Dual 1229 Q User manual
Dual
Edition
June
1974
Technical
specifications
Power
source
Line
voltages
Drive
Power
consumption
Current
consumption
Dual
1229
Service
Manual
50
or
60
Hz
alternating
current,
selected
by
exchanging
motor
pulley
and
resetting
strobos-
cope
110—
130
volts
or
220
—
240
volts,
svvitchable
Dual
synchronous/continuous-pole
motor,
with
radial
elastic
suspension
approx.
10W
at
220
volts,
50
Hz
approx.
62
mA
at
117
volts,
60
Hz
approx.
115
mA
Turntable
platter
nonmagnetic,
dynamically
balanced,
weight
3.1
kg,
diam.
305
mm
Turntable
speeds
33
1/3,45
and
78
rpm
Pitch
control
Range
of
variation,
one
semitone
(6%),
on
all
three
speeds
Stroboscope
For
33
1/3
and
45
rpm
speeds.
I
Iluminated
by
special
neon
glow
lamp
Speed
variation
<
±
0.06%
according
to
DIN
45
507
Noise
Rumble
42
dB
below
standard
signal
Measured
according
to
DIN
45
500
Weighted
audible
rumble
63
dB
below
standard
signal
Tonearm
Torsionally
rigid,
extra-long
tubular
tonearm
in
four-point
gimbal
type
bearing
Maximum
tracking
error
0.16°/cm
Tonearm
bearing
friction
vertical
<
0.007
gram
(referred
to
stylus
tip)
horizontal
<
0.015
gram
Tonearm
head
Removable,
accepts
all
cartridges
weighing
2
to
10
grams
and
having
standard
1/2"
moun-
(cartridge
holder)
ting
centers
Weight
7.2
kg
unpacked
Mounting
dimensions
and
mounting
board
cut-out
see
installation
instructions
Dual
Gebrüder
SteldInger
•
7742
St.
GeorgenISchwarzwald
Download from www.dual.de
Not for commerical use
Fig.
1
Tonearm
connections
right
channel
t
---c
ime
red
a
I-----
/
1
>
/ I
\
e
0
1
n
L
__
Muting
switch
Mass
sheet
0
r
r
-r
—
1
1
I
I I
right
channel
_
L»
!
red
Mass
right
channel
green
E
Contact
plateat
tonearm
head
Record
Cartridge-holder
red
I
green
Cartridge
eedie‘meee
4 4 1
left
channel
-1
> r
---
--
1
'
1
_....
I
1
white
I<
L
---
p
-----
i
I
>L
.1
—
--
—
—
1
I
.
LI
i
I,
Tonearm
audio
cable
c
-
black
left
channel
white
Mass
left
channel
blue
Q2
—
white
blue
al
with
miniature
plug
5-pin
right
channel
red
lead
left
channel
white
lead
black
(red)
inner
side
of
groove
z
outer
side
of
groove
left
channel
right
channel
b)
with
phono
plug
i i
I
I
white
(yellow)
'Nee
Tonearm
head
%NW
Spring
contacts
between
plug-in
cartridge
head
and
tonearm
2
Contents
ee.
Page
Technical
specifications
1
Head
connecting
diagram
2
Motor
and
drive
4
Stroboscope
5
Stroboscope
bulb
not
illuminated
5
Fine—speed
adjustment
6
Turntable
does
not
run
when
start
switch
is
operated
6
Turntable
does
not
come
up
to
speed
6
Rumble
affecting
reproduction
6
Correct
nominal
speed
obtained
only
at
extreme
settings
of
pitch
control
6
The
tonearm
and
its
suspension
7
Anti—skating
adjustment
8
During
change
cycle,
tonearm
is
restricted
horizontally
9
Stylus
skips
9
Vertical
movement
of
tonearm
is
impeded
during
set—down
cycle
9
Tonearm
movements
10
Tonearm
lift
10
Tonearm
misses
edge
of
record
11
Tonearm
strikes
record
during
change
cycle
11
Tonearm
does
not
move
on
to
record
when
drop
cycle
is
started
11
Tonearm
is
lowered
too
quickly
when
drop
cycle
is
started
11
Sleeve
movement
not
damped
when
tonearm
lift
handle
is
moved
back
11
Tonearm
returns
to
rest
immediately
after
being
placed
on
record
manually
11
Start
cycle
11
Manual
start
12
Stop
switching
12
Muting
switch
12
Record
drop
13
Shut—off
and
change
cycle
13
Shut—off
mechanism
13
Turntable
stops
after
automatic
set—down
of
tonearm
14
Tonearm
misses
12"
record
during
cycling
when
moving
in
or
out
14
Last
record
keeps
repeating
15
Records
do
not
drop
15
Switch
locks
into
"stop"
position
when
tonearm
is
at
rest
15
Tonearm
will
not
lift
away
from
tonearm
rast
with
mode
selector
in
"multi"
position
15
Tonearm
moves
although
stylus
force
and
anti—skating
force
are
of
zero
16
During
change
movements
noises
from
the
mechanism
can
be
heard
in
16
the
speaker
system
16
Na
replay
sound
16
Motor
does
not
shut
off
when
tonearm
is
on
rest
16
Acoustic
feedback
16
With
mode
selector
at
"single",
tonearm
does
not
move
in
toward
record
on
automatic
single—play
operation
16
Record
does
not
drop
with
changer
spindle
in
position
16
Spare
parts
16
—
17
Exploded
view,
above
chassis
18
Exploded
view,
below
chassis
19
Spare
parts
20
—
22
Lubrication
23
3
Fig.
2
Motor
suspension
and
turntable
platter
drive
96
104
Motor
and
Pulley
134
131
133
156
Power
for
the
turntable
platter
and
the
changing
mechanism
is
supplied
by
a
four—pole
Dual
continuous
pole
synchronous
motor
su—
spended
by
radially
located
elastic
mounts
and
having
a
very
small
stray
magnetic
field
and
little
vibration.
