Dual 522 User manual

Service
Manual
Technical data
Current
Line Voltage
Drive
Power
consumption
Starting Time
Power Consumption
Platter
Platter speeds
Pitch Control Variation
Speed
control monitoring
Sensitivity of the strobe for 0.1 %
speed deviation
Total VVow and Flutter
Rumble
(according to DIN
45
500)
Tonearm
Effective Length of Tonearm
Offset Angle
Tangential Tracking Error
Tonearm Bearing Friction
(related to stylus tip)
Stylus Pressure
Cartridges
VVeight
Measured values =
typical values.
Rumble and wow and flutter values obtained with test record.
AC 50 or 60 Hz, changeable by changing motor
pulley
115 or 230 V,
changeable
Dual 16 -pole synchronous motor: flat belt for flywheel drive
approx. 8
watts
(to each
nominal speed) approx. 2 seconds at 33 1/3 rpm
at 220
V, 50 Hz: approx.
75 mA
at 117 V, 60
Hz: approx. 140 mA
Non-magnetic, detachable, 1 kg,
304 mm 0
33
1/3 and 45
rpm
at
both platter
speeds
Adjustment range at 33 1/3 rpm approx. 1 semitone
(6%)
with
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.
DIN
± 0.07 %
WRMS
±
0.04
%
Unweighted 48 dB
Weighted
70 dB
Torsion-resistant
tubular aluminium tonearm in
four-point gimbal bearing
221 mm
24° 4'
0.16
0 /cm
vertical 0.07 mN
(0.007
g)
horizontal 0.15 mN (0.0159)
from 0 — 30 mN (0 —3 g) infinitely variable with 1 mN (1/109) calibrations
from 0 — 15
mN (0 — 1.5 g)
operable from 5
mN (0.59) stylus pressure up
with 1/2 inch
screw-type attachment. These can be fitted with the special
accessories
no. 262 186 which can
be obtained from trade
dealers.
4.1 kg
Dual
522
Edition
January
1980
•
Download from www.dual.de
Not for commerical use

Table
of
Contents
Page
1
Specification
3 Motor and
drive
3
Speed
selection
3
Turntable
3
Belt
3
To replace the
motor pulley
4
Stroboscope
4
Tuning to the
pitch-of-tone level
4
Tone
arm with
bearings
4
To remove tone arm complete
with bearings
5
To remove the
tonearm or the spring
housing
5
To adjust the tonearm
bearings
5
Fitting
1/2 inch pick -up
5
Anti-skating device
5
Tone
arm lift
5
To replace the lift
plate
5
Tone arm
control
6
The
starting sequence
6
Manual start
6
Continuous play
6
Mut ing
switch
6
Final
shutting-off
7
Stop
circuit
7
Adjustments
7
Tone
arm set-down
point
7
Set
-down point for 30
-cm records
7
Set
-down point for 17
-cm records
7
Shut-off
point
7
Tone
arm lift height
8
Troubleshooting
8
Tone arm
improperly lowered
8
Acoustic feedback
8
Rated
speed borders pitch
adjustment range
8
Turntable
does not start
8
Turntable speed
unsatisfactory
8 — 11
List
of spare
parts and
Exploded view
12
Lubrication
NOTE:
The item
numbers
mentioned
in the text refer
to the illu-
strations,
exploded
views
and
Parts
List.
Fig. 1 Audio
Connection
Diagram
Kontaktplatte
Contact plate
Plaque
de
contacts
rechter
Kanal Kurzschließer
Cynchstecker
DIN-Stecker 5-polig
right channel
Muting switch
phono plug
DIN-plug 5 pin
Canal droit
Court-circuiteur
flehe cynch
fiche DIN 5 pales
rot / red / rouge
/
I
I I
grun
/ green
/ vert
I
schwarz
/ black / negro
blau
/ blue /
bleu
(\
/ 1
I I
I I
I
I
weiß/ white / blanc
‘ i
linker Kanal
left
channel
Canal gauche
•
•
•
Masse draht
Mass lead
Mass cäble
2

tp.
