Dual 510 User manual
%Nur
Dual
September
1975
Edition
510
Service
Manual
Dual
Gebrüder
Steidinger
•
7742
St.GeorgenISchwarzwald
Download from www.dual.de
Not for commerical use
Fig.
1
Pick
—up
Connection
Diagram
"WM
right
channel
left
channel
F
-
t---
em)—
r---(
I
I
1
3
___1
----
A
red
1
r-
white
I
1
L
_C
m
m)—
,
_
L_ __J LJ
J
,
()
1
--
1
I I
connection
plate
L__
right
channel
red
Mass
right
channel
green
Mass
sheet
Contact
plate
at
tonearm
head
Record
ridg
hoPder
red
1
-- --
green
Cartridge
L
r
ih
i
1 1
1
__
f
p.
___
4
1
,
i
1 1
i
1
'
0 2
,..,
inner
side
of
groove
left
channel
Tonearm
audio
cable
a)
with
miniature
plug
5-pin
right
channel
red
lead
left
channel
white
lead
b)
with
phono
plug
i
I
'i
li
il
i
(
i
i—____
i
white
(
b
r
l
e
a
d
c
)
k
(yellow)
bleck
left
channel
white
Mass
left
channel
blue
white
blue
Tonearm
head
Spring
contacts
between
plug-in
cartridge
head
and
tonearm
outer
side
of
groove
right
channel
2
"gur
Contents
Page
Pick
-up
Connection
Diagram
2
Specification
3
Motor
and
Pulley
4
Replacement
of
Motor
Pu
Iley
4
Stroboscope
5
Pitch
Control
6
Nominal
speed
is
at
the
edge
of
the
control
range
of
the
pitch
control
6
Platter
does
not
run
after
the
line
voltage
cord
of
the
unit
has
been
plugged
into
the
receptacle
and
the
master
operating
switch
moved
to
„Start".
6
Platter
does
not
come
up
to
its
required
speed.
6
Pick
-up
head
not
parallel
to
platter
6
Tonearm
and
Tonearm
Bearing
7
Adjustment
of
Tonearm
Bearing
7
Anti-skating
Device
8
Stylus
skips
out
of
playing
groove
8
Vertical
tonearm
movement
shows
resistance
during
set
down
8
Tonearm
set-down
Mechanism
9
Cue
Control
9
Replacement
of
Lift
Tube
10
Tonearm
does
not
set
down
at
the
edge
of
the
record
10
Tonearm
does
not
set
down
on
record
after
operating
cue
control
10
Tonearm
lowers
onto
record
too
quickly
when
cue
control
is
operated
10
With
tracking
force
and
anti-skating
in
0-position
tonearm
moves
10
Motor
switches
off
when
tonearm
sets
down
on
rest
10
Acoustic
feedback
11
Starting
and
shut
off
11
Horizontal
tonearm
movement
shows
resistance
11
Replacement
Parts
with
Exploded
views
12-
16
Replacement
Parts,
Connection
plate
17
Replacement
Parts,
power
switch
17
Lubrication
18
Specification
Current
Type
AC
50,
60
Hz,
selected
by
exchanging
drive
pulley
Line
Voltages
110
—
130
volts,
220
—
240
volts
Motor
and
Drive
8-pole/synchronous
motor
with
belt
drive
system
Power
Consumption
approx.
10
watts
Current
Consumption
with
220
V
50
Hz
approx.
72
mA
with
110
V
60
Hz
approx.
135
mA
Platter
Non-magnetic,
chjnamically-balanced,
detachable,
1,3
kg,
300
mm
dia
Platter
Speeds
33
1/3
and
45
rpm
Pitch
Control
Range
of
adjustment
approx.
1
semitone
(6%)
at
33
1/3
rpm
Speed
Check
with
light
stroboscope
for
platter
speeds
of
33
1/3
rpm,
for
50
and
60
Hz
Overall
Speed
Variation
(assessed
in
accordance
with
DIN
45
507)
<
±
0.08
Signal-to-Noise
Ratio
Rumble
weighted
signal-to-noise
ratio
>
63
dB
(in
accordance
with
DIN
45
500)
Rumble
unweighted
signal-to-noise
ratio
>
42
dB
Tonearm
Torsion
resistant,
tubular
aluminum
tonearm
in
universal
four-point
gimbal
suspension
Tonearm
Bearing
Friction
vertical
<
0.007
p
(related
to
stylus
point)
horizontal
<
0.015
p
Pick
-up
Head
Detachable,
suitable
for
all
pick
-up
cartridges
with
Dual
catch
mounting
and
1/2"
mounting
and
a
deadweight
of
5.5
—
10
g
(including
mounting
material)
Tracking
Force
0
—
3
p
continuously
variable,
with
1/10
p
calibration
in
the
range
from
0—
1.5
p,
reliable
as
from
0.5
p
tracking
force
VVeight
approx.
4.3
kg
For
dimensions
and
cutout
refer
to
Installation
I
nstructions
3
Fig.
2
Motor
and
Drive
Motor
and
Pulley
103
14
12
109
116
113
4
Fig.
3
Fig.
4
8
11
10
Note:
The
position
numbers
indicated
refer
to
the
Replacement
Parts
List
and
exploded
views.
The
turntable
platter
and
the
gear
are
dri—
ven
by
an
eight—pols,
synchronous
(132)
mo—
tor
suspended
by
radially
located
elastic
mounts
and
having
a
very
small
stray
magne—
tic
field
as
well
as
little
vibration.
The
speed
of
the
motor
is
a
function
of
line
voltage,
temperature
and
load
variations.