The
speed
of
the
motor
is
independent
of
line
voltage,
temperature
or
load
variations.
Speed
is
dependent
on,
and
proportional
to
power—line
frequency.
The
motor
is
adapted
to
50
or
60
cycle
(Hz)
power—line
frequencies
by
the
correct
choice
of
motor
pulley.
Motor
pulley
for
50
Hz
operation:
Motor
pulley
for
60
Hz
operation:
Part.—No.
218
275
Part.—No.
216
276
Fig.
3
Motor
field
connections
115
121
188
The
motor
pulley
(115)
is
fastened
to
the
motor
shaft
by
a
setscrew.
When
you
change
pulleys,
be
sure
that
the
new
pulley
is
set
at
the
correct
height
(see
page
6).
The
turntable
platter
is
driven
by
the
id—
ler
wheel
(131),
which,
to
prevent
damage
to
its
friction
surfaces,
is
automatically
disengaged
when
the
unit
is
shut
off.
Set—
ting
the
turntable
speed
to
33
1/3,
45
or
78
rpm
is
done
by
raising
or
lowering
the
idler
to
bear
against
the
proper
step
of
the
motor
pulley.
Upon
actuation
of
the
switch
(6),
the
switch
segment
(102)
rotates.
This
causes
the
lever
(134)
fitted
into
a
slot
on
the
segment
to
move
vertically.
The
drive
wheel
(131)
carried
on
the
swinging
arm
(133)
is
then
lifted
off
the
motor
pulley,
moved
and
replaced
on
the
motor
pulley
step
cor—
responding
to
the
selected
speed.
220-240V
4
110-125V
St
roboscope
The
exact
adjustment
for
33
1/3
and
45
r.p.m.
can
be
controlled
with
the
help
of
the
stroboscope,
including
when
a
disc
is
being
played.
The
ring
of
lines
on
the
strobe
will
appear
to
stand
still
when
the
turntable
(4)
rotates
at
the
correct
speed
(33
1/3
or
45
r.p.m.).
If
the
ring
of
lines
turns
in
the
same
direc—
tion
as
the
turntable
platter,
the
speed
of
the
platter
is
too
fast;
when
the
lines
move
in
the
opposite
direction
to
the
platter,
then
the
platter
is
rotating
slower
than
the
chosen
speed.
The
adjustment
is
made
with
the
"pitch"
knob
(8).
The
view
angle
of
the
stroboscope
can
be
rotated
by
turning
the
knurled
ring.
To
change
the
angle,
lasen
the
machine
screws,
slide
the
stroboscope
housing
(85)
11
50"
or
"60"
and
tighten
the
screws
again.
The
neon
lamp
(93)
can
be
changed
after
re—
moving
the
top
part
of
the
housing
(90).
When
replacing
the
neon
lamp,
be
sure
that
the
red
point
(p)
(Anode)
is
located
on
the
right
contact
spring
(unit
viewed
from
front).
Trouble
The
stroboscope
neon
lamp
(93)
does
not
light
up
when
the
unit
is
turned
on.
Cause
a)
Defective
neon
lamp
(93)
b)
Current
path
is
interrupted
Remedy
a)
Replace
the
neon
lamp
(93).
Make
sure
that
the
red
point
(Anode)
of
the
neon
lamp
is
located
on
the
right
contact
spring
(front
view
of
unit).
Fig.
4
b)
Check
the
connections
on
the
power
supply
switch
and
other
components.
Fig.
4
Stroboscope
Fig.
5
Wiring
diagram
,
1
,
Netzschalter
POWER
SWITCH
INTERRUPTEUR
SECTEUR
Fig.
6
Circuit
board(output
stages)
Fig.
7
Pitch
Control
Trouble
Turntable
does
not
run
when
unit
is
'plugged
in
and
start
switch
operated
Turntable
does
not
come
up
to
speed
Rumble
affecting
re—
production
Fig.
8
Cause
a)
Current
path
to
motor
interrupted
b)
Idler
wheel
(131)
not
in
contact
with
platter
c)
Motor
pulley
loose
a)
Motor
pulley
is
not
correct
for
local
line
fre—
quency
b)
Slip
between
id-
1er
wheel
(131)
and
motor
pulley
or
platter
c)
Excessive
fric—
tion
in
motor,
drive
wheel
or
platter
bearings
Worn
idler
wheel
A
fine—speed adjustment
for
all
three
speeds
(33
1
/
3
,
45
and
78
r.p.m.)
permits
a
platter
speed
variation
of
max.
6
%
(1
semitone),
independent
of
supply
voltage.
Turning
the
pitch—control
disc
(8)
causes
the
selector
segment
(102)
to
rotate.
The
switch
lever
assembly
(134)
moves
up
and
down,
changing
the
position
of
the
idler
wheel
on
whatever
motor
pulley
step
it
has
been
placed
on.
The
tapered
shape
of
the
motor
pulley
gives
and
adjustment
range
of
+
3
%
from
the
nominal
speed.
The
motor
pulley
(115)
should
be
adjusted
in
such
a
way
that
on
33
1/3
r.p.m.
(checked
with
the
stroboscope),
the
markings
on
the
adjusting
disc
(8)
should
be
between
the
two
middle
lines.
Due
to
production
toleran—
ces,
the
45
r.p.m.
rated
speed
may
differ
from
the
33
1/3
r.p.m.
by
up
to
two
scale
markings
on
either
side.
Rermedy
a)
Check
connections
at
switch
plate
and
voltage
selector
b)
Check
switch
lever
assembly
(134)
c)
Tighten
motor
pulley
a)
Change
motor
pulley
b)
Clean
friction
surfaces
of
idler
wheel,
motor
pulley
and
turntable
platter.
If
necessary,
replace
drive
wheel.
