Table of Contents
Advertisement
Specifications
MOTOR SECTION
(These specifications apply only to the quartz lock mode.
Motor
: Core less , DC type
FG servomotor
: Phase- locking to the quartz
oscillator
: Direct drive
: 33-
1/3
Servo system
Drive system
Speeds
Fine pitch
adjustable range
Wow and flutter
Signal- to-noise ratio
Speed detection
Starting torque
Speed deviation
Load characteristics
Drift
Power characteristics
Temperature
characteristics
Platter
TONEARM SECTION
Type
Effective arm length
Overhang
Weight range
including headshell
: :!: 6 % (at the pitch
control mode)
: 0.
025 % (WRMS)
: More than 78 dB (DIN-
: Frequency generator
: More than 1.
2 kg-cm
: Within 0.
002 %
: 0 % (with 170 g total tracking
force)
: 0. 0001 %/H
: 0 % (:!: 10 V)
: 0.
00005
%tc
: 32.
7 cm
: Statically-
balam;ed oil-
damped
tonearm
: 233 mm
: 15 mm
: 13 - 20 g
24 g (when using the provided
sub-counterweight)
2. Service Precautions
. Be
sure to use JVC standard parts.
. When
repairing the speed control circuit board con-
nect the m938
G motor in order to
prevent damage
to the transistor used.in the platter drive section.
. Be
sure to adjust motor speed with the u
nit level
otherwise fluctuations which make adjustment impos-
sible may occur.
. When repairing circuit board with the heat sink
re-
moved
, attach mobile heat-sink to prevent the tran-
sistor temperature from rising.
CARTRIDGE SECTION
(Except for USA
, Canada and U.
Type
: Moving magnet (MD-
l025EB)
Frequency response
: 10 Hz
- 25 000 Hz
Output
: 3 mV (1 kHz)
Channel separation
: 25 dB (1 kHz)
(using the test record TRS-
: 47 -
100 k-ohms
: 10 x 10
6 cm/dyne (dynamic)
30 x 10
6 cm/dyne (static)
: DT-
Zl EB
, 0. 3 x 0.7 mil.
(diamond , elliptical)
Optimum tracking force: 1.
75 g :!: 0.
25 g
GENERAL
Power consumption
Dimensions
Load resistance
Compliance
Stylus
Weight
Accessories
EP adapter
: 15W
: Height 14.
2 cm (with closed
cover)
Width 45.
6 cm
Depth 40.
0 cm
(Since the dimensions show only
the design measurements
, con-
sideration is requ ired when
installing the unit in a limited
space such as a rack
, etc.
: 11 kg (without the packaging)
Sub-counterweight
: 1
Place the adapter on the center
spindle when playing a record
having a bigger diameter center
hole such as a doughnut record.
: 1
Design and specifications subject to change without notice.
3. Features
. Newly developed oil-
damped tonearm
assures high
trackability.
Highly sensitive
, new gimbal'
support tonearm system.
. Double-
quartz servo circu
it and high torque
, non-
resonance coreless motor give high reliability.
. Extra-
heavy aluminum diecast platter (2 kg including
the mat , inertia 330 kg/cm
Howling margin is greatly
improved with the new
super-compound (type-
l) board used as the base.
Operation buttons and controls are positioned at the
front for easy operation.
. NR-
type
headshell with minimum
resonance is em-
ployed.
Moving-magnet cartridge with a elliptical stylus.
Fine pitch control allows adjustment
within:!: 6 %
(approx. a half note).
. Quartz
lock/Pitch control meter for convenient speed
check.
Fully automatic mechanism.
QL-
No. 2464
Hide quick links:
Advertisement
Table of Contents