Speed
is
dependent
on
and
proportional
to
line
frequency.
The
motor
is
adapted
to
50
or
60
Hz
power
line
frequencies
by
the
correct
choice
of
motor
pulley.
Pulley
for
50
Hz
Part.—No.
234
453
Pulley
for
60
Hz
Part.—No.
234
454
The
drive
is
linked
to
a
flywheel
rotor
be—
neath
the
platter
by
a
precision—ground
belt
(11).
When
replacing
the
flat
belt
(11)
be
sure
that
the
precision—ground
surface
of
the
belt
(dull
finish)
closely
contacts
pulley
(116)
and
the
flywheel
rotor.
Platter
speeds
of
33
1/3
and
45
rpm
are
ad—
justed
by
linking
the
flat
belt
(11)
to
the
corresponding
step
of
the
drive
pulley
(116)
(Fig.
3).
Corresponding
to
the
actuation
of
the
loft
speed
selector
(14)
the
changeover
lever
is
brought
to
the
appropriate
position
of
no—
minal
speeds
(33
or
45
rpm)
via
lever
(101).
When
the
unit
is
electrically
shut
off
the
changeover
lever
is
blocked
by
locking
bar
(4).
Consequently,
the
speed
is
only
prese—
lected.
After
switching
on
the
unit
and
tur—
ning
the
platter
(10)
the
disengages
the
changeover
lever,
thus
guiding
the
flat
belt
(11)
to
appropriate
step
of
the
pulley
(116).
Replacement
of
Motor
Pulley
1.
Remove
flat belt
(11)
from
motor
pulley
(116)
toothed
belt
(109)
from
toothed
belt
pulley
II
(105).
2.
Disengage
tension
spring
(114)
at
shield
(121).
3.
Undo
adjusting
nut
(110).
4.
Pull—off
the
counter
bearing
assembly
consisting
of
the
counter
bearing,
toothed
belt
pulley
I
(112),
stop
disk
(111)
and
toothed
belt
(109).
Attention:
Do
not
remove
stop
disk
(111)
from
toothed
belt
pulley
I.
For
correct
adjust—
ment
of
stop
disk
proceed
as
follows:
Turn
toothed
belt
pulley
I
(112)
with
toothed
belt
(11)
counterclockwise
until
it
stops
at
the
counter
bearing
(113).
Then
turn
quarter
to
half
turn
clockwise.
Place
stop
disk
(111)
such
that
the
nose
(N)
touches
the
stop
as
shown
in
Fig.
114.
5.
Loosen
set
screws
(114)
and
remove
motor
pulley
(116).
6.
Place
complete
replacement
motor
pulley
on
motor
axle.
Remove
conical
sleeve.
Be
careful
with
the
interior
distance
bush—
ing.
Adjust
motor
pulley
vertically
(see
Fig.
3)
and
tighten
set
screws
(117)
uni—
formly.
Place
conical
sleeve
into
the
Mo—
tor
pulley
(116).
7.
Mount
the
complete
bearing
assembly,
and
attach
flat
belt
(11),
toothed
belt
(109)
and
tension
spring.
Mount
adjusting
nut
(110).
4
b
fr
8.
Setting
of
nominal
speed
To
bring
stop
disk
(110)
into
center
po—
sition
turn
adjustment
knob
(12)
corres—
pondingly.
(The
nose
of
the
stop
disk
should
show
to
the
motor
pulley
center).
Adjust
nominal
speed
by
turning
adjusting
nut
(110)
counterclockwise
the
speed
is
reduced.
When
turning
it
clockwise
the
speed
is
increased.
Stroboscope
Accurate
setting
of
the
platter
speeds
33
1/3
rpm
can
be
checked
during
play
with
the
aid
of
the
stroboscope
device.
When
the
platter
(10)
is
rotating
at
exact—
ly
33
1/3
rpm
the
lines
of
the
stroboscope
appear
to
stand
still.
If
the
lines
of
the
stroboscope
move
in
the
direction
of
rota—
tion
of
the
platter,
the
platter
speed
is
too
high.
If
the
lines
move
backwards,
the
platter
is
rotating
more
slowly
than
the
no—
minal
speed.
Adjustment
is
carried
out
with
the
"pitch"
knob
(12).
Fixed
tremen!
Strobe
markings
for
51J
or
60
Hz
are
provided
on
the
platter
rim.
Defect
After
switching
the
unit
on
the
glow
lamp
(202)
of
the
stroboscope
does
not
COMB
on.
Cause
a)
Glow
lamp
(202)
defective
b)
Power
supply
interrupted
Remedy
a)
Renew
glow
lamp
(202).
In
the
case
of
glow
lamps
with
rad
spot,
ensure
that
the
red
spot
(anode)
faces
the
C
1
capacitor.
b)
Check
connections
at
power
pack,
check
components.
Fig.
5
Connection
of
field
coils
110-125V
220-240V
Fig.
6
Fig.
7
Stroboscope
(wiring
diagram)
Fig.
8
Complement
(conductors
side)
5
Fig.
9
105
14
12
109
112
111
110
116
113
Pitch
Cont
rol
Defete
Nominal
speed
is
at
the
edge
of
the
con—
tr.ol
range
of
the
pitch
control.
Platter
does
not
run
after
the
line
volta—
ge
card
of
the
unit
has
been
plugged
in
—
to
the
receptacle
and
the
master
operating
switch
moved
to
"start".
Platter
does
not
come
up
to
its
required
speed.
Fig.
