on the rear of the unit.
The mains supply requirement of your PSU-XR is marked
on a label on the rear panel. Before connecng, check that
this voltage is the same as your mains supply.
220-230V Products: Voltage Range 220V-240V
115V Products: Voltage Range 110V-120V
If you move to an area with a dierent mains voltage,
contact your local Cyrus distributor to have your product
converted.
There are no user replaceable fuses in this unit.
Servicing
Do not aempt to service this product yourself as opening
or removing covers may expose you to dangerous voltage
or other hazards. Refer all servicing to qualied service
personnel.
CONDITIONS REQUIRING SERVICE: Unplug this product
from the wall outlet and refer servicing to qualied service
personnel when:
• When the power supply cord or plug is damaged.
• If liquid has been spilled, or objects have fallen into the
product.
• If the product has been exposed to rain or water.
• If the product has been dropped or damaged in any
way.
• If the product does not operate normally by following
the operang instrucons. (Adjust only those controls
that are covered by the operang instrucons.
Improper adjustment of other controls may result
in damage requiring extensive work by a qualied
technician to restore the product to its normal
operaon).
• When the product exhibits a disnct change in
performance.
REPLACEMENT PARTS: When replacement parts are
required, be sure the service technician has used
replacements specied by the manufacturer or have the
same characteriscs as the original part. Unauthorised
substuons may result in re, electric shock, or other
hazards.
SAFETY CHECK: Upon compleon of any service or repairs
to this product, ask the service technician to perform
safety checks to determine that the product is in proper
operang condion.
Product service centres
For product service or technical advice, contact only
authorised Cyrus service centres. Contact details for
Cyrus distributors may be found on the Cyrus website at
www.cyrusaudio.com.

3
Cyrus PSU-XR User Instrucons
FCC Noce*
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed
to provide reasonable protecon against harmful interference in a residenal
installaon. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instrucons, may cause
harmful interference to radio communicaons. However, there is no guarantee that
interference will not occur in a parcular installaon. If this equipment does cause
harmful interference to radio or television recepon, which can be determined by
turning the equipment o and on, the user is encouraged to try and correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separaon between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Any changes or modicaons not expressly approved by the manufacturer could void
the user’s authority to operate the equipment.
*115V products

4
Cyrus PSU-XR User Instrucons
Welcome to the world of Cyrus
Congratulaons on your choice of Cyrus Hi- products. Our
state-of-the-art design technology and outstanding quality
of manufacture has won countless awards around the
world. We are condent that you will derive great pleasure
from owning a product from one of the most recognised
and respected manufacturers of hi- equipment.
Now is a good me to register your new Cyrus product. To
register, click here or visit -
www.cyrusaudio.com/support/warranes.
Please read these instrucons carefully before commencing
installaon. They provide full guidance to help you install
your PSU-XR safely and correctly.
Preparaons for Installaon
Before installing your Cyrus PSU-XR check that the
following items are included in the accessory box.
• Mains Power Cable(s)
• 1 x Power interconnect
• 1 x Firmware update cable
• Quick-Start guide
Aer removing these items, please retain the packaging.
Install the PSU-XR in a well venlated locaon away from
sources of high temperature, dust or humidity. Never stand
a PSU-XR under another unit or on any surface likely to
obstruct its cooling or venlaon.
Compability
The PSU-XR power supply upgrade is compable with all
Cyrus audio components that include a back panel PSU-XR
connecon labelled ‘USE PSU-XR ONLY’.
One PSU-XR is required to upgrade each compable Cyrus
system component.
Introducon
The PSU-XR is a versale power supply upgrade that can be
applied to enhance the power supply capacity and sound
quality of many products in the Cyrus range.
In use the PSU-XR will communicate with the connected
component through the power interconnect and congure
its mulple power supplies to enhance the power supply of
the connected product.