Motor and Drive
Turntable
and mechanism are driven by the
motor 130. This
shaded-pole motor runs vibration-free in radially elastic mounts
and has extremely
low magnetic leakage.
The motor speed is independent of voltage,temperature,and load
variation. lt can only fluctuate with the mains frequency. Two
motor pulleys permitadaptation to the mains frequency of either
50 or 60 Hz; one pulley 116 is showin in both Fig. 2 and Fig. 3.
For
50 Hz use the pulley part no. 261
938,
for 60 Hz use the
pul ley part no. 261
939.
The driving force is transmitted to the turntable 14 by belt 17.
Speed Selection
To adjust
the
turntable speed to either 33
1/3
or 45
rpm, the belt
17
is shifted to the one
step of pulley 116
with the associated
diameter
(see Fig. 3). This is
achieved when you adjust
the speed
lever 20
so that the
START/STOP lever and the
spring lever will
move the change-over lever into
the desired (33 or 45 rpm)
Posi-
tion. When the record
player is turned
off,
, the
changeover
lever
is blocked
by the blocking bar
and the speed is just
preselected.
Only
when the
turntable 14
starts
running, the
blocking
bar 8
will release the
change-over lever. The
latter will then shift the
belt
17 to that step
of motor pulley
116 which
corresponds to
the desired
speed.
Platter
The platter is
secured to the securing disc 5 by the bayonet
catch. When removing the platter 14
press the securing disc
lightly downwards and turn it
approximately 60° to the right
until it is felt to dick out of
position.
Belt
To replace the belt 17,
first remove the turntable as above des-
cribed, then separate the belt from the turntable 14. Mount the
new belt on the
turntable.
NOTE: the ground (mat) surface of the belt should face the driven
part.
Install the
turntable and place the
belt 17 over the
motor
pulley 116.
To
Replace the
Motor
Pulley
1. Separate the belt 17
from pulley 116 and remove the turn-
table. Remove the toothed
belt 109.
2.
Disengage the tension spring 114 from
the shield 122.
3. Unscrew the hex. nut 111,
remove the setting cam 112,
belt pulley 113, and counter bearing 114.
4. Slacken the grub screws 117 and slide off the motor pulley
116. Slide the replacement pulley onto the
motor shaft.
Remove the taper sleeve. Pay
attention on the internal distan-
ce
spring. Position the motor pulley
116 at proper height
above the mounting plane, see Fig. 3.
Uniformly tighten the
grub screws 117. Put the'taper sleeve into the motor pulley
116.
5. Mount the counter bearing 114, the belt pulley 113 and
the
setting cam 112 and secure them
in place with hex. nut
111.
Install the tension spring 122 and the toothed belt
109.
Mount the turntable. Pull the belt 17 and place it around
the
motor pulley
116).
6. Turn the knob 18 to adjust the beit pulley to lts mid posi-
. tion. (The nose of the belt pulley 113 should point to the
motor pulley
center line.)
Adjust the hex. nut 111 to the
rated speed; the speed
increases when you turn the nut clock-
wise
and vice versa.
Fig. 2
1820
227,7ev
d r - i
• „
ma
Fig. 3
33%
U/min
45 U/min
Fig. 4
Strob
17
15,8mm
27
117
116
Strob
3

Fig. 6
Fig. 7
109
103
45
200
18 2
113
111
114
116
Stroboscope
Even
during the play
mode the
stroboscope can be
used to check
the
accuracy of the
turntable speed
adjustment to 33
1/3 and
45
rpm.
Accurate
adjustment is
manifested by seemingly
motionless bar
marks of the
stroboscope. If
the marks run
in the same
direction
as the
turntable, the speed
is too high
and vice versa.
To vary
the
adjustment,operate the
"pitch" knob 18. The
strobo
marks on the
turntable
rim, have the
following
meanings (starting
from
the
lowest
row): 33 1/3 rpm at 60
Hz, 33 1/3
rpm at 50 Hz.
To exchange
the glow lamp
GI 131,
remove the
screws 234
and the
strobo case.
Pitch
Control
This feature
is
independent of the
power and
controls both turn-
table
speed. The
tuning range is
max. 6 % or
about one
semi-
note.