10
Cause
Postition
of
toothed
belt
pulley
I
inac—
curate.
a)
b)
c)
Belt
not
properly
put
on
Power
supply
to
motor
interrupted
Drive
pulley
slackened
a)
Drive
pulley
is
not
correct
for
local
line
fre—
quency
b)
Slippage
between
flat
belt
and
drive
pulley
or
betueen
Fiat
belt
and
flywheel
ro—
tor
c)
Excessive
fric—
tion
in
motor
bearing
or
fly—
wheel
rotor
bear—
ing
assembly
The
unit
has
a
separately
adjustable
pitch
control
by
which
the
two
standard
speeds
33
1/3
and
45
rpm
can
be
varied
by
ap—
proximately
6
%
(1
semitone).
The
toothed
belt
pulley
I
(112)
is
moved
by
turning
adjustment
knob
(12).
Turning
move—
ment
is
transmitted
to
belt
pulley
I
(112)
by
means
of
the
toothed
belt
(109)
(Fig.
9)
thus
sliding
the
counter
bearing
(113)
and
the
tapered
bush
of
the
drive
pulley
(116)
downwards
or
upwards.
The
taper
bush
of
the
drive
pulley
(116)
is
designed
to
vary
the
diameter
of
the
drive
Pulley
(116)
thus
var—
ying
the
nominal
speed
with
the
tolerance
of
+
3
%.
Remedy
By
turning
fine
speed
adjustment
knob
(12)
move
stop
disk
(111)
to
its
center
position
(The
dog
of
the
stop
disk
should
face
the
center
of
the
drive
pulley).
Using
adjusting
nut
(110)
adjust
for
nominal
speed.
The
nominal
speed
is
incrassed
by
turning
the
adjusting
nut
clockwise
and
decreased
by
turning
the
set
screw
counterclickwise.
a)
Install
belt
properly
put
on
b)
Check
connection
at
switch
plata
and
power
supply
plug.
Retighten
drive
pulley
c)
a)
Renew
drive
pulley
b)
Clean
friction
surfaces
of
flat
belt,
drive
pulley
and
flywheel
rotor.
Renew
flat
belt
if
neccessary.
c)
Clean
and
oil
bearings
Defect
Pick
—up
head
not
parallel
to
platter.
Cause
The
pick
—up
head
has
been
moved
out
of
Po-
sition
on
the
tonearm
tube
during
transport.
Remedy
Remove
platter.
Using
a
screwdriver
slacken
screw
on
the
pick
—up
head
through
the
hole
provided
for
this
purpose
in
the
chassis
plata.
After
aligning
the
pick
—up
head
re—
tighten
screw.
6
Tonearm
and
Tonearm
Bearing
The
Dual
510
has
a
feather—light,
extremely
torsion—resistant
all—metal
tonearm
which
is
suspended
in
a
gimbal.
Suspension
is
by
means
of
4
hardened
and
precision
polished
steel
points
which
rest
in
precision
ball
bearings.
Tonearm
bearing
friction
is
thus
reduced
to
a
minimum.
Bearing
friction
vertical
g
0.07
mN
(0.007p)
Bearing
friction
horizontal
g
0,16
mN
(0.016p)
related
to
stylus
point
As
a
result,
it
ensures
extremely
favourab—
le
pick
—up
concitions.
The
pick
—up
head
is
removable.
Before
adjusting
the
pick
—up
for—
ce
to
suit
the
built—in
pick
—up
cartridge
the
tonearm
is
balanced
with
the
scale
set
to
0.
Coarse
adjustment
is
carried
out
by
moving
the
stem
(50),
the
subsequent-fine
adjustment
by
turning
the
knurled
ring
of
the
weight.
The
balance
weight
is
designed
so
that
pick
—
up
cartridges
with
a
deadweight
of
5.5
—
10
g
can
be
balanced.
The
pickup
cartridges
whose
type
of
mounting
conforms
with
the
in—
ternational
standard
1/2
inch
mounting
and
whose
deadweight
incl.
mounting
hardware
does
not
exceed
10
g.
The
tracking
force
is
adjusted
by
turning
the
graduated
spring
housing
(62)
and
thus
tensioning
or
relea—
sing
the
coil
spring
mounted
inside.
The
scale
is
provided
with
markings
(0
—
30
mN/0
—
3
p)
which
allow
precise
setting
of
tracking
force.
One
division
corresponds
to
1
mN
(0.1
p)
within
the
range
of
2
—
15
mN
(0.2
—
15
p).
15
—
30
mN
(1.5
—
3
p),
and
2,5
mN
(0.25
p)
To
change
the
tonearm
complete
with
tonearm
suspension
we
recommend
preceeding
am
fol—
lows:
1.
Secure
unit
in
repair
jig,
set
tracking
Farce
to
0,
and
arrest
tonearm.
2.
Move
unit
into
head
position
and
unsol—
der
tonearm
leads
at
the
connecting
plate.
3.
Remove
safety
washer
(197),
washer
(196),
and
bearing
(195).
Disengage
tension
spring
(226).
Undo
safety
washer
(231),
remove
bar
(194)
4.
Disengage
tension
spring,
undo
safety
washer
(210)
and
remove
skating
bevor
(207).
Be
careful
with
compression
spring
(208)
am
it
may
drop
out.
5.
After
removing
washer
(216)
and
sliding
washer
(217),
detach
shut—off
bar
(215)
from
segment
(211).
6.
Undo
hexagon
nuts
(213)
and
pull
off
seg—
ment
(211).
7.
Remove
hexagon
nut
(206),
then
with
draw
tonearm
complete
with
suspension.
When
inserting
the
tonearm
complete
with
suspension
proceed
in
reserve
order.
Make
sure
that
the
segment
(211)
is
properly
ad—
justed
when
mounting
it
(refer
to
page
11).