Once
the
drive
surface
of
the
platter
has
been
cleaned,
da
not
touch
lt
with
your
fingers.
c)
Clean
and
oil
bearings
Replace
idler
wheel
(131).
Clean
platter
drive
surface
and
motor
pulley
with
grease
solvent.
Once
surfaces
arm
cleaned,
do
not
touch
them
with
your
fingers.
Trouble
Correct
nominal
speed
obtained
only
at
ex—
treme
settings
of
pitch
control
Cause
a)
Idler
wheel
does
not
contact
motor
pulley
accurately
b)
Motor
pulley
out
of
adjustment
Remedy
a)
With
adjuster
(E)
turn
alignment
screw
(95)
(Fig.
7)
until
rated
speed
is
ob—
tained
at
contral
setting
of
pitch
con—
trol
(8)
b)
Move
pitch
control
(8)
and
alignment
disc
(101)
to
center
settings
(1
mm
dia.
hole
on
disc
opposite
alignment
wheel).
Ad
—
just
the
motor
pulley
vertically
after
loosening
its
setscrew
(116)
by
turning
screw
(114).
The
correct
position
for
the
idler
is
in
the
center
of
each
motor
pulley
step,
when
the
pitch
control
is
centered
in
its
range
(Fig.
8).
Retighten
setscrew
(116)
after
adjustment.
6
Tonearm
and
Tonearm
Bearing
Fig.
9
Tonearm
bearing
assembly
•
Tubular
tonearm,
extra
lightweight,
torsionally
rigid
tonearm
of
the
Dual
1229
Q
pivots
both
horizontally
and
vertically
on
needle
bea—
rings
and
precision
ball
bearings
in
harde—
ned
and
polished
races.
lt
is
suspended
in
a
gimbal
arrangement.
This
keeps
friction
to
a
minimum.
Vertical
pivot
friction
=
0.007
gram
Horizontal
pivot
friction
=
0.015
gram
referred
to
stylus
tip
The
arm
is
thus
able
to
track
extremely
well.
The
tonearm
head
is
removable.
Before
set—
ting
the
tracking
force
for
the
cartridge
being
used,
set
the
tracking—force
scale
to
zero
and
balance
the
tonearm.
Initial
ba—
lance
is
by
sliding
the
counterweight
(74).
Final
adjustment
is
by
turning
the
weight.
You
can
balance
cartridges
with
a
weight
of
1
to
10
grams.
To
reduce
the
effects
of
small
shock
im—
pulses
on
the
arm,
the
counterbalance
weight
is
resiliently
mounted
on
a
threaded
spindle,
and
friction—braked
to
prevent
accidental
rotation.
The
cartridge
holder
will
accept
all
cartridges
with
international
standard
mounting
centers
of
1/2
inch.
Stylus
force
is
set
by
turning
a
calibrated
housing
(78),
which
stresses
or
releases
a
spiral
spring
contained
inside.
The
scale
adjustment
is
calibrated
from
0
—
3
p,
from
0
—
1.5
p
at
1/10
p
and
from
1.5
—
3
p
at
1/4
p
intervals.
Tracking
forces
of
mors
than
3
p
can
be
ad—
justed
with
the
help
of
the
counter—weight
on
the
tonearm;
turning
left
(counter—clock—
wise)
increases
the
tracking
force
by
1/2
p
per
complete
turn.
To
replace
the
tonearm
and
bearing
assembly,
follow
these
steps:
1.
Set
stylus
force
dial
to
zero
and
mo—
de
selector
to
"single".
2.
Fasten
unit
in
repair
jig
and
turn
upside
down.
3.
Unsolder
tonearm
bade.
4.
Remove
main
lever
(184)
and
linking
layer
(270).
5.
Unhook
springe
(237,
241,
269
and
unscrew
protective
plate
(233
.
6.
Remove
washer
(266)
and
skating
lever
(267).
7.
After
removing
lock
wacher
(272)
and
sliding
disc
(271),
remove
shut—off
slide
(253)
from
segment
(201).
8.
Loosen
hex
nut
(236).
Pull
off
guide
(198)
and
lock
wacher
(199).
After
unscrewing
positioning
sleeve
(200),
lift
plata
with
lifting
pin
(203)
and
segment
(201)
can
be
removed.
9.
Turn
the
unit
back
in
its
normal
po—
sition.
10.
Set
mode
selector
on
"multi",
then
rotate
the
tonearm
bearing
frame
(58)
counter—clockwise
until
it
cannot
turn
anymore.
The
tonearm
can
then
be
lif—
ted
out.
61
62
58
60
59
Fig.
10
Tonearm
assembly
sequence
78
83
76
57
68
10
201
203
206
7
Fig.
11
Tonearm
bearing
assembly
viewed
from
underneath
273
270
184
210
Fiq.
12
Anti—skating
force
Cam
wheel
a)
Anti-skating
in
"0"
Skating
lever
Shut-off
slide
Radius
for
conical
styli
b)
Anti-skating
mechanism
in
"1,5"
on
the
scale
for
conical
styli.
Tonearm
on
rest
position.
Radius
for
elliptical
styli
c)
See
"b",
tonearm
only
over
turn-table.
Anti-skating
force
Skating
force
Tension
spring
Segment
58
74
77
233
258
241
201
267
Shield
Tension
spring
Anti-skating
mechanism
To
replace
the
tonearm
bearing
assembly,
hold
it
with
a
suitable
tool
(such
am
a
pair
of
flat—nose
pliers)
and
loosen
hex
nut
(71)
with
an
open—end
wrench.
Be
sure
to
secure
the
bearing
socket
with
a
5
mm
rod
to
prevent
its
being
pinched
together.
Reverse
the
procedure
to
reassemble
the
to—
nearm
and
bearing.
The
unit
must
be
right—
side—up.
After
assembly,
immediately
place
the
mode
selector
at
"single".
This
prevents
the
tonearm
from
falling
out
when
the
unit
is
turned
upside
down
again.