When
you
rotate the
knob 18, you will move the belt pulley 2
105.
This motion will
be transferred
by the toothed
belt 109
to the
belt pulley 1
113. As a
result, the counter
bearing 114 and
taper
sleeve of motor
pulley 116
are shifted
upwards or down-
wards,
respectively.
The taper
sleeve of the
motor pulley
116
causes the
pulley
diameter to be
reduced or
increased, which
permits the
variation of
the rated
speed within
the said
range of
±
3 %.
Tone Arm with Bearings
The I ight-weight
torsion-resistant
aluminum-tube tone arm has a
62
universal
gimbal bearing
characterized by four
hardened and
lapped steel points
located in high-precision
ball bearings. The
tone -arm
bearing
friction is thus reduced to
a
minimum,
namely
less than 0,07 mN 0r0,007 gr in vertical and
less than 0,15 mN or 0,015 gr in horizontal
direction,
referred to the stylus po int.
This ensures
particuiarly satisfactory tracking
conditions. Before
adjusting
the tracking force,which
should comply with the pick -
67
up system used,
adjust the tone arm to its
balanced position while
the
tracking-force scale indicates zero.
The tracking
force is produced by tensioning the
helical spring
located in
the spring case 62. The rotary turn
knob 60 has a scale
201
with marks permitting exact adjustment of the tracking force
within the range 0-30 mN lor 0—
3 gr).
Z LI- N
209
202
60
To Remove the
tonearm complete with the
tonearm bearing
We
recommend the
following
procedure:
1. Secure the
unit in a repair stand.
Turn the rotary turn
switch
60 to the
zero position. Lock the
tonearm 38. Remove
the
counter-weight 55.
2.
Adjust record player to head
position. Remove the shield
160.
38
Unsolder the tone -arm leads from
muting switch.
3. Remove the main lever
177. Remove the lock
washer 242.
Rotate the set screw 26
until guide bearing
241 and setting
ting
bar 228 come free. Remove
lock washer 228 and
setting
bar
204.
4.
Unlock the tension
spring 212,
loosen the lock
washer 216 and
remove
skating lever 215.
5. Remove lock washer 202 from segment
200.
6.
Remove hex. nuts 209 and
the screw 202. Remove
the bearing
200
201 and the
segment 200.
7. Grip the frame 44 and the
tonearm 38. Loosen the machine
screw 45 and take off
the tonearm and frame.
Reassembly of the tonearm
involves the reverse procedure. Take
care that the grub screw 43
is correctly seated in the
bearing when
when fastening the frame 44.
4

Fig.
10
To
Remove the tonearm
or the spring
housing
1. Secure the unit
in a repair stand.
Turn the rotary turn
switch
60 to the zero
position. Lock the
tonearm 38. Remove the
counterweight 55.
2.
Turn the
unit
cover.
Remove the screening
sheet 160 and
solder off the
tonearm connections
at the muting
switch.
Turn the unit
the right way
up.
3.
Remove the fillister head
screw 61. Remove the
rotary turn
switch 60 and the
washer 59.
4.
Loosen the nut 56 and the grub
screw 57. Draw
the tone -
arm 38
complete with bearing 63
from the bearing race
58. The spring
housing 62 or the tonearm 37
may now be
changed.
Reassembly
involves the reverse
procedure.
To
Adjust
the Tone
Arm
Bearings
Exactly
balance
the tone
arm.
Both
bearings
should
have a
small,
just
perceptible
backlash
or
play.
Proper
adjustment
of the
hori-
zontal
bearing
is
achieved if
the tone
arm
can
freely slide
from
the
record
inside to
outside
while
the
anti-skating
adjustment is
0.5.
Proper
adjustment of
the vertical
bearing is
achieved
when
the
carefully
kicked tone
arm
swings into
balanced
position.
Adjust
the
backlash
by
grub screws
43
and 57
for the
horizontal and
vertical
bearing,
respectively.
Fitting a 1/2 inch
cartridge
If a
cartridge with 1/2
inch standard
mount is
to be
fitted, the
conversion kit Number
262 186
is
necessary.