45
44
62
61
47
211
To
remove
the
tonearm
from
the
bearing
race
the
tracking
force
scale
should
first
be
set
to
zero
position
after
unsoldering
the
tonearm
bade.
Remove
balance
weight
(50),
tighten
the
two
mounting
screws
(55)
onto
the
stop
of
the
tonearm
tube.
Attention:
Observe
slide
mounting.
Slide
tonearm
rearwards
and
remove
it
from
the
bearing
race
(60).
When
inserting
pro—
ceed
in
reverse
order.
Adjustment
of
Tonearm
Bearing
Both
bearings
must
have
slight,
just
per—
teptible
play.
Adjustment
of
the
vertical
bearing
should
only
be
carried
out
by
means
of
the
left
mounting
screw
(grub
screw
56),
that
of
the
horizontal
bearing
by
means
of
grub
screw
(44).
The
horizontal
tonearm
bearing
is
correctly
adjusted
when
at
antiskating
setting
"0.5"
(tonearm
pre—
viously
balanced
exactly)
the
tonearm
slides
in
without
resistance.
Fig.
11
Tonearm
bearing
assembly
46
57
56
53
60
206
213
,
`MA
1111
zumna
«Er
aa
II
Fig.
12
Tonearm
bearing
assembly
(view
from
underneath)
ee.
7
Fig.
13
Anti—skating
force
Anti
-
Skat
ing
Device
a)
Anti-skating
force
0-set-
ting.
No
compensation
of
the
skating
force
ta-
kes
place
as
a
result
of
the
action
of
the
tension
spring
(214)
at
the
fuc-
rum
of
the
tonearm.
b)
Anti-skating
mechanism
set
to
"1.5"
on
the
scale
for
elliptical
styli.
Tone
-
arm
on
tonearm
rest.
The
tension
spring
(214)
produces
the
anti-skating
force
vvhich
is
transmit-
ted
to
the
tonearm
via
the
segment
(211).
The
compression
spring
presses
the
skating
lever
(207)
against
the
plate
cam
(65).
cl
As
"b"
but
tonearm
abo-
ve
platter.
Defeet
Stylus
slips
out
of'
playing
groove
Vertical
tonearm
mo—
vement
shows
resi—
stance
during
set—
down
215
194
214
65
208
Cause
a)
c
d)
e)
211
207
Tonearm
is
not
ba—
lanced
Tonearm
tracking
force
is
too
low
Anti—skating
set—
ting incorrect
Stylus
tip
vorn
or
chipped
Excessive
bearing
friction in
tone
—
arm
bearing
f)
Steel
ball
(166)
of
shut—off
bar
missing
a)
Bearing
friction
excessive
b)
Lift pin
(185)
sticks in
guide
tube
The
geometrical
skating
force
acting
on
every
tonearm
is
eliminated
by
means
of
a
precision
ant—skating
device.
The
skating
force
is
dependent
on
the
geometry
of
the
tonearm,
on
the
tracking
force
and
on
the
tip
curvature
of
the
stylus of
the
pick
—up
cartridge.
The
pull
on
the
tonearm
to
the
center
of
the
platter
caused
by
the
skating
effect
leads
not
only
to
troublesome
jumping
of
the
tonearm
when
lowered
manually,
but
also
the
uneven
flank
loading
of
the
sound
groove
with
the
resultant effects
which
haue
to
be
eliminated
on
a
hifi
record
player
with
the
aid of
the
anti—skating
device.
Turning
the
Knurled
(63)
of
the
anti—skating
device
on
the
mounting
plate
moves
the
asym—
metrical plate
cam
(65).
This
plate
cam
has
two
different
curves
which,
according
to
use
of
the
red
anti—skating
scale
for
the
dif—
ferent styli
as
well for
CD
4
pick
—up
car—
tridges
move
the
skating lever
(207)
from
its neutral position
and
transmit
the
coun—
ter
force
to
the
tonearm
by
means
of
tension
spring
(214)
Optimum
adjustment
is carried
out
at
the
works
for styli with
a
tip
radius
of
15
+
2
µm
(conical)
and
5/6
x
18/22
µm
(ellip—
tical)
as
well
as
for
CD
4
pick
—up
car—
tridges. Alteration
can
only
be
carried
out
with
the
aid of
the
Dual
Skate
—O
—Meter
and
test
record
L
096
and
should
only
be
done
by
an
authorised
service
station.
Remedy
g)
Balance
tonearm
b)
Check
tonearm
balance,
adjust
tracking
force
to
the
value
stated
by
the
car—
tridge
manufacturer
c)
Correct
anti—skating
setting
d)
Renew
stylus
e)
Check
tonearm
bearings.
Both
bearings
must
haue
slight, just perceptible play.
The
adjustment
of
the
vertical
bearing
should
only
be
carried
out
with
the
left—
hand
bearing
screw
(grub
screw
56),
that
of
the
horizontal
bearing
by
means
of
grub
screw
(44).
The
horizontal
bearing
is correctly
adjusted
when
at
anti—skat—
ing setting "0.5"
(onearm
previously)
balanced
exactly)
the
tonearm
slides in
without
resistance.
f)
Renew
steel ball
(166)
a)
Eliminate
friction
by
adjusting
the
bea—
ring
screw
(grub
screw
56)
and
check
ba—
lance
b)
Remove
lift
tube
assembly
as
described
on
page
10.
Remove
guide
(181)
on
lift
pin
(185)
Remove
tension
spring
(184).
Withdraw
lift pin
evenly
with
"Wacker
Silicone Oil
AK
500
000".