Do
not
omit
spring
(78).
Install
segment
(201)
and
lift
plate
(203).
Tighten
the
positioning
sleeve
(200)
on
the
lift
tube.
Insert
lock
washer
in
recess
on
lifting
pin
and
mount
the
guide
again.
Be—
fore
tightening
hex
nut
(236),
rotate
outer
bearing
frame
(58)
counter—clockwise
until
you
feel
slight
resistance.
This
puts
the
forward
edge
of
the
outer
bearing
frame
approximately
at
the
center
line
of
the
in—
ner
tonearm
bearing
screw,
and
represents
the
correct
tonearm
position.
After
reinstalling
the
protective
plate,
ensure
that
the
segment
(201)
moves
freely
and
without
rubbing
in
its
guide
(232)
and
is
not
hindered
in
its
movement
by
the
to—
the
tonearm
wires.
Adjust
tonearm
height
with
positioning
sleeve
(200)
and
locating
screw
(79)
in
"multi"
position
at
the
mode
selector.
Correct
position
with
main
lever
pressed
up
is
approx.
0.5
mm
play
remaining
measured
at
tonearm
head,
see
Fig.
13.
Anti-Skating
Device
The
tendency
of
a
tonearm
with
an
offset
(angled)
head
to
"skate"
inward
across
the
record
is
eliminated
in
the
Dual
1229
Q
by
a
precision
anti—skating
mechanism.
Skating
force
depends
on
tonearm
geometry,
stylus
force
and
the
tip
radius
of
the
stylus.
The
inward
pull
on
the
tonearm
caused
by
the
ska—
ting
effect
gives
rise
not
only
to
an
un—
desirable
jumping
of
the
tonearm
when
set
down
on
the
record,
but
also
to
unequal
forces
on
the
two
opposite
groove
walls,
with
cor—
responding
iii
effects.
This
can
be
correc—
ted
by
proper
anti—skating
adjustment
am
pro—
vided
on
a
high
—grade
HiFi
record
player.
By
turning
the
anti—skating
adjustment
knob
(84)
on
the
chaasis,
an
asymmetrical
curved
surfaces corresponding
to
the
red
and
whi—
te
scales
on
the
antiskating
dial.
The
red
sdale
is
for
conical
(spherical
tip
styli,
the
white
for
elliptical
(bi
—radial)
styli
and
for
CD
-4
quadrophonic
cartridges.
When
the
knob
is
turned,
the
curved
surfaces
push
the
anti—skating
lever
(267)
away
from
its
rest
position
so
that
it
applies
a
suitable
counter—force
via
a
spring
(265).Skating
compensation
is
set
at
the
factory
for
conical
styli
with
a
tip
radius
of
15
+
2
µm,
and
for
elliptical
styli
with
mea:
surements
of
5/6
x
18/22
µm.
The
adjust—
ing
hex
nut
(259)
is
tightened
and
sealed.
Readjustments
should
be
attempted
only
with
the
help
of
the
Dual
Skate
-0
—Meter
and
test
record
L
096.
This
work
should
be
done
by
an
authorized
Dual
service
agency.
8
Trouble
During
change
cycle,
tonearm
is
restricted
horizontally.
Cause
Positioning
sleeve
or
locating
screw
out
of
adjustment.
Remedy
With
main
lever
(184)
pressed
up,
adjust
positioning
sleeve
so
that,
with
the
tone
—
arm
unlocked
and
over
the
rest,
the
upper
edge
of
the
tonearm
rast
piece
and
the
above
edge
of
the
tonearm
rest
are
at
the
same
height.
Now
adjust
to
a
play
of
0.1
—
0.2
mm
between
guide
and
tonearm
rest
sur—
face
by
means
of
the
locating
screw
(79).
(Approx.
0.5
mm
measured
at
tonearm
head).
Fig.
13
Trouble
Cause
Remedy
Stylus
skips
a)
Tonearm
not
balanced
a)
Balance
tonearm
b)
Stylus
force
too
low
b)
Set
stylus
force
to
cartridge
manufac—
turer's
recommended
value
c)
Anti—skating
wrongly
c)
Correct
anti—skating
setting
adjusted
d)
Stylus
worn
or
chip—
d)
Renew
stylus
ped
e)
Excessive
friction
in
e)
Check
tonearm
pivot.
Both
bearings
should
tonearm
bearing
haue
barely
noticeable
play.
Adjust
ver—
tical
baering
only
with
the
left
bearing
screw
(62)
and
horizontal
bearing
with
nut
(59).
Horizontal
bearing
is
correct—
ly
adjusted
when
the
tonearm,
with
anti—
skating
set
at
0.5
gram,
swings
freely
from
center
to
rest
(first
balance
tone
—
arm
accurately).
f)
Steel
ball
(254)
miss—
Replace
steel
ball
(254)
ing
from
shut—off
rail
g)
Segment
(201)
rubs
in
g)
Adjust
guide
(232).
Adjustment
is
correct
guide
when
the
tonearm
moves
freely
in
the
horizontal
plane
at
both
settings
of
the
mode
selector
Vertical
movement
a)
Bearing
friction
toc
high
of
tonearm
is
im—
peded
during
set—
b)
Lift
screw
(206)
jams
down
cycle
in
guide
tube
of
lift
plate
a)
Adjust
at
bearing
screw
(62),
and
check
arm
balance
b)
Remove
and
clean
lift
screw.
Clean
lift
tube
and
fill
with
"Wacker
Silicon
Oil
AK
500
000".
Fig.
14
Tonearm
control
mechanism
Tonearm
Movement
151
173
Fig.
15
215
184
203
Adjustment
of
tonearm
height
(with
tonearm
raised
)
Cadridge
mount
[
1
1
Cartridge
235
mm
15
/
6
4"
Record
Turntable
platter
mat
Turntable
platter
Fig.
