Origin Live Aurora Gold Platter Driven - Manual (Page 7)

Page 7
polishing cloth and then use it on the turntable.
The Platter works best without any type of mat (including the Ringmat).
It is wise to keep the packing box that the turntable came in so that you
can transport the deck securely. Be careful in moving or transporting the
deck - it is possible to bend the central spacer support bolt if a severe side
movement occurs (bear in mind that the sub-chassis etc. is quite heavy).
Ideally it is best to remove the subchassis from the deck when transporting
the deck.
Depending on your use of the deck, the belt should ideally be
replaced every 2 years or so.
If you withdraw the platter spindle more than a few times you should put in
a drop of oil to compensate for any possible loss.
In the unlikely event that the support rod becomes loose over time such
that it can “rocks” then the nuts need to be re-tightened. Only “nip” the
nut tight by a maximum of 1/8th of a turn after finger tightness has been
achieved and it starts to clamp onto the steel.
T R O U B L E S H O O T I N G
S P E E D V A R I A T I O N
If there is significant speed variation then possible causes are as
follows.
 Significant changes in room temperature - this
especially affects decks that use thick, viscous oil in
the bearings e.g. Rega decks
 Lack of oil in the bearing so check by adding oil.
 Changed belt tension or an oily belt or platter - clean
running surfaces.
 Turntable out of level – this affects the main bearing
friction.
 After adjusting the tension of the 3 small Philips
screws which hold the motor on, you may need to re-
adjust the speed as they affect motor bearing friction
very slightly.
 Check the platter is not fouling on anything - on
certain decks it can rub against the top of the damper
fastening bolt.
 A dirty bearing that exhibits too much friction -
The platter should drift round effortlessly with the
slightest of nudges and go on spinning. If you suspect
the bearing friction to be a little high return the
bearing to us for checking.
 A worn thrust bearing - this may occur on a small
run of bearings, which were too soft.
 Transistors that have developed temperature
instability.
• Most of the pulleys are a taper fit on the motor
shaft - however they can sometimes work loose in
transit or in use. If this is the case then you can easily
rectify it by lightly tapping the pulley back onto the
spindle with your fingers - Do not use a hard object
or excessive force as this could damage the spindle.
E X C E S S I V E M O T O R N O I S E
The motor needs a run in time of around 2 - 4 days continuous running.
They are sometimes a little noisy to start with. It is best to run in the motor
on full power with the belt off. Most importantly you can “tune in” the
motor to give minimum noise by adjusting the tightness of the 3 small
Phillips screws next to the motor pulley. The best way to set their tension
is to tighten the screws until they just nip tight. Then back off all 3 screws
a little way. Now tighten one screw at a time till you hear which ones
cause the least noise when tensioned and then adjust the other two to give
minimum noise. It may be necessary to use thread lock or similar to stop
the screws vibrating loose. If it continues to be very noisy please get back
to us and we may check it out. However bear in mind that the dc motor is
never as silent as a/c motors are - this is because they are cogless and rely on
a different type of brush. Having said this dc motors still sound a lot better
in terms of musical performance.
The other major potential source of noise is the motor
vibrating due to lack of tightness and causing it’s top plate to
resonate. The solution is usually to slightly tighten the 3 small
screws holding on the motor. This adjustment is fairly critical
- if the 3 small screws are too tight then the motor whispers,
too slack and the motor can vibrate against it’s top plate.
Please note that by adjusting these screws you affect the angle of the motor.
If the belt touches the flanges at the top or bottom of the pulley then the
motor is at too extreme an angle and you will need to re-adjust the bolts.
The ideal is for a vertical pulley with the lowest noise level. If
you get a knocking sound from the motor then slightly slacken
off the 3 screws holding the motor to the top plate.
If you have checked the above and are still having trouble please contact us
making a note of the serial number on the back of the control box.
Final setup of tonearm
I N S T A L L I N G T H E A R M
I N T R O D U C T I O N
Rega arms and Origin Live arms require mounting dimensions such that
the centre of the platter to the centre of arm hole is approx 223mm plus
or minus 2mm tolerance and the hole diameter for the arm is 24mm to
25 mm.
Please note that for Origin Live Silver, Encounter and Illustrious tonearms
- do not adjust bearing tightness - this is carefully set at factory - it may seem
that there is “play” in the bearings - this is deliberate and must be left alone
or degradation will result - it is not actually play in the bearing races but
careful bearing fitting to allow a loose bearing fit thus “floating” the arm
rather than rigidly coupling it to the deck.
NOTE
If you are fitting a Rega or Origin Live Arm to the Aurora, Aurora Gold,