Reassemble
com—
ponents.
Clean
parts
from
Silicone Oil,
if
cecessary.
8
Tonearm
set-down
Mechanism
Fig.
14
When
turning
knob
(68)
to
"V"
position
the
recesses
of
slide
bar
(194)
are
positioned
in
the
area
of
the
spring
pin
(F)
of
seg--
ment
(211).
When
moving
slowly
the
tonearm
with
tonearm
cue
control
in
1
position
the
spring
pin
(F)
is
arrested
in
the
recesses
of
slide
bar
(211)
thus
designing
the
set—down
point
of
stylus
for
30
cm
and
17
cm
recordings.
To
enable
set—down
in
the
catching
range
of
the
arresting
point
of
the
appropriate
set—
down
position,
the
tonearm
set—down
mache—
nism
can
be
disengaged.
When
repairing
the
unit
observe
the
follo—
wing
adjustment:
The
play
between
sliding
bar
(194)
and
the
guide
bush
of
the
spring
pin
(F)
should
be
0.2
mm
(Fig.
14).
Bring
lauer
(219)
into
X
position.
Adjust
by
turning
spring
pin
(198).
Cue
Control
The
cue
control
permits
gentle
set—down
of
the
tonearm
at
any
desired
point
(outside
the
shut—off
range)
on
the
record.
By
moving
the
lever
(219)
(moving
forwards)
lift
cam
(249)
rotates.
The
slide
bar
(194)
connected
to
it
transmits
this
movement
to
the
lift
pin
which
then
raises
the
tonearm.
After
moving
the
tonearm
into
the
required
position
on
the
record,
the
lauer
is
re—
Fig.
15
Tonearm
lift
11111
••
1».111.717•M911111•111.1111.1dIMMIM
ffl
111•111111,1111
111111171err
.1.11.1•
1
0,2mm!
,11•1
11
-
NM
NI
194
F
185
211
leased
by
gently
moving
to
the
rear.
As
a
result,
slide
bar
(194)
is
released
and
the
tonearm
lowers
slowly.
Lowering
of
the
to—
nearm
is
damped
by
silicone
oil
in
the
lift
pin.
The
heigt
of
the
stylus
above
the
record
can
be
varied
by
turning
adjusting
screw
(181).
The
distance
is
increased
by
turning
clockwise
and
the
distance
between
record
and
stylus
can
be
reduced
by
turning
anti—
clockwise.
The
distance
preset
by
the
fac—
tory
is
approx.
8
mm.
219
223
194
218
9
181
185
Fig.
16
Replacement
of
Lift
Tube
Defect
Cause
Tonearm
does
not
set
a)
Tonearm
set—down
down
at
the
edge
of
point
is
incor—
the
record.
rectly
set.
Tonearm
does
not
set
down
on
record
after
operating
cue
control.
Tonearm
lowers
onto
record
too
quickly
when
cue
control
is
operated.
With
tracking
force
and
anti—skating
in
0
position
tone
—
arm
moves
a)
outwards
b)
inwards
Motor
switches
off
when
tonearm
sets
down
on
rest.
Acoustic
feedback
b)
Anti—skating
set—
ting
is
incor—
rectly
set.
Excessive
damping
in
the
lift
tube
as
a
result
of
contamina—
tion
of
the
silicone
oil.
Damping
insufficient
as
a
result
of
un—
suitable
addition
of
lubricant
to
damping
compound.
a)
Anti—skating
de—
vice
maladjusted
b)
Tight
tonearm
leads
produce
a
torque
Capacitor
type
supp—
ressor
(in
power
switch)
defective
(short
circuit).
a)
Chassis
components
(e.g.
connecting
leads)
rubbing
on
board
cut
out.
Connecting
leads
to
tight.
b)
1.
Secure
unit
in
repair
jig,
and
lock
tone
—
arm.
2.
Move
unit
into
head
position.
3.
Remove
lockwasher
(197),
washer
(196),
and
bearing
(195).
Disengage
tension
spring
(226),
loosen
lockwasher
(231),
and
remove
slide
bar
(194).
4.
Disengage
tension
spring
(214),
undo
lock—
washer
(210),
and
remove
skating
lever
(207).
Be
careful
with
compression
spring
(208)
as
it
may
drop
out.
5.
Remove
lockwasher
(216)
and
slide
washer
(217).
Remove
shut—off
bar
(215)
from
segment
(211).
6.
Undo
hex
nut
(213).
Remove
segment
(211).
7.
Remove
lockwasher
(188),
remove
washer
(187),
disengage
catch
(186).
8.
Remove
machine
screw
(183).
Hold
tonearm
bearing.
Unscrew
hex
nut
(206)
and
remo—
ve
lift
tube
assembly.
9.
Secure
tonearm
against
dropping
out
using
hex
nut
(206).
For
installation
of
the
lift
tube
assembly
(182)
pröceed
in
the
reverse
order.
Remedy
a)
Readjust
tonearm
set—down
point
using
adjusting
screw
(48).
If
the
stylus
sets
down
too
far
in,
the
adjusting
screw
should
be
turned
counter—clockwise,
if
the
stylus
sets
down
too
far
out,
the
screw
should
be
turned
clockwise.
h)
Correct
anti—skating
setting
Remove
lift
tube
as
described
above.
Detach
adjusting
sleeve
(181)
and
remove
lift
pin.
Remove
compression
spring
(184).
Clean
lift
tube
and
lift
pin,
smear
lift
pin
evenly
with
"Wacker
Silicone
Oil
AK
500
000".
Reas—
semble
components.
Wipe
off
excessive
sili—
cone
oil
after
assembly.
