Radius5 Record Player User Manual 2
 INSTALLATION
SYMPTOM
No power
Place the Radius5 on a rigid level surface (take care to avoid damaging the
surface by the spike feet). The arm cable should be securely fixed into the base
of the tone arm and connected to the phono input of the amplifier without pulling
on to the Radius5. It is important to ensure the phono input is mached
type of cartridge you are using and that the tone arm cable ground lead is firmly
attached to the phono input grounding point on the amplifier.
To ensure correct geometry, tracking weight and anti-skate force, the
cartridge/tone arm should be assembled according to manufacturer's instructions.
Connect the power lead to the correct voltage/frequency mains supply and
switch the Radius5 on. The Radius5 platter will start to rotate at the speed
corresponding to the position of the drive belt on the pulley. In most countries,
220-240Vac mains supplies are at 50Hz and 110-120Vac mains supplies are at
60Hz. If you are unsure of your mains supply frequency, consult your local
electricity supplier.
Please note that the motor body is de-coupled and it will oscillate back and forth
while it synchronises with the mains frequency and gets to the correct speed.
This method of mounting and isolating the motor ensures minimal motor noise
break through and stabilises the continuous running speed.
 NOTE:

Always remove the platter before moving/transporting the Radius5.
If fitted with the NIMA; remove the counter weight assemby, lock the NIMA
in transit position and secure it with the releasable tie-wrap to its arm rest.
OPERATION
Wrong speed
LIKELY CAUSE
SUGGESTED REMEDY
AC Mains lead not inserted properly
Ensure AC Mains lead is fully inserted
Unit not switched on
Switch unit on
Incorrect pulley groove selected
Check your mains supply frequency and
with the
place drive belt in the correct pulley groove
(see figure in assembly section above)
Mis-tracking
Incorrect arm/cartridge set-up and
Check arm/cartridge set-up (refer to
and poor sound
alignment
manufacturer’s user manual)
Hum from
Tone arm cable ground not
Connect tone arm cable ground lead to
speakers
connected or
phono amp ground terminal
Incorrect Grounding
Check mains polarity and grounding on all
Record player
quality
connected equipment
 GUARANTEE
There are no user-serviceable parts inside your Roksan Radius5 Record Player.
If a fault should develop, refer any servicing to your appointed ROKSAN dealer,
distributor or ROKSAN approved service agent.
Your Roksan Radius5 Record Player is guaranteed against any defect in
materials and workmanship for a period of two years from the date of purchase.
This guarantee only becomes effective if the warranty card is validated (by the
ROKSAN retailer from whom the equipment was purchased) and returned to
ROKSAN within 28 days of purchase.
This guarantee excludes:
1. Damage caused due to accident, misuse, neglect and incorrect installation,
adjustment or repair.
2. Liability for damage or loss during transit from the retailer or purchaser to
ROKSAN or its authorised distributor for the purposes of repair or inspection.
Carriage costs to ROKSAN shall be borne by the consignor.
Your Radius5 record player is now ready for use. With the drive belt in the
desired pulley groove switch the Radius5 on. Check the amplifier volume is set
to low and that the correct input for phono is selected. Gently increase the
volume and check for any unwanted hum/noise. Now check the hum level with
the amplifier at high volume. There should be no hum or very low level of hum
audible (Remember to lower the volume afterwards). If so, then carefully place
the record you wish to play onto the platter, gently lower the arm/cartridge onto
the track you want to listen to and enjoy the music from your Radius5.
To select 45 or 33 rpm, switch the motor off and place the belt around the
corresponding pulley groove and start the motor again. The motor will at first
rock back and forth a few times to catch up with speed and synchronise. Once
the motor has settled down, place the record on the platter and play your
desired track.
 TROUBLESHOOTING
If you suspect that your Radius5 record player is not working correctly, first
check all the connections. Pay particular attention to cartridge tag connections,
(channel & phase), tone arm cable connections (phono RCAs & ground) and
mains lead connection. Below are some commonly encountered problems with
suggestions for possible cure. The list is not exhaustive: If you have any
unresolved problems, please consult your ROKSAN appointed retailer,
distributor or Roksan Audio.
All claims under this guarantee must be made through an authorised ROKSAN
retailer.
If equipment returned for repair to ROKSAN is found on inspection to comply
with the product specification ROKSAN reserves the right to make a charge for
examination and return carriage.
FAX.
