Pioneer pl 610 owners manual

Page 1

Guartz PLL DIRECT DRIVE
STEREO TURNTABLE

L-B'I-
KUT

OPERATING INSTRUCTIONS KCT

IMPORTANT NOTICE

write this serial number on your enclosed warranty card and keep it
in a secure area. This is for your security.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR -

(IDPIONEER MOISTURE.

The serial number for this equipment is located on the rear. Please -

IIII Ill

Page 2

Features ............................ 2
Before Use .......................... 3
Assembly Procedure ................... 4
Installation Precautions ................ 5
Connections to Stereo Amplifier ......... 5
Adjusting the Tonearm ................. 6
Panel Facilities ....................... 8

CONTENTS

Playing Procedure ..................... 10
Operation Principle of Quartz PLL DD

Motor ............................ 12
Maintenance ......................... 13
Trouble? Check it out .................. 14
Specifimtions ........................ 15

FEATURES

Quartz PLL Brushless DC Hall Motor

The model adopts a quartz PLL system which compares
the waveforms of the high-precision reference oscillator
employing a quartz crystal with the output waveforms of
the frequency generator built into the rotor of the motor,
and thereby controls the rotational speed of the motor.
This system features superb time and temperature drift as
well as load resistance characteristics, so the motor guaran-
tees speed accuracy at all times.

Precision-engineered Parts for an Excellent Speed
Performance

The precision-finished center shaft and bearings (with a
circularity of less than 0.2a) and the platter with its high
inertial mass of 340kg-cm2 prove to be a winning combina-
tion in this model. Together with the quartz PLL brushless
Hall motor, they yield such top-notch characteristics as a
wow and flutter of less than 0.025% (WRMS) and a signal-
to-noise ratio of better than 75dB (DIN-B). This is a truly
professional performance.

Electronic Auto Return Mechanism

An optical non-contact detection method is used to
detect the position of the auto return, and no harmful later-
al pressure is exerted on the tonearm while this is being
detected. A special DC motor is used for the return of the
tonearm and for the arm elevation operations. This means
that a smooth and reliable quick return operation is ensured
without affecting the rotation of the platter.

2

Handy Quick Play Function

When a record is about to be played, the quick play
function swings into action and starts the platter rotating
just by the movement of the tonearm as it moves away
from the arm rest to the record. An optical system is em-
ployed for detection and absolutely no excess force is
exerted on the tonearm.

All-electronic Durable Quick Stop Function

The model incorporates an allelectronic brake to bring
the platter to a halt instantly. When the tonearm swings
back to the arm rest, a current flowing in the opposite
direction to that determining the platter's rotation passes to
the motor drive coil and, in an instant, the platter is
stopped rotating. This function is convenient for changing
over records speedily.

No-howl, Vibration-resistant Coaxial Suspension
System

The platter and the tonearm are secured to the base
board, and the base board is spring-mounted and separated
from the cabinet with what Pioneer calls the coaxial sus-
pension construction. This cuts out virtually all of the
vibrations transmitted from the floor, and greatly reduces
the chances of howl.