Remove
lift
tube
as
described
above.
Detach
adjusting
sleeve
(181)
and
remove
lift
pin
(185).
Remove
compression
spring
(184).
Clean
lift
tube
and
lift
pin
and
smear
even—
ly
with
"Wacker
Silicone
Oil
AK
500
000".
Reassemble
components.
Wipe
off
excessive
silicone
oil
after
assembly.
a)
djust
skating
lauer
that
the
skating
spring
touches
the
pivot
of
the
tonearm
b)
Slacken
tonearm
leads
Replace
capacitor
type
suppressor
in
power
switch.
a)
Line
up
mounting
board
cut—out
according
to
installation
instructions.
b)
Slacken
or
lengthen
leads.
10
Starting
and
shut
off
Fig.
17
"er
1
11
Turning
the
tonearm
(49)
rotates
the sag—
Ment
(211)
thus
actuating
the
power
switch
(143)
via
catch
(186)
and
shift
arm
(172)
and
starting
motor
(132)
and
platter
(10)
Fotating.
The
shut—off
cycle
after
playing
a
record
is
initiated
by
the
dog
(M)
of
the
platter
(10)
and
shut—off
lever
(34).
The
shut—off
lever
(34)
is
guided
onto
the
dog
by
the
movement
of
the
tonearm
when
playing
the
record
with
the
aid
of
the
shut—
off
bar
(215)
proportionate
to
the
groove
lead.
The
eccentrically—mounted
dog
forces
the
shut—off
lever
(34)
back
with
each
re—
volution
as
lang
as
the
advance
of
the
tone
—
arm
only
amounts
to
the
width
of
one
groove
(Fig.
17
b)
Only
the
run—out
groove
with
its
increased
lead
guides
the
shut—off
lever
(34)
onto
the
dog
at
a
higher
rate
so
that
the
shut
off
lever
is
picked
up
and
moved
along
(Fig.
17
c)
As
a
result
the
shift
arm
is
brought
into
its
neutral
position
the
power
switch
inter—
rupting
power
supply.
Simultaneously,
the
lift
actuating
lever
(218)
coupled
to
the
shift
arm
(172)
is
actuated
and
the
tonearm
(49)
lifted.
Ddeet
Horizontal
tonearm
mevement
shows
resistance.
Catch
(186)
does
not
release
segment
(211).
Cause
b)
Incorrect
position
of
segment
(211).
a)
Catch
setting
(186)
is
out
of
adjustment
Remedy
b)
Move
tonearm
(49)
inwards.
By
rotating
eccenter
(E)
adjust
setting
for
a
play
of
0.2
mm
min.
between
the
stop
pin
of
shift
arm
(172)
and
the
installation
pla—
ta
(180).
a)
Lock
tonearm
(49).
Turn
unit
upside
down.
Undo
hex
nuts
(213).
Center
hole
(0
of
segment
(211)
should
be
aligned
to
the
frame
(46)
axis.
Align
for
a
play
of
0.3
—
0.5
mm
between
catch
(186)
and
stop
(A).
Tighten
hex
nuts.
Fig.
18
11
Replacement
parts
Pos.
Part.—No.
Description
Qty.
1
220
213
Centering
piece
1
2
236
036
Washer
1
3
237
218
Platter
mat
compl.
1
4
234
428
Support
assembly
1
5
210
472
Machine
screw
AM
3
x
4
5
6
232
086
Tension
spring
1
7
237
220
Locking
bar
1
8
234
814
Tension
spring
1
9
210
194
'C'
clip
G
2
x
6
1
10
237
221
Platter
compl.
with
mat
1
11
234
435
Fiat
belt
1
12
234
912
Adjustment
knob
1
13
232
078
Bearing
bush
1
14
234
910
Speed
control
lever
1
15
237
222
Speed
control
blind
compl.
1
16
213
260
Pin
2
x
6
8
17
214
210
Shipping
screw
compl.
3
20
210
146
Lock
washer
3,2
3
21
201
632
Rubber
washer
3
22
237
117
Washer
3
23
237
118
Lock
washer
3
25
237
116
Special
screw
3
26
237
223
Contact
plate
compl.
1
27
234
611
Handle
.
1
28
210
182
Bowed
lock
washer
1
29
210
630
Washer
4.2/8/0.5
St.
1
30
210
197
1
C
1
clip
G
4
x
8
1
31
237
224
Tonarm
head
compl.
1
32
236
242
TK
24
cartridge
mount
1
33
210
142
Lock
washer
1.2
1
34
234
766
Shut—off
lever
1
35
210
146
Lock
washer
3.2
5
36
234
764
Friction
plate
1
37
234
762
Support
1
38
237
225
Chassis
compl.
1
39
230
529
Threaded
piece
4
40
236
710
Compression
spring
green
(Motor
side
rear)
1
236
711
Compression
spring
withe
(Motor
side
front)
1
236
712
Compression
spring
blue
(Tonearm
side
rear)
1
236
713
Compression
spring
yellow
(Tonearm
side
front)
1
41
237
226
Spring
mount
compl.
(Motor
side
rear)
1
237
227
Spring
mount
compl.
(Motor
side
front)
1
237
228
Spring
mount
compl.
(Tonearm
side
rear)
1
237
229
Spring
mount
compl.
(Tonearm
side
front)
1
42
200
723
Rubber
damping
block
4
43
200
722
Steel
cup
4
44
234
651
Grub
screw
1
45
234
635
Lock
nut
2
46
237
230
Frame
compl.
1
47
237
231
Cover
rear
compl.
1
48
234
781
Adjustment
screw
1
49
237
232
Tonearm
compl.