The
proper
method
of
fitting is shown
in fig. .
Also the
decorative
cover
should be
removed from
the
counter-
weight 55 and
should be
fitted
with the
compensatory weight
to
be found in
the conversion
kit 41.
Coarse
adjustment
is carried
out by
moving the
weight
with stem
38
subsequent
fine
adjustment by
turning
the front
knurled
ring
on the
weight.
Anti-Skating
Device
To
adjust the
anti-skating
force,
operate the
pointer
scale
provided
on the
cover 69. Depending on
this
adjustment, the
skating lever
215 will be
deflected from the
tonearm pivot
point.
The
anti-
skating force is
transmitted
by the
tension
spring 212
to
the seg-
ment 200 and thus to
the tonearm 37.
The
factory
adjustment is optimal
for any stylus
having a
spherical
tip radius of
15 pm or elliptical
of 5
-6
and 18
-22
lim.
These factory-adjusted values
may be
varied
only in
an
authorized
Dual
service
workshop using a
Dual
Skate -0 -Meter and
a test
record.
Tone Arm
Lift
When you
move the lift control
bar 218 to the LIFT
position 1,
the tone arm will be
lifted and in
position LOWER
1
it
will be
lowered
through the lift
cam 219 and the
setting bar 204.
The
tone arm lift
has priority over
the set-down
mechanism. When the
record
player is started with the
control bar 218 in
the LIFT posi-
tion V
, the set-down
mechanism will move
the tonearm across
the record in
the auto mode.
Lowering of the tonearm
will take
place only after you
have adjusted the control
bar 218 to the
POWER
position 1.
The height of lift should
be 3 to 5 mm; it can be adjusted
by the
setscrew 26.
To Replace the Lift Plate 158
1. Remove the main lever 177 and the lock washer 242. Rotate
the
setscrew 26 until guide bearing 241 and setting bar 204 are
released. Remove lock washer 228 and setting bar 204.
2. Unlook the tension spring
212.
3. Remove lock washer 206 and
disk 205. Detach the shut-off
bar
179 from segment
200.
4. Remove hex. nuts 202
and the screw 202. Remove the segment
200 and the bearing 201.
5. Remove the screws 198 and the lift plate 199.
To reassemble, proced in reversed
order.
Fig. 11
204
242
241
179
206
s\L\
215
212
173 177 200 199
201 203 202
Tone
Arm Control
The tonearm
motions for auto lowering
and lifting are
controlled
by
cams under the cam
wheel 161 while the
wheel rotates through
360 °
Lifting
and lowering
motions are
controlled by the main
lever 177
and
lifting bolt
while the
horizontal motions of
the tonearm are
controlled by lever
177 with the
segment
200.
The
lifting/lowering mechanism is
active for 30
cm- and 17
cm-re-
cords,
it is coupled to
the turntable-speed
change-over
function.
The
tonearm
set-down points are
determined by
the spring pin
of
segment 200
abutting against
the setting bar
204. The
horizontal
motion is
limited by the
segment abutting
against the
setting bar
204 which is
lifted only
during the set-down
operation by
the
main
lever 177 and
thus comes
into the sluing
range of the
spring
pin
provided on the
segment.
5

After the
tonearm has been set down on the record, the setting
bar 204 is
released and returns to its normal position, thus esca-
ping
from the range of the spring pin. The tonearm is thus free to
move in horizontal
direction during the play-back.
The Starting
Sequence
When you adjust the
START/STOP lever to the START position,
the turn-on lever 207 is rotated
to the outside and will trigger
the
following
functions:
a) The turn-on lever 207
rotates the shift links 189 seated on the
riffled pins 183.
At the same time, the power switch is turned
on 135 and both the motor 130
and turntable start rotating.
b) The shift link
189 enters the range of the reversing lever
vvhich
is forced
into
its
start
position
by the subsequent
rotation
of
the cam
wheel 161.
c)
Operation
of
the START/STOP
lever 50 will also
release the
start angle 187 that is pulled towards
the cam wheel by the
tension spring 188. The
shut-off lever is thus brought into the
range of
dog M on
the
turntable pinion (PR)
and
the cam
wheel is driven.