16
Tonearm
lift
with
tonearm
raised
max.
8
mm
5
/
1
,
"
-262
—270
195
255
—257
234
A
guide
groove
located
on
the
underside
of
the
main
cam
(165)
controls
automatic
lift
and
set—down
of
the
tonearm
as
the
cam
rotates
through
360
0
.
Tonearm
lift
and
lowering
are
controlled
by
the
main
lever
(184)
and
the
lift
screw
(206).
Horizontal
movements
are
controlled
by
main
lauer
(184)
and
the
segment
(201).
Setting
the
changer
for
playback
of
7",
10"
or
12"
discs
is
done
with
the
indexing
lever
(49).
Set
—down
points
are
determined
by
the
eccentric
ortion
of
the
arm
positioning
slide
(225)
and
the
in—
dexing
lever
(267).
Horizontal
movement
of
the
tonearm
is
limited
by
the
arm
segment
striking
the
arm
positioning
slide
(255).
During
the
change
cycle,
the
main
lever
(184)
raises
the
arm
positioning
slide,
bringing
it
within
reach
of
the
spring
stud.
On
completion
of
the
change
cycle
(set—down
of
the
tonearm
on
the
record),
the
arm
po—
sitioning
slide
(255)
is
again
released
and
returns
to
its
normal
position.
lt
thus
moves
out
of
reach
of
the
spring
stud,
permitting
the
tonearm
to
move
hori—
zontally
without
hindrance
while
playing
the
record.
Tonearm
Lift
The
tonearm
lift
permits
the
tonearm
to
be
set
down
on
the
record
safely
at
any
desired
point
except
the
shut—off
area
(near
the
re—
cord
label).
Pulling
the
tonearm
lift
control
towards
the
front
turns
the
drive
cam
(220).
This
moves
the
connecting
lever
(270),
and
lift
screw
(206),
to
raise
the
tonearm.
After
the
tonearm
has
been
moved
(by
hand)
to
the
desired
spot
on
the
record,
the
tone
—
arm
lift
handle
is
lightly
tapped
towards
the
rear
to
release
the
mechanism.
The
con—
necting
lever
(270)
and
spring
(205)
of
the
lift
screw
(206)
are
freed,
allowing
the
tonearm
to
fall.
The
rate
of
fall
is
con—
trolled
by
silicone
oil
in
the
lift
tube.
The
height
of
the
stylus
above
the
record
can
be
varied
by
adjusting
setscrew
(218).
Turning
it
to
the
right
increases
the
height,
turning
it
to
the
left
decreases
the
height.
Units
leaving
the
factory
are
adjusted
so
that
the
tonearm
still
lifts
reliably
off
the
fifth
record
on
the
platter.
64
220
216
270
10
234
28
201
229
206
184
41,
4›,
ob,
Trouble
Cause
Tonearm
misses
edge
a)
Record
size
in
—
of
record
correctly
set
b)
Set
—down
point
in—
correctly
adjusted
c)
d)
Tonearm
strikes
re—
cord
during
change
cycle
Tonearm
does
not
descend
on
to
re—
cord
when
drop
cycle
is
started
Tonearm
descends
too
quickly
when
drop
cycle
is
started
Sleeve
(64)
movement
not
damped
when
tone
—
arm
lift
handle
is
moved
back
Tonearm
returns
to
rest
immediately
after
being
placed
on
record
manually
Start
Cycle
Record
not
standard
size
Friction
surfaces
of
tonearm
clutch
dirty
Tonearm
height
incor—
rectly
set
Damping
too
great;
dirty
silicone
oil
in
lift
tube
Too
little
damping;
incorrect
lubricant
added
to
silicone
oil
Too
little
or
the
wrong
lubricant
used
when
damping
the
tonearm
lift
Shut—off
mechanism
has
shifted
out
of
position
in
transit
from
factory
Moving
the
start
switch
(48)
first
turns
the
switch
lever
(195)
clockwise,
initiating
the
following
sequence.
a)
The
tug
on
the
switch
lever
assembly
(195)
turns
the
switch
arm
(188)
moun—
ted
on
the
grooved
shaft
(192).
Via
a
tension
spring,
this
actuates
the
rocker
assembly
(134)
and
engages
the
idler
(131)
between
the
platter
(4)
and
the
motor
pulley
(115).
At
the
same
time,
the
power
switch
(129)
is
actuated
by
the
switch
slide
(167)
through
the
switch
arm,
and
the
turntable
begins
to
rotate.
b)
The
switch
lever
(195)
is
brought
within
reach
of
the
cam
follower
lever
(207),
so
that
it
is
pushed
into
the
change
posi—
tion
as
the
main
cam
rotates.
Moving
the
operating
switch,
also
relea—
ses
the
start
lever
(248),
pulling
it
towards
the
main
cam
by
means
of
the
ten—
sion
spring
(251).
Rmmedy
Set
record
size
selector
Adjust
set—down
with
a
12"
record
so
that
stylus
touches
record
approximately
1/16"
inside
edge
of
record.
Adjustment
will
be
correct
for
other
sizes.
c)
Use
standard
records
d)
Clean
clutch
surfaces
Adjust
it
by
turning
rear
adjustment
screw
(79).
Adjustment
is
correct
when
in
"multi"
position,
with
tonearm
unlocked
and
on
its
rest,
the
upper
edge
of
the
tonearm
support
is
about
0.5
mm
(02
in.)
above
the
upper
ed—
ge
of
the
tonearm
bracket.
(see
fig.
13)
Remove
lift
plata
according
to
instruc—
tions
in
the
section
"Tonearm
and
suspen—
sion".
Clean
lift
tube
and
bolt
and
fill
tube
with
"Wacker
Silicone
Oil
AK
500
000".
Follow
instructions
above
for
too
great
damping
Remove
lift
plata
(221).
Clean
and
smear
it
with
Wacker
Silicon
Oil
AK
500
000.