1
50
236
904
Weight
compl.
1
51
234
636
Needle
1
52
236
160
Supporting
plate
2
53
237
233
Bearing
rock
1
54
236
051
Clamp
bolt
1
55
234
617
Fixing
screw
2
56
234
634
Grub
screw
1
57
234
635
Lock
nut
2
58
236
049
Set
screw
1
59
218
894
Bauer
lock
washer
1
60
237
234
Bearing
compl.
1
61
234
637
Bearing
screw
1
62
236
907
Spring
housing
compl.
1
63
236
081
Knurled
ring
1
64
216
867
Bauer
lock
washer
1
65
225
176
Curve
washer
1
66
210
362
Hex
nut
BM
3
5
67
213
260
Pin
2
x
6
8
68
234
770
Turning
knob
1
69
237
235
Cover
front
compl.
1
70
236
911
Tonearm
rest
compl.
1
71
210
362
Hex
nut
BM
3
5
12
Fig.
19
Exploded
view
above
chassis
()
,0
N16
c
(D
,-0
I
'
1
-0
i______
ii
@
I
—
--
i
9
i 1
e
--
- 1
0-
41i,
0--'
'CD
i
g--___.
;
0-0
1
g)-
-cb
0-
-
ee
L
__
_!
.--
g)--
-q
c-sp
13
Fig.
20
Exploded
view
below
chassis
14
tb,
Pos.
Part.—No.
Description
Qty.
100
210
145
Lock
washer
2.3
2
101
234
824
Switch
lever
1
102
236
374
Yoke
spring
1
103
232
094
Connecting
part
1
104
232
079
Joining
nut
1
105
232
097
Toothed
belt
pulley
II
1
106
232
049
Stop
disk
2
107
210
607
Washer
3.2/10/0.5
St
1
108
210
362
Hex
nut
BM
3
5
109
232
076
Toothed
belt
1
110
232
099
Adjustment
nut
1
111
232
049
Stob
disk
2
112
232
098
Toothed
beltpulley
I
1
113
232
137
Counter
bearing
compl
1
114
233
777
Tension
spring
1
115
232
615
Compression
spring
1
116
234
453
Motor
pulley
50
Hz
with
con
cal
sleeve
compl.
1
234
454
Motor
pulley
50
Hz
with
conical
sleeve
compl.
1
117
233
137
Set
screw
M
2.5
x
3
1
118
210
366
Hex
nut
BM
4
2
119
210
480
Machine
screw
AM
3
x
6
1
120
210
609
Washer
3.2/10/1
1
121
232
856
Screen
plate
compl
1
122
232
841
Rubber
damping
block
3
123
232
340
Inlayer
compl
1
124
234
447
Top
bearing
compl.
1
125
232
855
Spacer
2
126
209
939
Cable
grommet
1
127
234
449
Stator
110/220
V
compl.
1
128
233
815
Machine
screw
AM
2.5
x
18
1
129
234
450
Armature
compl.
1
130
234
451
Bottom
bearing
bracket
compl.
1
131
232
851
Centering
screw
2
132
234
452
8
—pole
Motor
SM
840
compl.
1
133
Connecting
plate
compl.
with
cover
-
For
spare
parts
134
Connecting
plate
compl.
of
connecting
135
Cover
plate
see
136
Machine
screw
M
3
x
35
_page
17
137
237
236
Support
housing
compl
1
138
236
759
Earth
spring
1
139
210
515
Machine
screw
M
4
x
6
3
140
Slide
_
141
Spring
washer
142
Switch
plate
compl.
143
Power
plate
compl.
For
spare
parts
of
power
144
Tension
spring
145
Switch
slide
plate see
page
17
146
Snob
spring
147
Zover
148
Machine
screw
M
3
x
28
149
231
079
Cable
holder
compl.
1
150
214
602
AMP—connector
4
151
232
996
Power
lead
Europe
compl.
1
152
232
995
Power
lead
US
compl
1
153
226
817
Pick
—up
lead
compl.
with
cynch
plug
1
154
209
426
Cynch
plug
black
2
155
209
425
Cynch
plug
white
2
156
237
238
TA—connecting
plate
compl.
1
157
210
480
Machine
screw
AM
3
x
6
1
158
236
080
Shield
1
159
210
472
Machine
screw
AM
3
x
4
5
160
236
219
Cinch
socket
plate
compl
1
161
209
975
Soldering
lug
1
162
210
475
Machine
screw
AM
3
x
5
1
163
236
195
Shield
1
164
210
472
Machine
screw
AM
3
x
4
5
165
236
950
Stop
1
166
209
357
Steel
ball
3.2
1
167
232
104
Ball
bearing
(bead)
1
168
210
469
Machine
screw
AM
3
x
5
3
169
210
362
Hex
nut
BM
3
5
170
171
210
586
234
759
Washer
3.2/7/0.5
St
•
Screw
pin
3
2
172
234
756
Shiftarm
1
173
210
146
Lock
washer
3.2
5
174
210
196
Ring
G
3
x
6
1
15
Pos.
Part.—No.
Description
Qty.
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
C
1
C
2
D
1
R
1
R
2
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
210
221
222
223
224
225
226
227
228
229
230
231
232
233
***
***
***
***
***
***
234
760
234
799
237
785
210
586
234
759
237
225
234
800
237
239
210
472
234
798
234
795
234
786
210
643
210
146
234
789
210
145
234
782
210
713
210
151
234
783
234
784
210
586
210
146
234
818
209
436
234
700
236
316
225
321
236
917
225
322
224
886
225
247
232,402
232
401
236
918
210
469
210
366
236
948
227
077
236
949
210
146
237
240
201
184
210
362
218
591
234
807
201
187
210
145
234
780
236
031
234
779
234
778
210
353
234
777
234
776
232
545
233
710
210
472
234
773
203
477
210
353
210
146
209
424
207
303
214
120
236
186
229
321
236
920
236
283
236
251
Stop
lever
Tension
spring
Wire
spring
Washer
3.2/7/0.5
St
Screw
bolt
Installation
plate
camp'.