5
Cyrus PSU-XR User Instrucons
Installaon
1. Power inlet
2. PSU-XR Power output
3. Upgrade port
Key to the rear panel drawing
MADE IN ENGLAND UPGRADE
3
1 2
Connecng a PSU-XR to Cyrus Products
CAUTION: Use only the power interconnect supplied with
the PSU-XR when connecng a PSU-XR to a compable
Cyrus product. Use of other interconnect cables may cause
a safety hazard.
NOTE: The power interconnect is non-reversible.
• Connect the power interconnect to the outlet on the
back panel of the PSU-XR marked ‘PSU-XR OUTPUT’.
Tighten the screw latches on the connector nger ght.
• Locate the power inlet marked ‘USE PSU-XR ONLY’ on
the back panel of the partnering Cyrus product.
• Place the PSU-XR in a posion where the free end
of the power interconnect can reach this power
inlet without stretching the cable or stressing the
connectors.
• Connect the power interconnect to the power inlet.
Tighten the screw latches on the connector nger ght.
To avoid possible damage to your audio system, it
is essenal to disconnect all system components
from the mains supply before connecng or
disconnecng the system interconnects.
Important – read before making any connecons Connecng to the AC mains supply
NOTE: When a PSU-XR is in use, both the PSU-XR and the
partnering Cyrus product will require connecon to the
mains supply.
• Connect the mains power cable to the power inlet on
the back panel of the PSU-XR.
• Connect the remaining system power cables including
connected PSU-XRs to suitable AC power outlets.
Power connecons to PSU-XRs and other system
components can be made in any sequence.
NOTE: The means to disconnect this product from the
mains supply is the mains plug. Ensure that the mains plug
is accessible at all mes.

6
Cyrus PSU-XR User Instrucons
1. Standby/Status indicator
Operaon
Front panel controls
There are no user controls on the PSU-XR front panel.
All funcons including standby and conguraon are
controlled by the connected Cyrus product via the power
interconnect cable.
Standby/Status indicator colour and brightness
The Standby/Status indicator brightness and colour sengs
will automacally be set to match the indicator brightness
and colour sengs on a connected Cyrus product.
Key to the front panel drawing
PSU-XR
1
Power control
Mains power
In regular use mains power can be le connected
permanently.
When unaended for a long period (holidays etc) mains
power should be disconnected.
Standby/Status indicaon
When mains power is connected, the Standby/Status
indicator will inially ash to show the rmware version
(refer to the ‘Firmware’ secon of this user guide for more
informaon), then light red as standby is set.
When a connected product switches on the Standby/Status
indicator will change to the colour of the connected Cyrus
product. This conrms that power is now being supplied
from the PSU-XR.
NOTE: If the PSU-XR remains in Standby then a rmware
update may be required for the connected Cyrus product.
Refer to the ‘Support’ pages of the Cyrus website www.
cyrusaudio.com to determine whether an update is
required.
Auto Standby
There is no energy saving auto-standby seng for the
PSU-XR as it will always set to the same power state as the
Cyrus product it is connected to.
If auto-standby is required it can be enabled at the
connected product.

7
Cyrus PSU-XR User Instrucons
Firmware
From me to me there may be a requirement to check
the rmware version installed in the PSU-XR. This may be
necessary to ensure compability with connected Cyrus
products or to assist with technical or service quesons.
Checking the version from the PSU-XR
The PSU-XR rmware version is displayed as a code on
the Standby/Status indicator when mains power is rst
connected. The version is read as follows -
• Connect mains power.
Aer a short delay the Standby/Status LED will indicate
the rmware version with a sequence of red ashes (the
rst digit) followed by a sequence of green ashes (the
second digit). The absence of green ashes indicates the
second digit is 0.
The sequence ends with the Standby/Status indicator
lighng red connuously to indicate standby mode is
now set.
For example -
1 x red ash followed by 2 x green ashes followed by
connuous red (standby) indicates V1.2.
2 x red ashes followed by connuous red (standby)
indicates V2.0.
Checking the version from a connected Cyrus product
The PSU-XR rmware version may also be read directly
from any connected Cyrus product which has a front panel
display screen.
• Open the sengs menu of the connected Cyrus
product.
• Select the PSU-XR menu opon.
Firmware and hardware version informaon will be
displayed for the PSU-XR.
Updang the rmware
If an updated rmware version is available, this may add
new features, further enhance compability with the Cyrus
range or x operaonal issues.
If new rmware 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 rmware update procedure.
• Revised handbook (if required).
NOTE: Updates to the PSU-XR rmware may also require
a rmware update to be made to the connected Cyrus
product. When updang the rmware in a PSU-XR always
check if there is an update available for the connected
Cyrus product at the same me and update if necessary.