Manual Start
When the
tonearm
is guided
towards the record
manually, the
pawl 236 coupled to the shift arm 165 will engage
with the
square bolt mounted in the
deck plate and will keep the shift
arm
in this
position. Coupled to the shift
arm is the shut-off lever
168 that
will turn on the
power switch and thus initiate
the turn-
table
rotation. When
the run-out groove of the record played has
been
reached, the tonearm is
restored and the record player
is
turned off by automatic
means. If you lift the
tonearm before
the end
of play
and
put it back onto its
support, the bolt of seg-
ment
200 will release
the engaged position of the
pawl 236 so
that
the
shift arm is
returned
to its initial position and the power
switch will
tum off.
Continuous Play
This mode is
operative when you have
adjusted the knob 66 to
co . The knob 66
will rotate the reversing angle
231 and the latter
is
forced into the starting
postion by the turn-on
lever 207 at the
end of
record, the
tonearm
is restored to its rest position
on the
support near
the
record
rim. This procedure will be repeated unti I
the
START/STOP lever 50 is
adjusted to STOP or the knob
66 is
adjusted to
no. 1
position.
Muting
Switch
The
muting
switch is provided to avoid
noisy lifting and
lowering
of
the tonearm in the auto
made. The contact springs of
both
channels
are controlled by the cam
wheel. The resulting short-cir-
cuiting of the
pickup leads is ineffective in the rest
state of the
record player.
Adjustment
In the zero
position of the cam
wheel,
a contact
separation
of
about 0.5 mm should exist
between the contact
springs
(F) and
the shorting
straps (L) in
Fig. 14. If
necessary, bend the
shorting
straps. Maintain
contact springs in good state
by a
spraying
agent.
Final Shutting-off
The
shutting-off and
stop functions
are
controlled by the
reversing
lever U. Lever U is
brought
into
the
stop
position
by
the main
lever
177 (longer
leg of the
reversing lever
towards the cam
wheel
center). The
shut-off bar 179 is
dragged
during
the play in
propor-
tion to the
motion of
segment 200.
The
shutting-off Operation
after the end of record is triggered by
the dog
(M)
of
the
turntable
7 and by
the
shut-off lever
(A).
Fig.
12
Fig.
13
231 225 204
Fig. 14
191 207
186
204 179
6

In the shut-off
range for records 116 — 122 mm in diameter, the
shut-off lever (A) approaches
the dog under control of the shut-
off bar 179. The dog IM)
engages with lever (A), which will displa-
ce the cam wheel 161 from
its zero position and make lt
engage
with the pinion (PR) The main
lever 177 returns the
tonearm
that can then
lower itself on its
support.
When
the cam wheel runs
up to its
zero-engagement position, the
nose 186 of
the shift arm can run
into the recess left in
the cam
wheel
and operate
the power
switch 135.
Stop
Circuit
Wen
you
adjust the
lever 50 to STOP, the start
angle 187 is
released and
pulled towards the cam wheel by
tension spring 188.
As a result,
the shut-off lever is brought within the
range of the
dog
(M) on the pinion (PR) of the
turntable and the cam wheel
161 becomes driven.
The reversing lever
remains in its stop
position.
Adjustments
Tone Arm Set -down Point
Slightly
prey up the
nameplate „Dual" at its
lower left corner
and swivel it outwards
(Fig.
161. The now
accessible opening
will
show one of the
adjusting screws.
Set -down Point
for 30 -cm Records
Adjust the
speed selector
20 to the "45"
position and
correct
adjustment with a
screwdriver. If
the stylus sets
down too fa .
r
on the
record inside, rotate the
adjusting screw
clockwise. If the
stylus is lowered
outside the 30
cm-record, rotate the screw
counter-clockwise.
Set -down Point for 17
-cm Records
Adjust the
speed selector 20 to the "33"
position
and rotate
the
screw as above described for adjustment.
Shut-off Point
In the
shutting-off range
for records 116 —
122 mm in
diameter,
the excenter IS) on
segment 200 can
be used to vary the
shut-
off
point.
