Typical HiFi magnetic and dynamic cartridges
re
Te
Cartridge
| Com- | Stylus
GE
Ate
" |
pli | pressure | Caf: Mounting] Total | antire-
Type
ance
tridge [hardware mass
|sonator
MN] fe] | fs] | le) | fo]
Shure
V 15 IV
30
10
|10
6.3
10
73
105
M97
HE
25
|12.5|1.25|
63
10
73
115
TKS380E
| 25
|15 |15 | 48
130
Ortofon
MC 30
25
hs
11.5 | 70 | 10 | 80 | 115
LM 30
30
lio |10|
27 | 10 | 37 | 125
TKS 55 E
25
15
115
25
14.1
Audio-Technica)
AT 20 SS
30
|13
|13 | 80 | 18 | 98 | 95
AT 30E
30
[15
|1.5
50
12
62
110
Dual
MCC
110
25
15
|15
62
125
Tracking Force Adjustment
In order to provide optimum reproduction of the sound signals
cut into the record groove, a certain pressure
— called "tracking
force" — must be applied on the stylus. If you purchased your
turntable with a factory-mounted
Dual cartridge, you'll find
the correct tracking force in the spec sheet supplied with the
unit.
After adjusting the tonearm balance as described above, set the
tracking force by adjusting the dial ring of the counterweight (4),
The tracking force can be continuously set within the range
from O to 20 mN
(0 - 2 g), whereby the digits on the scale
represent the following.
1 = 10mN
A 19
2 = 20mN
A 2g
A graduation mark in the range from 2 - 15 mN (0.2 - 1.5 g) is
equivalent to this 1 mN (0.1 a)
The
unit
works
reliably
from
a tracking
force
of 2.5 mN
(0.25 g) onwards.
Anti-skating
The skating force acting upon any tonearm leads to one-sided
wear of the stylus and record and can cause distorted repro-
duction
For stylus types generally available nowadays, separate setting
scales are available in accordance with the printed symbols
O Setting for spherical styli
© Setting for biradial (elliptical) styli.
Adjustment
of the anti-skating device should
be carried out
to match the setting of the stylus pressure
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Adjustment of Tonearm Balance
Before adjustment of the tonearm balance, connect your turn
table to an AC wall outlet and depress the POWER switch (21)
For further details, please refer to "Connection to AC Power
Line! on page 10. Check which of the two arrow marks above
the LIFT pushbutton (13) is illuminated. If the w arrowmark
lights up, release the tonearm lift by depressing the LIFT push-
button.
To disengage the automatic tonearm system when the
tonearm
is locked on the arm rest, depress the START
push-
button (15) once
Now switch the unit off by depressing the POWER switch (21)
again
Adjust tonearm balance as described below.
The tonearm is balanced if it remains in a horizontal position
when suspended freely (moved inward from its resting post)
and if it returns to this horizontal position if pushed upwards
or downwards.
Shifting the counterbalance (1) on its shaft balances the tone-
arm coarsely; turning the front knurled ring of the counter
balance weight (1) balances the tonearm exactly.
1. Set the tracking force (4) to O and the anti-skating device
(7) to "off" (pointer to left).
Unlock the tonearm and pivot it towards the centre of the
platter over the tonearm rest
2, If the tonearm
does not return to a horizontal
position on
its own, release the locking screw (2) and shift the counter-
balance with the stem until you have an approximate balan-
ce. The stem of the counterbalance should then be locked
by tightening the locking screw,
3. Now find the exact balance by turning the front knurled
ring of the counterweight
Tracking force setting
Antiskating
125 mN å 1.25p
1.25
15
m
15
p
1.5
20
mN420
p
2
The skating force is reduced by approximately 1/3 in the case
of "wet" playing (playing records moistened with liquid).
The antiskating device is switched off when the pointer is set
to the left.
Dust cover Installation
Rotating the screws clockwise —
increases the spring pressure
Rotating the screws counterclockwise —
decreases the spring pressure
Connection to the AC supply
Connection to the amplifier
If your
stereo
amplifier or receiver
is equipped
with 5-pole
DIN
phono sockets, a special phono adapter (Dual Part Nr.
262 483) is required
for connection
of your turntable. This
adapter
cable
can
be obtained
as optional
accessory
from
authorized
Dual
dealers.
You may also have your turntable
modified at any Dual service center by installing the optional
phono cable with DIN-plug (Dual part Nr. 207303) as required.