Adjustment
sleeve
Lift
plate
compl.
Machine
screw
AM
3
x
4
Campression
spring
Lifting
bolt
compl.
Catch
Washer
4.2/12/1
St
Lock
washer
3.2
Post
spring
Lockwasher
2.3
Lockwasher
Washer
9.1/15/1
St.
Lockwasher
7
Slide
bar
Bearing
Washer
3.2/7/0.5
St
Lockwasher
3.2
Pin
screw
Socket
for
flat
prong
Stroboscope
plate
Stroboscope
housing
Glow
lamp
Wiring
board
compl.
Foil
capacitor
68
nF/400
0/10
%
Foil
capacitor
47
nF/250
0/20
%
Diode
BY
183/300
Carbon
resistor
22
k2/0.25
W/5
%
Carbon
resistor
12
k52/0.125
W/5
Cover
Machine
screw
AM
3
x
3
Hex
nut
BM
4
Skating
lever
compl
Compression
spring
Adjustment
screw
Lock
washer
Segment
compl.
Adjustment
washer
Hex
nut
BM
3
Tension
spring
Shut—off
bar
Sliding
washer
Lock
washer
2.3
Lift
actuating
lever
Lever
compl
Lift
maue
Torsion
spring
Hex
nut
BM
2
Lift
cam
Support
bracket
Laminated
spring
Tension
spring
Machine
screw
AM
3
x
4
Rotary
lever
Washer
2.7/
8
/
1
St.
Hex
nut
BM
2
Lock
washer
Miniature
plug
Pick
up
lead
with
miniature
and
Hardware
for
cartridge
mounting
Operating
instruction
Shipping
carton
510
compl
Shipping
carton
CS
510
compl.
Mounting
instructions
Operating
instructions
UAP
%
flat
plug
compl.
1
1
1
3
2
1
1
1
5
1
1
1
1
5
1
2
1
1
1
1
1
3
5
1
4
1
1
1
1
1
1
1
1
1
1
3
2
1
1
1
5
1
1
5
1
1
1
2
1
1
1
1
2
1
1
1
1
5
1
1
2
5
1
1
1
1
1
1
1
1
***
Not
illustrated
16
Replacement
parts
''
4
11181.
-
\ZV
(6,
Pos.
Part.-No.
Description
Qty.
r)
r-
co
eUi
O
r-
03
(3)
C'0
-0'
U3
Ui
N
03
0',
c- c-
CV
Connection
plate
210
501
Machine
screw
M
3
x
35
1
233
423
Plug,
unipolar
2
217
072
AMP-plug
socket
2
233
006
Cover
1
233
422
Cover
(for
plug
unipolar)
1
233
005
Connection
plate
complete
with
cover
1
236
997
Connection
plate
complete
with
cover
(for
plug,
unipolar)
1
233
007
Connection
plate
complete
1
Power
switch
210
498
Machine
screw
3
x
28
1
217
072
AMP-plug
sacket
2
233
423
Plug,
unipolar
2
233
010
Cover
for
direct
connection)
1
233
011
Cover
for
plate-connection)
1
233
421
Cover
for
plug,
unipolar)
1
209
505
Capacitor
10
nF/1000
V/10
%
1
230
355
Special
capacitor
68
nF/
150
V/20
%
1
230
148
Swith
slide
1
230
296
Tension
spring
1
219
200
Snap
spring
1
233
012
Switch
plate
compl.
1
233
013
Switch
plate
UL
compl.
1
236
605
Switch
plate
with
spec.-c.
compl.
1
236
335
Slide
1
200
444
Spring
washer
1
233
009
Power
switch
compl.
(for
direct
connection)
1
236
607
Power
switch
with
spec.-c.
compl.
(for
direct
connection)
1
234
816
Power
switch
compl.
(for
plate
connection)
1
233
008
Power
switch
UL
compl.
(for
plate-connection)
1
236
606
Power
switch
compl.
with
spec.-c.
(for
plate
con-
nection)
1
236
999
Power
switch
compl.
(for
plug,
unipolar)
1
236
998
Power
switch
compl.
with
spec.-c.
(for
plug,
unipolar)
1
'
Fig.
21
Connection
plate
Fig.
22
Power
switch
Modification
reserved!
Lubrication
Fig.
23
All
bearing
and
fric—
tion
points
of
the
unit
are
adequately
lubricated
at
the
works.
Replenishment
of
oil
and
grease
is
only
necessary
after
approximately
2
years
of
normal
use
of
the
record
player
as
the
host
important
bearing
points
(motor
bearings)
haue
sintered
metal
bushes.
Bearing
points
and
friction
faces
should
be
lubricated
sparing—
ly
rather
than
ge—
nerously.
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
becomposition
can
of—
ten
take
place.
To
prevent
lubrication
failure
we
recommend
using
the
original
lubricants
stated
be—
low.
Renotac
Na.
342
adhesive
oil
BP
Super
Visco—
static
10
W/30
Shell
Alvania
No.
2
Isoflex
PDP
40
Silicone
oil
AK
500
000
Fig.
24
920
282-2
5/1075
Printed
in
Germany
by
Dual
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