Tone Arm Lift
Height
This
height of the auto mode can be adjusted with the aid of
the setting sleeve 197. Pull
the mains plug. Disengage the tone
arm.
Rotate the cam wheel 161
out of its zero
position
until
the tone arm has reached its greatest lift height.
The
height
above
the tone arm support stop
should be about
8 mm as shown in Fig. 18. If necessary, rotate the setting
sleeve
197 clockwise or
anticlockwise as required.
Fig.
15
Fig. 16
Fig. 17
Fig.
18
52
7

Defect
Cause
Repair
Tone arm
improperly
lovvered
(too fast or
not on
record) .
Acoustic Feedback
Rated speed borders pitch
adjustment
range.
Turntable does not start.
Turntable speed unsatisfac-
tory.
Replacement parts
Shock-absorbing
action of
silicone oil in lift
tube is ex-
cessive or
insufficient.
a) Chassis parts
(e.g.
connecting
leads) hit
bench cutout.
b) Connecting
leads are strained.
Positioning of belt pul
ley is
inaccurate.
a( Belt is
not in place.
b) Motor
is not powered.
c)
Motor pul ley has come
loose.
a) Motor
pulley does
not
comply
with mains
frequency.
b) Belt
Sl ips on motor
pul ley or
turntable.
c)
Excessive
bearing
friction.
Pos.
Part.-No.
Qty
Description
3
220
213
1
Centering
piece
5
263
395 1
Lock
washer
complete
6
261
914 1
Mount
complete
7 248
346
1
Pressure
spring
8 261
916
1
Locking
rau l
compl .
8
264
027 1
Locking rau l
compl.
9
249
171 1
Tension spring
10 248
347
1
Tension
spring
11
260 157
1 Stop
12
263 396 1
Platter mat
13
248
893 1
Spring
washer
14
263
398 1
Platter
complete
15 200
543
1 Snap
spring
16 263 399
1
Fly
vvheel
rotor
complete
17
261 921
1
Flat
belt
18
260 461
1
Regulating
knob
19
232 078
1
Bearing
bush
20
260 297
1
Speed
lever
21
263 378
1
Speed
cover
22 213
260 4
Grooved
drive stud
23 210
194 1
Grip ring
24 210
472 1
Machine screw
25 234 599
1 Reset
cam
26 240
069 1
Adjusting screw
27 263 400
1
Mounting plate
complete
30
237 228 3
Spring
suspension
234
433 1
Spring suspension
(motor
side)
31
230 529
1
Threaded coupling
32
236 712 3
Pressure spring
232 843 1 Pressure spring
(motor
side)
33 200 723
4 Rubber absorber
34 200
722 4 Casing
Demount the l ift plate 199, remove the control stud 195, lock
washer
196, and setting sleeve 197 vvith lock washer; remove
l ift holt
and pressure spring, clean lift tube and
lift holt. Evenly
apply WACKER SILICONE OIL AK 500 000 to the lift bolt.
Reassemble the
parts.
a) Align cutout by
installation instructions.
b) Loosen or extend
the cables. .
Adjust knob 18 to mid position; adjust hex. nut 111 to rated
speed (clockvvise adjustment will increase the speed and vice versa).
a) Mount
the belt.
b) Check svvitch
base and mains plug.
c)
Tighten it.
a)
Exchange it.
b) Clean al l contacting surfaces
of belt and pulleys, if necessary
replace the belt.
cl Clean and
relubricate the bearings.
Pos.
Part.-No.