After
inserting
again,
clean
off
any
lubricant
that
has
overflowed
Before
using
changer
and
after
moving,run
it
through
start
cycle
with
tonearm
locked
cm
rast
(automatic
alignment
of
shut—off
mechanism).
Fig.
17
Start
position
234
165
270
255
276
171
188
192
248
195
196
Fig.
18
Stop
position
173
165
234
Fig.
19
Muting
switch
270
262
255
Cam
wheel
at
zero:
Contacts
of
muting
switch
opened
Cam
wheel
is
turning:
Contacts
of
muting
switch
is
closed
207
168
192
248
195
196
252
276
To
prevent
malfunctioning,
the
operating
switch
is
locked
during
the
start
cycle
(that
is,
while
the
main
cam
is
turning).
Just
before
the
main
cam
reaches
its
neutral
position
(at
the
end
of
the
chan—
ge
cycle),
the
start
lever
(248)
is
pus—
hed
clear
of
the
main
cam
by
the
angular
part
of
the
main
cam.
This
restores
the
switch
lever
and
operating
switch
to
their
original
positions.
After
installation
and
also
after
moving
the
changer,
the
unit
should
be
started
with
the
tonearm
locked
on
the
rest.
This
will
automatically
readjust
the
shut—off
lever,
which
may
haue
shifted
out
of
position.
Manual
Start
When
the
tonearm
is
swung
inward
by
hand,
the
pawl
(273)
on
the
switch
arm
(188)
drops
into
a
sciare
bolt
on
the
base
plate,
holding
the
switch
arm
in
this
positions
and
the
ilder
wheel
(131)
in
contact
with
the
plat—
ter.
The
slide
(167)
linked
with
the
switch
actuates
the
power
switch
and
starts
the
turntable
platter
rotating.
On
reaching
the
run—out
groove,
the
tone
—
arm
automatically
returns
to
its
rest
po—
sition
and
the
unit
shuts
itself
off.
How—
over,
if
the
tonearm
is
lifted
off
the
record
manually
and
returned
to
the
rest,
the
tabs
of
the
arm
segment
(201)
release
the
pawl
(273).
The
torsion
spring
(187)
then
returns
the
switch
arm
to
its
initial
po—
sition,
opening
the
power
switch
and
dis—
engaging
the
idler
wheel.
Stop
Switching
When
the
operating
lever
is
moved
to
"stop",
the
starting
lever
is
pushed
forward.
As
a
result,
the
shut—off
linkage
comes
into
con—
tact
with
the
gear
pinion
on
the
turntable,
and
the
cam
is
rotated.
The
swinging
lever
remains
in
its
stop
position.
When
the
tone
—
arm
is
on
its
reist
and
the
operating
lever
is
pushed
to
"stop",
the
operating
lever
must
not
jam.
Short
Circulter
To
prevent
the
noise
of
the
change
and
start/
stop
cycles
from
being
sent
through
the
audio
system,
the
apparatus
is
fitted
with
a
short—
circuitin
(muting)
switch.
The
switch
springs
for
both
channels
arm
actuated
by
the
main
cam.
In
the
tonearm
rest
position,
the
mut—
ing
switch
is
opened.
12
Record
Drop
Fig.20
Record
drop
Insert
the
appropriate
spindle
—
AU
3
for
standard
records
(7
mm
or
1/4"
center
hole)
or
AS
12
for
45
rpm
records
(38
mm
or
1
1/2"
center
hole).
To
prevent
faulty
operation,
automatic
re—
cord—changing
operation
is
possible
only
when
the
mode
selector
is
in
the
"multi"
position.
Record
drop
is
initiated
by
the
rotation
of
cam
(165),
whose
cam
surface
(AK)
guides
the
cam
rocker
(173),
pushing
the
change
actator
stud
(206)
and
releasing
a
record
by
means
of
the
automatic
spindle.
The
main
cam
is
designed
so that
a
record
can
drop
only
when
the
tonearm
is
above
the
tonearm
rest
and
thus
out
of
the
reach
of
the
largest
possible
record
(12"
diameter).
Shut
-
oft
and
Change
Cycle
The
dog
(M)
on
the
turntable
platter
gear
(PR)
and
the
shut—off
lever
(162)
actuate
both
the
change
cycle
at
the
end
of
the
record
as
well
as
the
shut—off
after
the
last
record
in
a
stack
is
played.
At
the
end
of
a
record,
the
tonearm
moves
towards
the
center
at
an
accelerated
rate
due
to
the
increased
pitch
of
the
grooves.
This
motion
carries
the
shut—off
lever
(162)
towards
the
dog
by
means
of
the
shut—off
slide
(253).
The
eccentric
dog
pushes
the
shut—off
lever
(162)
back
at
each
revolut—
ion
as
long
as
the
tonearm
advance
is
only
one
normal
record
groove.
The
run—out
groove
with
its
steeper
pitch
moves
the
shut—off
lever
against
the
dog
with
greater
force,
engaging
the
shut—off
lever
(162)
and
causing
the
main
cam
(165)
to
be
driven
out
of
its
neutral
position
by
the
turntable
platter
gear.
Shut-oft
Mechanism
Shut—off
and
change
functions
are
deter—
mined
by
the
position
of
the
cam
follower
lever
(207).
After
every
start
or
record
drop,
the
cam
follower
lever
is
brought
to
its
stop
position
by
the
main
lever
(184)
(longer
end
towards
the
center
of
the
main
cam).
171
177
165
173
AK
172
151
212
Fig.21
Actuating
change
or
shut—off
operations
PR
M
163
162
253
195
255
188
270
234
184
203
13
Fig.22
Change
cycle
177
178
179
Fig.
23
Fig.
24
1119:LLI-Littij,,.
