Sony PS-X700 Operating Instructions Manual page 3

FEATURES
Biotracer electronic tonearm
The horizontal and vertical movement of the tonearm is monitored
by the Biotracer's own sensors, and this information is transmitted
to the tonearm by the tonearm's own linear torque motors to sup-
press resonance at low frequencies and to obtain the maximum
signal-to-noise ratio.
Tonearm auto-balance and stylus force adjustments
The microcomputer automatically adjusts tonearm balance with
the tonearm at the arm rest, and the stylus force is adjusted by the
control on the front panel and digitally read out. You can even ad-
just the stylus force during record play.
Fully automatic system
@ Record size is automatically set by a photo sensor system.
lf no record is on the turntable, the tonearm will not descend but
will automatically return to the arm rest.
e@The muting system activates when the tonearm is lifted and
deactivates after the tonearm lowers onto a record. There is no
need to turn down the amplifier volume every time a stylus is
placed on a record or when a cartridge is changed.
@When the tonearm lowers to the lead-in groove of a record, the
cassette deck stand-by mode is released and the record mode
assumed. When play finishes, the cassette deck is automatically
set first in the record muting mode, then in the pause mode.
This synchronized operation is possible with Sony cassette decks
equipped with a four-pin remote control jack which is connected
with a Sony RM-65 synchro remote control unit.
Quartz lock and magnedisc servo system
The turntable maintains an accurate and drift-free speed by refer-
ring to a frequency generated by a very stable quartz oscillator, and
with the aid of a speed monitoring system which utilizes a
magnetic pick-up head and a pulse signal derived from a magnetic
coating at the edge of the platter.
Linear torque BSL motor
Direct drive system with Sony's unique BSL (brushless and
slotless) motor which has a high signal-to-noise ratio to virtually
eliminate wow and fiutter. Its high torque assures quick start to
33/3 rpm after only a half revolution.
Electromagnetic brake system
Electromagnetic brake system stops the turntable quickly and
smoothly.
PRECAUTIONS
On safety
@ Operate the unit only on 120 V ac.
@ Should any solid object or liquid fall into the cabinet, unplug the
unit and have it checked by qualified personnel before operating it
any further.
@ Unplug the unit from the wall outlet if it is not to be used for an
extended period of time. To disconnect the cord, pull it out by the
plug. Never pull the cord itself.
On installation
@ Place the turntable on a level surface.
@ Avoid placing the unit near electrical appliances (such as a televi-
sion, hair dryer, or fluorescent lamp) which may cause hum or
noise.
@ Place the turntable where it will not be subject to any vibration,
such as from speakers, slamming of doors, etc. .
e@Keep the unit away from direct sunlight, extremes of
temperature, and excessive dust and moisture.
@ The turntable has resilient feet that isolate the mechanism from
external shock and vibration. If the unit has not been placed ona
level surface, turn the feet to level the unit.
comet
On repacking
@ Take off the cartridge shell.
@ Unscrew the arm rest height locking screw.
@ Release the tonearm height adjustment knob and fix the tonearm
at its highest position.
© Release the arm rest clamp. Secure the tonearm with cushions.
® Secure the transit screws on the motor board.
© Repack the turntable with the original cushions.