Qty
Description
35 239 414
3 Transport lock
36 260
428 1 Clamping
37 263 262 1 Tonearm complete
38
263 401 1 Weight
complete
39 263 259 1
Tonearm head complete
40 261 929 1 Tonearm lead
41
262 186 1 1/2
inch conversion kit
complete
42
249
383 1
Counter nut
43 234 651 1 Grub screw
44 261 979 1
Frame complete
45 242 677 1 Machine screw
M 4 x
8
48 236 069 1 Machine screw
49
248 979 1 Lifting plate
50
260 298 1 Switch lever
51 260 328 1 Stroboscope prism
52 263 408 1 Tonearm rest
complete
56 246 884
1 Cionter nut
57 234 634 1 Grub screw
58 261 981 1 Bearing race complete
59 261 798 1
Washer
5,2/10
60 248 989 1
Rotary knob
61 249 097 1 Raised countersunk head screw M
2,5 x 12
62 263 331 1 Spring housing complete
63 263 330 1 Bearing complete
64
210 597 1 Washer
65 262 294 1 Screw
66 260
334 1 Rotary knob
67 263 407 1 Rear cover
68 200 444
7 Spring washer
69 260 320 1 Cam disc
70 242 298 1 Washer
71 228 113 1
Washer
4,2/8/1
8

Fig. 19
Exploded view 1
ciD
•
//
/
9

Fig. 20
Exploded
view 2
'etw
10

Pos.
Part.-No. Qty
Description
72 210 146
1 Lock
washer
3,2
73 263
406 1
Font cover
complete
100 260
537 1
Connection part
101 232 079 1 Shouldered nut
102 232
097 1 Belt wheel
103 240 035 1 Washer
104 210 607 1 Washer
3,2/10/0,5
105 210 362 1 Hex nut
M3
106 260 570 1 Clip
spring
107 210
196 1
Grip
ring
108
260 475 1 Switch lever
109 260 309 1 Toot hed belt
110
210 607 3
Washer 32/10/0,5
111 244 104 1 Hex nut
112 241 641 1 Control
curve
113 241 642 1 Belt
wheel 1
114
248 508 1
Conter
bearing
115 232 615 1 Presure
spring
116
261 938 1 Motor pulley
50
Hz
261 939 1
Motor pulley
60
Hz
117 233 137 1 Grub screw
118
247 920 1 Earth bracket
119 210 145 3 Lock washer
120 210 609 3 Washer
121 249
182 3 Damping
sleeve
122 233 777 1 Tension spring
123 261 121 1 Motor plate
124 248 335
2 Machine screw
125 261
944 1 Stator
110/200
V
kpl.
261 946 1 Stator 110/220
V kpl .
Ul/CSA
126 261 945 1 Armature
with
bearing
complete
127 222 200 2 Hex nut
M3,5
128 209 939 1 Rubber bush
129 247 858 1 Screening plate
130 261
961 1 Motor SM
100-1
compl .
131 260 421 1 Glow lamp
132
249
092 1
Switch plate
133
263 336 1
Stroboscope
housing
complete
134 210 469 1 Machine screw
135 260 137 1 Housing
136 261 965 1 Switch plate
137 262 272 1 Power switch
C 1 241 646 1
10
nF/250 V/20 %
C 2 249 352
1 0,33
biF/250
V/10 %
C 3 230 355 1
68
nF/250 V/20 %
R 1
249 354 1
5,1
k2/5
W/5 %
L 1 242 822 1 RF cooke
47 /IH
138
248 881 1 Cover
139 210
491 1 Machine screw
157 236 402 1 Muting switch
158
239
562 1
Soldering lug
159 210 472 2 Machine screw
160
232 084 1 Screen sheet
161 236 912 1
Cam wheel complete
162 210 366 1 Hex nut
163 218 155 2 Hex screw
164 263 405 1
Bearing bridge complete
165 234 542 1 Switch arm
166 248 878 1 Switch lever
167
260 363 1
Tension spring
168
260
387 1
Switch off lever
169 229 686 1 Tension
spring
170 210 145 1 Lock washer
2,3
171
234 592 1 Connection rod
172
210
587 1 Washer
3,2/7/1
173
234
677 1
Bearing bracket
174
210 667 1
Washer
5,3/10/0,5
175
234
676 1
Screvv bolt
176
210
147 1 Lock
washer
4
177
236 914 1
Main lever
178 211 718
1 Ball § 3
179
234
668
1 Stop rail
180 234 558
2 Ball bed
181
210
472 2 Machine screw
M 3 x 4
Pos.
