Dual 604 - Page 2

Contents
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11 —
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Technical data
Current
Line voltage
Drive
Power input
Power consumption
Time from
start to rated speed
Platter
Platter
speeds
Pitch control
Speed control (monitoring)
Technical data
Wiring
diagram
Audio
connection diagram
Dual EDS 500
electronic direct
drive system
Replacement of motor
electronics
Replacement
of motor mechanic
Adjustment of nominal
speeds
Setting
78 rpm nominal
speed
Stroboscope
Pitch
control
Tonearm and
tonearm
suspension
Removal of
tonearm from bearing frame
Removal of tonearm compl.
with
tonearm suspension
Removal of
spring housing
Adjustment of tonearm
suspension
Antiscating control
Cue control
Replacement of cue control assembly
Tonearm
control
Adjustment
point
Muting switch
Starting and
shut-off
Adjustment points: Segment/power switch
Pick -up
head not parallel
Stylus
slips out of
playing groove
Tonearm does
not set down or lowers onto
record too
quickly
after
Tonearm moves
at zero position of
dials
Motor does not shutt-off when setting down on tonearm rest
Acoustic feedback
Replacement with exploded
views
Lubrication
Sensitivity of the illuminated strobe
(for
0.1 % speed
deviation)
Total
wow and flutter
Rumble
laccording to DIN 45
5001
Tonearm
Effective length of tonearm
Offset
angle
Tangential tracking error
Tonearm bearing friction
Stylus
pressure
Weight
AC 50 to 60
Hz
110 to
125V, 220 to
240V
electronically-regulated direct-drive system, Dual EDS 500
approximately
2 watts, Motor at playing Operation
< 50 mW
220 V 50
Hz: at start 25 mA
110 V
60 Hz: at play 15 mA
at
start 65 mA at play approximately
25 mA
2 — 2.5 s at
33 1/3
rpm
non-magnetic, dynamically balanced, detachable 1 3 kg, 300 mm diameter
33
1/3 and
45 rpm, electronically adjustable
Separate for both speeds, each adjustable by means of variable resistor,
with
calibration scale;
range of
regulation: 10%
with
illuminated
stroboscope for
platter speeds 33 1/3 and 45 rpm,
adjustable to 50 or 60
Hz.
6
division markings per minute at
50 Hz,
7.2 division markings per minute at 60 Hz.
according to
DIN 45 507 (German
Industry Standard)
< ± 0.06 %
Unweighted:
> 45 dB
Weighted:
>
65 dB
Torsional ly rigid tubular aluminum tonearm in
low-friction four-point gimbal
suspension, tonearm counterbalance with
two mechanical anti-resonance filters.
222 mm
25 0
20'
0.16
0 /cm
vertical <
0.07 mN
10.007
g)
horizontal
<
0.16 mN )0.016g)
from 0 to 30 mN 10 to 3
g) infinitely
variable with 1 mN-
11/10 g) calibrations
from 0 to 15 mN 10
to 1.5 g), operable from 2.5 mN
10.25 g) stylus pressure up.
4.6 kg
Dimensions
and
Cutout Required refer
to
Installation
Instructions.
(related to stylus
tip)
2