Control Unit Operation; Tightening The Record Clamp; Tips To Maximize Performance; Maintenance - Oracle PREMIERE User Manual

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Control Unit Operation

1) Start the turntable by pressing the 33
or 4 5 s p e e d selection button.
2) Press the " O F F " button to stop the
unit.
3) Increase
the
selected
pressing the button to the right of the
digital display.
4) Decrease the
selected
pressing the button to the left of the
digital display.
NOTE: There is a 1/100 RPM speed
variation every time either button is
depressed. The speed can be varied to
a maximum of ± 5 per cent of the 33
or 45 standards.
5) Depressing the 33 or 4 5 s p e e d selec­
tion buttons instantly brings the s p e e d
back to the set reference.

Speed Calibration

Potentiometers for s p e e d calibration are
located at the back of the control unit.
T o determine if these require
ment, use the strobe disc supplied w i t h
the turntable.
If adjustment is necessary, depress the
45 s p e e d selector button and turn the
potentiometer using the flat screwdriver
supplied in the tool kit. A n increase in
s p e e d is effected by turning the screw­
driver c l o c k w i s e , and a decrease by
turning it counter-clockwise.
N o w perform the s a m e operation for the
33 R P M s p e e d .
NOTE: Make sure that the digital dis­
play reads "45.00" and "33.00" res­
pectively before carrying out this ope­
ration.
NOTE: The AC circuit is protected by
a .5 ampere fuse.
Tightening the Record
Clamp
Overtightening the record c l a m p could
result in d a m a g e to your records. For
o p t i m u m performance the c l a m p needs
only be finger tight. Gently tapping the
run-out groove area using a pen or pen­
s p e e d
by
cil will provide an audible indication of
h o w well the record is c o u p l e d w i t h the
mat.
s p e e d
by
Improper c l a m p tightening may result in
misaligned azimuth as the disc a s s u m e s
a concave rather than a flat surface. This
can be determined by c l a m p i n g an L P
with an unusually short playing side, us­
ing the s m o o t h black lead-out area as a
reflective surface to c h e c k azimuth.
Tips to Maximize
Performance
1) Y o u r P R E M I E R E turntable is equip­
ped with a superb s u s p e n s i o n s y s t e m
capable of filtering out virtually all un­
wanted mechanical energy. Like all turn­
tables, however, it performs at its best
w h e n located on a solid platform well
adjust­
a w a y from your loudspeakers. For opti­
m u m s o u n d quality, w e
that you m o u n t the P R E M I E R E on a
solid foundation — preferably on a shelf
anchored to a load-bearing wall — a w a y
from the direct path of the loudspeak­
ers.
15
2) If your s y s t e m is capable of gene­
rating high s o u n d pressure levels (SPL)
at 20 Hz and b e l o w , try using the P R E ­
M I E R E without its dustcover attached.
Under s u c h circumstances, the
cover may act as a diaphragm and trans­
mit energy to the acrylic base exceeding
the filtering capability of the s u s p e n ­
sion.
3) W h e n the turntable mat
dusty, it should be cleaned with Bril-
lance, the f o a m w i p e d off with the lint-
free cloth s u p p l i e d . A l l o w the cleaner to
dry by itself.
4) M a k e sure that the peripheral w a v e
band is firmly and evenly seated around
the platter.
5) Certain types of record w a r p s may
be flattened more readily w i t h the taper­
ed washer placed on top of the mat (in­
stead of underneath the mat).

Maintenance

1) T h e bearing and spindle a s s e m b l y
are designed to offer
trouble-free
assembly on the P R E M I E R E is specially
lubricated and permanently sealed to
the spindle. N o service is required.
2) A l l metal parts (with the exception of
the bearing and the spindle) are manu­
factured of an aerospace-grade magne­
sium / a l u m i n u m
durable baked acrylic finish. T h e y may
be periodically cleaned with a soft cloth
and a mild detergent. Do not use a sol­
vent-based
mar the acrylic finish.
3) A l l acrylic parts should be cleaned
with Brillance and a lint-free cloth.
4) Every 6 m o n t h s , remove the platter
and clean the belt, the motor pulley, a n d
the inner rim of the platter with a f e w
drops of denatured alcohol and a clean
lint-free cloth. C h e c k the belt for signs
of deterioration,
h a r d e n i n g .
c u m s t a n c e s , the lifespan of the
should be approximately 2 years.
r e c o m m e n d
dust-
b e c o m e s
many years of
operation.
Each
bearing
alloy treated
with a
cleaner
which
would
s u c h as cracking or
U n d e r
n o r m a l
c i r ­
belt

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