'''''
rztti4
• 4'
.1
-
)'‘
I
171
173
172
156
207
As
the
record
is
dropped
the
cam
follower
lever
(207)
is
turned
to
its
start
position
by
the
cam
rocker
(173),
so
that
the
tone
—
arm
can
swing
in
toward
the
record
and
be
lowered
on
to
it.
If
there
are
no
more
re—
cords
on
the
spindle,
and
the
cam
rocker
cannot
turn
the
cam
follower
lever,
the
lever
remains
in
its
stop
position
and
allows
the
tonearm
to
swing
to
its
rast
position.
When
the
main
cam
(165)
returns
to
its
neu—
tral
position,
the
switch
arm
(188)
drops
into
a
cut—out
in
the
main
cam,
opening
the
power
switch
(129)
and
disengaging
the
drive
idler
(131).
Trouble
Turntable
stops
after
automatic
setdown
of
the
tonearm
Cause
a)
Switch
arm
(188)
is
not
latched
by
pawl
(273).
Bolt
of
segment
slips
over
pawl
instead
of
engagin
it.
b)
Power
switch
opens
c)
Square
bar
not
properly
screwed
in.
Paul
can
escape.
Remedy
a)
Adjust
segment
(201)
so
that
bolt
catches
pawl
in
both
positions
of
mode
selector.
b)
By
aligning
angle
lever
(145)
(play
bet—
ween
angle
lever
and
slide
(140)
max.
0.3
mm).
c)
Loosen
screw
(256).
Press
pawl
against
square
bar
(274)
(arrow
in
Fig.
24)
and
fasten
screw.
Trouble
Tonearm
misses
1/2
inch.
record
during
cy—
cling
moving
in
or
out.
Cause
Switch
arm
maladjusted.
Paul
touches
square
bar.
Remedy
After
loosening
screw
(189),
twist
short
part
of
the
switch
arm
on
the
long
part.
Adjustment
is
correct,
when
the
distance
between
pawl
and
square
bolt
(274,
mounted
on
chassis
plate)
is
0.3
mm
after
the
tone
—
arm
has
moved
in
and
the
main
cam
was
turned
manually.
14
Fig.25
4b.
4
1$
Trouble
Last
record
of
stack
keeps
repeating
Cause
Defective
spindle
Remedy
Replace
spindle
Trouble
Records
do
not
drop
Cause
Cam
rocker
has
too
little
travel
Remedy
Adjust
eccentric
so
that
when
the
three
supports
in
the
automatic
spindle
are
held
in
and
the
main
cam
is
at
neutral,
pres—
sing
the
change
screw
moves
the
support
about
0.2
mm
(1/64").
Trouble
Switch
locks
into
"stop"
position
when
tone
—
arm
im
at
rest.
Cause
Too
much
clearance
between
tab
on
switch
arm
(188)
and
start
lever
(248)
Remedy
Adjust
tab
on
switch
arm
so
that
it
clears
start
lever
by
0.1
—
0.2
mm
or
1/64"
when
main
cam
in
neutral
position
Trouble
Tonearm
will
not
lift
away
from
the
tonearm
rest
with
mode
selector
in
"multi"
posi—
tion
Cause
Equalizing
arm
(210)
maladjusted.
Balance
plate
(243)
at
the
main
lever
(184)
does
not
contact
with
the
lifting
bolt
Remedy
Adjust
equalizing
arm
on
the
eccentric
piece
of
the
protecting
plate
so
that
with
the
main
lever
pushed
down,
the
balance
plate
rests
by
a
minimum
of
0.6
—
0.8
mm
on
the
lift
bolt.
In
the
"single"
position,
the
lift
bolt
must
slide
along
the
balance
pla—
te
without
hindrance.
Fig.26
Fig.
27
15
Trouble
Cause
Remedy
Tonearm
moves
al—
though
stylus
force
and
antiskating
force
are
at
zero:
a)
outward
b)
inward
During
change,
stop
and
start
operations,
noise
from
the
mechanism
can
be
heard
in
the
speaker
system
No
sound;
muting
short
circuit
across
pick
—up
leads
im
not
opened
Motor
will
not
shut—off
when
tonearm
im
on
arm
rest
Acoustic
feedback
With
mode
selec—
tor
in
"single"
and
short
spindle
in
place,
tonearm
does
not
move
in
toward
record
on
automatic
single—
play
operation
Records
do
not
drop
with
changer
spindle
in
place
Replacement
Parts
Anti—skating
out
of
adjustment
Too
taut
tonearm
leads
produce
a
twisting
force
Muting
switch
malad—
justed.
Distance
bet—
ween
contact
springs
and
shorting
contact
im
too
great
Muting
switch
contact
spring
spacing
too
small
Capacitor
across
power
switch
im
shorted
a)
Chassis
parts
(for
example
leads)
are
touching
base
cut—
out
b)
Connecting
cables
are
too
taut
Switch
spring
on
lock—
ing
slide
(212)
im
out
of
adjustment
Mode
selector
im
set
to
"single"
Adjust
skating
lever
so
that
skating
spring
applies
force
exactly
at
tonearm
pivot.
b)
Allow
some
slack
in
tonearm
leads.
Elend
contacts
so
that
in
the
neutral
pos—
ition
of
the
main
cam
the
spacing
between
contact
im
about
0.5
mm
or
0.02
inch.
Spray
contacts
with
preservative
(e.g.
"Kontakt
61")
and
check
alignment
of
short—
circuit
contacts.
Bend
contacts
so
that,
in
the
neutral
pos—
ition
of
the
main
cam
the
spacing
between
contacts
im
about
0.5
mm
or
0.02
inch.
Replace
capacitor
in
power
switch.
a)
Correct
cut—out
according
to
instructions
supplied
with
unit.
Move
cables.
b)
Allow
more
slack
in
cables,
or
lengthen.
With
the
unit
in
normal
upright
position,
adjust
spring
so
that
when
the
main
cam
im
rotated
the
raised
tab
on
the
switch
lever
is
just
cleard.