+44 (0)208 900 6801
+44 (0)208 900 6802
+44 (0)208 900 0734
Main Bearing Spindle ................................. Precision machined stainless steel
Main Bearing Housing ..................................... Precision machined solid brass
Main Bearing Ball .............................................. Precision case hardened steel
Pulley ....................................................... Precision machined aluminium alloy
Platter ..................................................................... Precision machined acrylic
Motor ........................................................ Custom made 24 pole synchronous
Speed ............................................................................................ 33 & 45 rpm
Power ...................................................................... 110 or 220 Vac - 50/60 Hz
Rumble .................................................................................................. <-75dB
Wow & Flutter ........................................................................................ <0.04%
Dimension ...................................................... 400 x 350 x 150mm (W x D x H)
Weight ......................................................................................................... 7Kg
All specifications are liable to change without prior notice. E & O.E.
The best of
Technology
c 2005 Roksan Audio Limited
O
Printed in England
Designed by
 ASSEMBLY
Your Radius5 is carefully and thoughtfully packed so that the packaging can be
re-used whenever you need to transport it. Please store all the packaging
material for future use.
WARNING
The NIMA tonearm is shipped without its counterweight attached and locked
in transit position. It is also secured onto the arm rest with a releasable tie.
Please refer to the NIMA user manual for its correct installation and setup.
Congratulations on your purchase of the Roksan Radius5 record player.
This record player is designed and manufactured to the highest specification
and rigorously tested to reward you many years of listening pleasure.
INFORMATION PACK
Your Radius5 record player is at the heart of your vinyl replay system. Its
correct installation, set-up and operation will have a profound influence on the
sonic performance of the entire hi-fi installation.
Please read the contents of this manual thoroughly. It will help you to
understand your record playing equipment better and enhance your listening
pleasure.
BRIEF
www.roksan.co.uk
 SPECIFICATIONS
PACKAGING
Record player
Usermanual
ROKSAN AUDIO LIMITED UK
TEL.
DRIVE BELT
PLATTER
Remove the Radius5 from its protective bag and check that the voltage label
indicates the correct voltage range and frequency for your mains supply.
If the Radius5 is fitted with the NIMA tone arm, be extra careful not to damage
the arm while you are assembling the record player.
If in doubt, remove the tone arm. (Refer to the NIMA user manual)
Remove the Adjustable Spike Feet (x3) from the accessories bag and carefully
fit them to the bottom plinth. Initially screw them all the way as the surface you
intend to place the Radius5 on would normally be level.
The feet could be used to level the Radius5 in its final position later if required.
Remove the Platter, with the record label recess upper most, carefully locate its
central hole over the main bearing spindle and gently lower it until the two are
fitted together.
Remove the Drive Belt and gently place it around the platter and then onto the
pulley. Note position 1 is for 33 rpm and position 2 is for 45 rpm. It is important to
check that your mains supply frequency corresponds to the frequency specified
on the radius5 mains input label.
1 33rpm
2 45rpm
TOP PACKING TRAY
The design of the Radius5 record player has many special features not found in
other similar turntables. Drive mechanism utilises a custom synchronous motor
fitted with a precision-machined solid aluminium alloy pulley. The main bearing
housing and spindle are custom designed and machined from solid brass and
solid stainless steel to extremely high precision to ensure ultra smooth running
and longevity. The platter is machined from solid Acrylic to very high accuracy
and ensures speed stability. Main bearing, Platter and Tone Arm are mounted
on the sub plinth and three point de-coupled from the main plinth to maximise
performance and minimise acoustic break through. The motor assembly is
mounted on the motor block and then onto the main plinth and further decoupled to avoid motor noise break through. Tone Arm cable is rigidly fixed to
the main plinth that acts as a mechanical ground and minimises interference
with the sub plinth. The Radius5 has three custom made adjustable spike feet
to allow levelling and provide optimum coupling to the surface that it sits on.
Partnered with the NIMA tonearm, the Radius5 gives unparalleled performance
in its class.
50Hz MADE IN U.K
MAX. POWER: 3W
220 - 240 Vac
PLATTER
DRIVE BELT
TONEARM CABLE
R
L
PLUG
ACCSESORIES
NIMA TONEARM
RADIUS5

ADJUSTABLE SPIKE FEET
NOTE:
The Main Bearing is already charged with correct type of oil & grease and
it is important that the Main Bearing Spindle is not removed from the
bearing housing. This will disperse some of the oil and necessitate
charging the Main Bearing with oil again. The Main Bearing requires cleaning
with a cotton bud and recharging with Roksan supplied bearing oil every 2-3
years. Consult your Roksan appointed retailer/distributor or contact Roksan
Audio for any assistance.
Seal of
Quality
NIMA TONEARM
Finally, for assembling and fitting of your tone arm and cartridge, refer to the
manufacturer's user manual.
MAIN BEARING SPINDLE
IMPORTANT
MOTOR BLOCK
SUB-PLINTH
MAIN PLINTH
CARTON
BOTTOM PACKING TRAY
The Radius5 is mains operated. DO NOT try to gain access to the inside
of this unit. Refer all servicing to your Roksan appointed retailer/distributor
or contact Roksan Audio.
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