Part.-No. Qty
Description
182
210 362 1
Hex nut M3
183 234 544 1
Groove bolt
184
210 586 1 Washer
3,2
185
236 950 1 Stop
bush
186 239 931 1 Roller
187 234 545
1 Start angle
188
229 698 1 Tension spring
189 244 784
1 Switch
crank
190
262 025 1
Switch over lever
191
234 598 1
Connection rod
192 210 146
1 Lock
washer
3,2
195 216 844
1 Control
nipple stud
196
210
143 3
Lock washer
1,5
197
218 318 1
Adjustable
adapter
198 210
472 2
Machine screw M 3 x 4
199
263 402 1
Lift plate complete
200
263
403
1
Segment
201 242 615
1
Counter bearing
202 203 475
1 Counter sunk
screw
M 3 x 8
203 223 777 1
Control nipple
stud
204
240 060 1
Slide rail
205
201
187 1 Sl iding washer
206 210
145 4
Loch washer
2,3
207
244 709 1 Switch on
lever
208 210 641 1
Washer
4,2/10/1
209 210 362
1 Hex nut
M3
210
234 548 1
Roller
211 210
143 3
Lock
washer
1,5
212 218 591 1 Tension
spring
213 201 184 1 Adjusting
washer
214 242 298 1 Washer
215 244 331
1 Skating lever
216 210 146 1 Lock
washer
3,2
217 237 543 1 Rubber bush
218 237 541 1 Grip
rod complete
219 240 063 1 Lifting piece
220 210 353 1 Hex nut
221 240 066 1 Bearing plate
222 210 469 1
Machine screw
223 234 674 1 Brahing piece
224 210 587 1 Washer
225 234 588 1 Adjusting lever
226 230 087 1 Screw bolt
227 210 146 3
Lock washer
3,2
228 210
145 4 Lock washer
2,3
229 210 586 1 Washer
230 232 545 1 Leaf spring
231 234 593 1 Reversing angle
232 203 477
1 Washer
233 210 353 1
Hex nut
234 232
599 1 Latch
235 210
146 3 Lock washer
236 239 915 1 Square plate
237 210 472 1 Machine screw
238 210 586 1 Washer
239 245
247 1 Screvv bolt
240 239 810
1 Locking spring
241 229 362 1
Guide bearing
242 210
145 4 Lock
washer 2,3
249 209 436
3 Tab receptable
250
209 424 1 5 -pole plug
251 207 303 1
Phono pick up cable complete
252
207 301 1
Phono pick up cable
(cynch)
253 209 425
1 Cynch plug
vvhite
254
209 426 1 Cynch
plug black
255
214 602 2
AMP-receptable
256 232
996 1 Mains
lead Europe
257 232 995
1 Mains lead
USA
258
231 079 1
Cable clamp
261 952 1 CK
28 vvalnut
console
261 953 1 CK
28 agale bleck console
261 954 1 CK
28 agale brown console
227
986 1 CH 6 cover
261 140
1 Operating
instructions
262 000 1
Operating instructions
UAP
260 491 1
Shipping carton
CS
11
Subject
to change!

Fig. 21
Lubrication
Al
bearing and friction
points of
the
unit are adequately
lubricated
at the works.
Replenishment
of oll
and
grease is only necessary after
approximately
2 years of normal
use of the record player as the
most important bearing points
(motor
bearings)
have sintered me-
tal
bushes.
Bearing points and friction
faces
should be lubricated sparingly
rather than generously.
lt is important
that no oil grease
should come in contact with the
friction faces of the flat belt,
drive pulley and flywheel rotor,
otherwise slip will
occur.
When
using
different
lubricants,
chemical decomposition can
of-
ten take place. To prevent lubri-
cation failure we recommend us-
ing the original lubricants
stated
below.
Fig.
22
Wacker
Siliconeoil
AK 300 000
Renotac
adhesive
oil
No.
343
BP
Super
Viscostatic
10
W/40
Shell
Alvania No. 2
Isoflex
PDP
40
••••••
Dual Gebrüder
Steidinger •
7742 St.
Georgen/Schwarzwald
_
920
650-2 5.2/0180
Printed in Germany
by Dual