Dual CS 550 Operating Instructions Manual

CS 550
HiFi

Bedienungsanleitung

Operating Instructions

Notice d‘emploi

Zubehör / accessories / accessoires

Fig. 12
RCA(Chinch)-Kabel

RCA(Chinch)-cables
RCA(Chinch)-câbles

Fig. 13
Masse / Erdleitung

Earth wire
Cosse de masse

Fig. 14
Steckernetzgerät

Power supply
L‘adapteur secteur

Fig. 15
Ausgleichsscheibe / Inbusschlüssel

Shim / Allen key
Rondelle / clé Allen

3

Fig. 1

Fig. 6

Fig. 2

Fig. 3 Fig. 4 Fig. 5

ACHTUNG: Um Brandgefahr oder elektrische Schäden vorzubeugen, darf das Gerät nicht Feuchtigkeit oder Regen ausgesetzt
werden.

WARNING: To prevent fire or schock hazard, do not expose this product to rain or moisture.
ATTENTION: Pour éviter les incendies ou les dommages électriques, l‘unité ne doit pas être exposé à l‘humidité ou à la pluie.

L

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E N G L I S H

1. Cover

2. Hinge

3. Tone arme counter weight

4. Scale for setting tone arm tracking force

5. Lift lever

6. Tone arm support with tone arm lock

7. Speed selector – ON / OFF

8. Head shell kocking nut

9. Securing screw for headshell

10. Antiskating setting

12. Audio Cinch plugs connection

13. Ground connection

14. Connection socket for mains adapter 12 V/DC

Preliminary operations

Unpack the unit and all accessories. Please keep the packaging
for future use when transporting the device.

− Fit the platter and depress the locking mechanism in its
centre until it engages in the groove of the platter spindle
(Fig. 1). Place the platter mat in position.

− Insert the hinges 2 in the appropriate recesses (Fig. 2)

− Slide the cover 1 parallel to the position of the hinges 2
(opening angle approximately 60°) until it locks in position.
In this position, the cover can be removed at any time.

Supply of the mains set

The delivered mains set (Fig. 14) will be connected to the so­cket 14. The mains set, corresponding to the voltage indication
on the nameplate, has to be plugged into a power supply plug
either with 230 V / 50 Hz or 115 V / 60 Hz on the primary side.

Connection to amplifier or receiver

– Connect the audio cables (Fig. 12) to the phono-mag-

netic-inputs of the amplifier or receiver 12 (red or black
RCA-type plug = right channel, white RCA-type plug = left
channel).

– Connect one side of the earth wire (Fig. 13) on the ground

socket on the device 13 and the other end to the amplifier..

Balancing the tonearm and setting the tracking and

antiskating force – for example cartridge OM 10

1. Remove the needle protector

2. Set tracking force 4 to 0 and switch off the antiskating
device 10.

3. Turn the counterbalance 3 on the tonearm (Fig. 3). Unlock
the tonearm and move it over the tonearm rest. Move the lift
lever 5 to the rear. Hold the tonearm whilst doing so.

4. Balance the tonearm precisely by turning the counterbalan­ce. The tonearm is balanced precisely when it pivots freely.

5. Set the required tracking force for the cartridge by turning
the dial 4. The tracking force for cartridges OM 10 = 15 mN
= dial position 1.5.

Set the appropriate value of the antiskating device 10 on the
basis of the following table:

Tracking force Antiskating setting 10

Tracking force scale 4

1 = 10 mN 1,25

1.25 = 12.5 mN 1.25

OM 10 -> 1,5 = 15 mN 1.52
2 = 20 mN 2,25

2.5 = 25 mN 2.52

3 = 30 mN 3,25

Height adjustment of tone arm

The entire tone arm assembly can be adjustet in height by
removing the three screws on the bottom of the turntable.
Now you can lift the tone arm from the top carefully.

Cartridges with standard half-inch mounting holes and a weight
between 3 and 10 grams can be installed

Change of headshell

− Remove the coloured signal leads carefully from the cartrid­ge pins with a pair of tweezers (Fig. 4).

− Loosen the collar-lock 8 behind the head shell. Carefully
pull the coloured signal leads out of the head shell (Fig. 4).
Install the new head shell in reverse order. Pay attention to
the correct colour coding.

