Dual 1009 SK Service Manual

Page 1

Technical Data:

Current:

Llne voltage:

Drive:

Power coneumptlon:
Current requirements:
Turntable speeds:
Turntable:

Wow and Flutter:
Rumble:
Slgnal-tmNoise Ratio:
Toneann:

Plcltup cattrldge:
Weight:

Dimensions and Mounting Cutouts:

In accordance with DIN 45500

First Edltlon E 9 SK

Alternating. 50 or 60 cycle. With appropriate motor pulleys

selector for no or 220 volts (see schematic P. 4)

low-pole. single-phase. induction molar

6.5 watts approximately

50 mn maximum at 220 V. 50 cycle: 90 me. maximum at 117 V. 60 cycle

78. 45. 333"; and 167/; r.p.m.

non-magnetic, 4 lb.. Hl-Fl turntable

Less than t 0.12%

less than 38 db below signal level '

less than 56 db below signal level '

balanced on all three axes. extremely low mass, and precision, fnction~lree suspension
(vertical and horizontal fnctlon bearing friction less than 0.05 gm)

tonearm 'Nl accept all cartridges with V, mounting and weighing from 1-12 gme.
ll lbs. without packing

sea lnetellation instructions

DUAL GEBRUDER STEIDINGER . 7742 ST.BEORGENISCHWARZWALD

V381 5/367 H

Printed In Germany

Page 2

Contents

Technical Data
Tonearm hook-up schematic

Motor and drive
Turntable does not turn when unit plugged In and Start button operated

Turntable does not come up to speed

Assembly noise
Tonearm and suspension

Tonearm anti-skating mechanism
Needle slides out of groove
Tonearm sets down beslde arm-rest (83)
Horizontal friction too great

Arm set-down not free

Tonearm movements

Tonearm set-down and lift

Tonearrn does not move onto record when dr0p cycle actuated
Tonearm lowers too quickly onto record when drop cycle actuated
Tonearm misses edge of record

Tonearm strikes record during change cycle

Start Cycle

Manual Operation

Stop switching

Record Drop

Shut-off

Shut-oil and change cycle

Tonearm returns to arm rest immediately after being manually placed on record
Turntable stops after automatic set-down of Tonearm

Tonearrn returns to Its rest after each record

Turntable does not turn in Manual position

Last record keeps repeating

Record drops after 'Stop". then Start' buttons are depressed
Records do not drop

Noise during change cycle. arm set-down and lift-off

No sound

Mutlng switch remains closed

Motor continues to run after tonearm returns to its rest
Turntable slows down as record drops

Acoustic feedback

Replacement parts and exploded view
Lubrication

10

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(commence

10
10
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12
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l3
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i3
14
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14-20
20-21

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man

8mm a

Fig 9 Tonearm guide mechanism

IT'T -'.' '13 t.. T'ill 234

Tonearm Movements

A gurde gr00ve located on the underside of the main cam
(150) controls automatic lift-off and set-down of the tonearm
as the main cam rotates 360.

Tonearm Lift

The tonearm lift permits the tonearm to be safely set down
at any desnrcd position of the record (except in the shut-off
area).

Pushing the lift handle towards the front, turns the drive
washer (229). This. in turn. moves the connecting lover (226).
main lever (204]. and lift screw (245) to raise the tonearm.

After swmging the tonearm to the desired spot of the record.

Fig. 10 Tonearm lift (tonearm raised)

-.._.._... -.. . .
I

llllllHlllhi .

ii'.
l
1)IJ

228

L? Tonearm ralsmg and lowering, as well as horizontal

is: mavements. are controlled by mam lever (204) and

'5" lift screw (245).

HR:

74; Setting the unit for playback of 7' 10' and 12

m records is accomplished by means of the watch
button (87. lg. 12) The settle-am aunt of the

"1 tonearm l5 determined by the eccentruc of the arm

Fl positioning slide (250) contacnng the record sue

.55 selector lever (247 lg. :3).

Horizontal movement ol the toneavm is limited by
the arm segment (238) striking the arm DCSIItOHing
slide (250). Dunng the change cycle. the mean
lever (204) relses the arm posmonmq shoe bringing
ll Wllllln reach of the spring stud (179). On compte-
tion of the change cycle (. e. set-down of the
tonearm on the record). the arm positimwg side is again
released and returns to its normal nos-tron l: thus moves
out of reach of the sprmg stud (I79) permitting the tonearm
hindrance

to m0ve horizontally Without while playing u

record.

the lift handle lS lightly tapped towards the rear. to release.
Thus freed, connecting lever and the leaf spring (190) of the
main lever (204) resume their normal posittons and the
tonearm lowers. The lowering of the tonearni is delayed by

silicone grease on the drive washer.

The set screw (R 8) permits needle height to be varied from
O to V," above the record. Turning to the right Increases. to

the left decreases. this distance.

'22? R5 22") 273 245

9th:

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Lubrication

All bearings and sliding points have been properly lubricated impedance that no oil or grease should get onto the frxction
during assembly. RO-Ubflcalon i5 nomnaliy not necessary for surfaces of the drive wheel. motor pulley or turntable. to
about two years since all important bearings are prowded avond slippage. For the same reason. avoid touching these
with Oil retainers and sintered bearings. parts.

Lubrication should be applied sparingly. It is of primary

Use the following lubricants:

{_1 Fine bearing oil. Shell Clavus 17. for motor bearings and aintered bearings.
Adhesive oil, Renotac. for turntable and drive wheel.

r l Moiycote paste G. where greater pressure or friction occur.

H Silicone rubber grease. for the drive washer of the tonearm lift.

8 Silicone grease.

A Thicker, non-gumming eil. Calypsol WIK 700, for other sliding and bearing points.

Fig. 22 Chassis. viewed from below

21