8
Cyrus PSU-XR User Instrucons
Troubleshoong guide
If your PSU-XR is not operang properly, disconnect the
power and check carefully all connecons.
If you are in any doubt, consult your retailer.
Standby/Status indicator doesn’t light
If the Standby/
Status indicator
doesn’t light mains
power may not be
connected.
Check that the connecons to
mains power are secure at both
the back panel connector and the
mains outlet.
If the mains plug is fused, check
the fuse and if necessary replace
with the correct specicaon 5A
fuse.
Standby/Status indicator ashes
The Standby/Status
indicator ashes
when the PSU-XR is
rst connected to
mains power.
This is normal and does not
indicate a fault or a requirement
to update rmware. The
Standby/Status indicator ashes
a code to display the current
rmware version when rst
connected to mains power.
Standby/Status indicator remains red
The Standby/Status
indicator remains red
when the connected
Cyrus product is
switched on.
Check that the connectors
at each end of the power
interconnect are fully engaged at
both ends and that the latches
are ghtened.
The rmware of the PSU-XR and/
or the connected Cyrus product
may require an update. Refer to
the ‘Firmware’ secon for more
details to check the rmware
version and update if necessary.
Standby/Status indicator lights blue
This indicates that an error has been idened within
the PSU-XR. A PSU-XR error message will also be
displayed on connected Cyrus products which have a
front panel display screen.
The PSU-XR may
have overheated.
If the PSU-XR is very hot to touch,
disconnect mains power and
leave it to cool for 20 minutes
before re-connecng. The error
indicaon should clear.
A funconal error
has been idened
within the PSU-XR.
Disconnect mains power and
reconnect aer 10 seconds.
Switch on the connected Cyrus
product and re-check for the
error indicaon. If the blue
indicator persists, return the
PSU-XR to your Cyrus retailer to
arrange for service/repair.
If a fault condion sll remains, return the PSU-XR to your
Cyrus appointed retailer or an authorised Service Centre.
Specicaons
Power Supply
Voltage ...................... 220-230V Products ......... 220V-240V
115V Products ................ 110V-120V
Power Consumpon
Standby...................................................................... <0.5W
Maximum ................................................................... 750W
Safety compliance ............................................................ CE
EMC (230V).......................................................................CE
EMC (115V)..................................................................... FCC
Enclosure
Size (HxWxD) ... 75 x 215 x 355 mm (2.95” x 8.46” x 13.98”)
Weight ............................................................ 7.7kg (17lbs)
Material....................................................... Die cast chassis
Output voltage
Low voltage supply .... Standby mode ...................... +5V DC
Operaonal........................... +5V DC
Fixed voltage supply .. Standby mode ..............................0V
Operaonal......................... ±24V DC
Variable supply .......... Standby mode ..............................0V
Regulated...............±10V to ±45V DC
Unregulated...........±45V or ±56V DC
Cyrus reserves the right to change all specicaons without noce.
E &OE

9
Cyrus PSU-XR User Instrucons
Warranty
The warranty period is three years. No retailer or
distributor may vary the terms of this warranty, which is
personal to the original purchaser and is not transferable.
Please retain the sales receipt as proof of purchase.
Warranty claims must wherever possible be made through
the retailer from whom the equipment was purchased.
This warranty excludes:
• Damage caused through neglect, accident, misuse,
wear and tear, or through incorrect installaon,
adjustment or repair by unauthorised personnel. Any
unauthorised servicing will result in loss of warranty.
• Liability for damage or loss occurring in transit to or
from the purchaser.
• Consequenal damage, loss or injury, arising from or in
conjuncon with this equipment.
Equipment for aenon under warranty should be
consigned return carriage paid. If returned equipment is
found to comply with the published specicaon, CYRUS
reserves the right to raise a charge.
The above condions do not aect your statutory rights as
a consumer.
WEEE
Cyrus PSU-XR english v1.3
This logo means that this product is not to
be disposed of with your household waste.
This product should be handed over to a
designated collecon point to be recycled.
Your cooperaon in the correct disposal of
this product will contribute to the eecve
usage of natural resources. For more
informaon on collecon points, contact
your local government for more informaon
about recycling.

Cyrus Audio Ltd., Ermine Business Park, Hunngdon, PE29 6XY, U.K.
www.cyrusaudio.com