R = Red, right channel
RG = Green, right channel ground
L = White, left channel
LG = Blue, left channel ground

Adjusting after change of pick-up cartridge system

For the precise adjustment of the so-called stylus overhang
push the supplied mounting gauge into the head shell with
cartridge. The adjustment is correct if the stylus flush with the
V-shaped recess in the gauge as viewed from above. When
viewed from the side the stylus should be seen within the
rectangular recess of the gauge (Fig. 6). Adjust the cartridge in
the head shell until the correct positions are achieved. Lastly,
tighten the mounting srews, put the head shell with cartridge
back on the tonearm and tighten the collar-lock 8.

ATTENTION!

During these mounting and adjustment procedures you must
be very careful not to damage the delicate stylus and cantilever
by uncontrolled and brisk movements.

Stylus

The stylus is subjected to natural wear and tear during playing.
We therefore recommend regular checks, which should be
carried out after at least 300 playing hours in the case of
diamond-tipped styli. Worn out or damaged (chipped) styli
damage records. In the event of a replacement being neces­sary, use original styli. Other styli often cause audible reduc­tions in quality and increased wear to records. Remove the
stylus. To fit a new stylus in follow the procedure in reverse
order.

Attention: the tonearm cables should not be tensioned or
overstreched!
Insert as needed one, two or three of the accompanying shims
(Fig. 15) congruently over the three holes.
Then fix the tone arm back with the three screws.

Manuel start, speed selection 33/45, tone arm lift

With the speed selector 7, the corresponding speeds 33/45 can
be set.
With this button, the device is also started.

– Remove stylus cover forwards and move lift lever 5 forward.
– Now position the tone arm over lead-in groove of the record

and push the lift lever 5 back. The tone arm is now lowered
slowly, thus preventing damage to your records.

– The tone arm can be raised at any position, also for brief in-

terruptions when playing. For this, slide the lift lever forward.
The platter continues to rotate in this case.

Switch off

When the record is played completely, slide the lift lever for­ward. The tone arm is raised.
Now, run back the tone arm by hand on the arm rest 6 and slide
the lift lever 5 to the rear.
If the speed selector 7 is turned to „0“, the device is switched
off.

Mounting or exchanging a pick-up cartridge system

Change of cartridge system

− Remove the coloured signal leads carefully from the cartrid­ge pins with a pair of tweezers (Fig. 4).

− Unscrew the cartridge.

− Screw the new cartridge onto the had shell but do not tigh­ten. Attach the leads to the pins while observing the correct
coding.

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Technische Daten

Meßwerte = typische Werte

Technical data

Measured values = typical values

Caractéristiques
techniques

valeurs mesurées = valeurs typiques

Riemenantrieb

elektronisch geregelter Gleich­strommotor

Belt Drive

electronic-controlled DC motor

Entraînement à courroie

moteur à courant continu reglè par
électronique

Netzspannung

(Steckdosen-Netzgerät)

Mains voltage

(mains set)

Tensions secteur

(adapteur secteur)

100 – 240 V

Netzfrequenz Line frequency Fréquence secteur

50/60 Hz

Leistungsaufnahme Power requirement Concommation

1,5 W

Plattenteller-Drehzahlen

U/Min

Platter speeds

rpm

Vitesses du plateau

tr/mn

33, 45

Gleichlaufschwankungen

DIN

Wow and Flutter

DIN

Tolérance de vitesse

DIN

Ve

± 0,05 %

Störspannungsabstand

(DIN 45500)
Rumpel-Fremdspannungs­abstand
Rumpel-Geräuschspannungs­abstand

Signal-to-noise ratio

(DIN 45500)
Rumpel unweighted signal-to­noise ration
Rumpel weighted signal-to-noise
ratio

Rapport signal/bruit

(DIN 45500)
Signal/tension extérieure de
ronflement
Signal/tension perturbatrice de
ronflement

ore

48 dB

72 dB

Effektive Tonarmlänge Effective tonearm lenght Longeur efficace du bras

218 mm

Kröpfungswinkel Offset angle Angle de coude

26°

Überhang Overhang Excédent

19,5 mm

Tangentialer
Spurfehlerwinkel

Tangential tracking error Angle tangentiel de

I’erreur de piste

0,15°/cm Rad.

Abmessungen

(B x H x T) mm

Dimensions

(W x H x D) mm

Dimensions

(L x H x P) mm

440 x 135 x 370

Gewicht Weight Poids

8,3 kg

Änderungen
vorbehalten

Subject to modifications Sous réserve de

modifications

DUAL Phono GmbH

Feldbergstr. 11
78112 St. Georgen
Tel. [phone]
Fax [phone]
www.dual-phono.de
[e-mail]

C1251016