This
im
normal
No.
Part.No.
Description
Quan—
tity
1
215
470
Automatic
spindle
AS
12
1
2
213
895
Automatic
spindle
AU
3
1
3
227
001
Turntable
mat
complete
with
washer
1
4
227
003
Turntable
complete
with
mat
and
strobocope
ring
.
1
6
224
805
Speed
change
lever
left
complete
1
7
216
740
"C"
washer
H
7
x
0.8
1
8
225
209
Control
washer
complete
1
9
218
480
Bowed
lockwasher
1
10
133
734
Chassis
complete
1
11
214
047
Special
screw,
pierced
3
12
214
210
Shipping
screw
assembly
3
13
220
152
Plastic
clamp
3
14
210
586
Washer
3.2/7.0/0.5
St
3
15
210
472
Machine
screw
AM
3
x
4
3
16
213
512
Hex
screw
M
4
x
8
2
17
210
366
Hex
nut
BM
4
7
18
210
362
Hex
nut
BM
3
5
19
210
362
Hex
nut
BM
3
1
20
233
742
Blind
(cm),complete
1
233
743
Blind
(inch),
complete
1
21
213
512
Hex
screw
M
4
x
8
2
16
No.
Part.—No.
Description
Quan—
tity
R
R
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
1
2
210
210
200
200
209
200
201
200
210
224
200
200
230
200
200
220
220
201
225
200
233
231
201
210
210
210
215
227
225
225
225
217
210
217
230
230
230
233
221
227
216
230
218
216
210
227
210
233
216
217
218
210
233
233
225
233
227
233
217
218
233
229
229
231
217
217
217
213
213
227
227
227
225
227
225
225
624
624
713
711
934
718
632
712
366
947
721
728
406
723
722
163
213
101
106
543
738
992
132
182
630
197
430
007
096
197
197
504
362
439
859
917
916
732
486
589
831
063
827
881
353
000
362
736
810
601
321
469
737
731
145
741
569
735
600
894
733
720
738
775
386
381
385
260
471
014
012
013
321
015
916
915
Washer
4.2/7.0/0.3
Washer
4.2/7.0/0.3
Washer
Lockwasher
Sleeving
Compression
spring
Rubber
washer
Spring
mounting
Hex
nut
BM
4
Rest
ring
Threaded
piece
Compression
spring,
tonearm
side
Compression
spring
(yellow),
motor
Rubber
damping
block
Steel
cup
Spring
mounted
footing
complete
(
1
Centering
disc
Centering
pin
Washer
Retaining
ring
Tonearm
head
complete
Contact
plata
complete
Lift
Bowed
lock
washer
Washer
4.2/8/0.5
St
Ring
G
4
x
0.8
Mounting
TK
14
Ring,
complete
Dual
emblem
Switch
lever
right
complete
Switch
lever
right
complete
Stud
Hex
nut
BM
3
Web
Square—end
nut,
M
2.5
Shouldered
screw
Clamp
piece
Frame,
complete
Threaded
rod
Locknut
Locknut
Threaded
rod
Compression
ring
Lever
complete
Hex
nut
BM
2
Rest
complete
Hex
nut
BM
3
Cover,
complete
Bearing
for
tonearm
Locating
lauer
Hex
nut
Machine
screw
AM
3
x
3
Tonearm
complete
Weight,
complete
Stud
Bearing
complete
Clamp
bolt
Spring
housing,
complete
Setscrew
Lock
washer,dished
3.2/8
Bearing
frame,
complete
Pointer
Bearing
screw,
complete
Knob
complete
Tension
spring
Rest
lever,
complete
Roller
Pin
2
x
6
Machine
s/t
screw
8
2.9
x
6.5
Case,
upper
part
Case,
complete
Wiring
board
Glow
lamp
Case,
lower
part
Carbon
resistor
22
k2/0.25
W/10
%
Carbon
resistor
2.2
kg2/1.80
W/
5
%
side
set
.
4
pieces)
U•)
r•
-
)
c•
-
)
CsJ
111
II)
c—
CO
c—
Cs4
17
Fig.28
Exploded
view,
above
chassis
CD
-
)0 6
10<9 e/D,
(2
0
$
18
Fig.29
Exploded
view,
below
chassis
19
No.
Part.No.
Description
Quan—
tity
C
1
225
322
Foil
capacitor
68
nF/400
V/10
%
1
D
1
225
247
Silicon
diode
BY
183/300
1
95
228
111
Adjusting
screw
1
96
228
112
Adjusting
wheel
1
97
210
182
Lock
washer,
dished
1
98
228
113
Washer,
4.2/8.1
1
99
210
146
Lock
washer,
3.2
4
100
228
116
Regulating
plate
1
101
228
110
Speed
regulator
detent
1
102
228
115
Switching
segment
1
103
216
736
Compression
spring
1
104
225
193
Support
complete
1
105
210
475
Machine
screw
AM
3
x
5
7
106
216
746
Groove
detent
complete
1
107
210
642
Washer
4.2/10.0/1.5
St
1
106
210
361
Hex
nut
M
3
2
109
220
152
Plastic
clamp
1
110
210
586
Washer
3.2/7.0/0.5
St
3
111
210
475
Machine
screw
AM
3
x
5
7
112
200
447
Cable
clamp
1
113
210
475
Machine
screw
AM
3
x
5
7
114
217
751
Threaded
pin
M
2.6
x
8
1
115
218
275
Motor
pulley
complete
50
Hz
1
218
276
Motor
pulley
complete
60
Hz
1
116
210
220
Threaded
pin
M
2.6
x
3.5
1
117
216
278
Upper
housing
complete
1
118
220
806
Washer
4.1/12/0.7
F
1
120
216
276
Lower
housing
complete
1
121
218
326
Motor
complete
1
122
210
146
"C"
Washer
3.2
4
123
216
737
Compression
spring
1
124
218
629
Compression
spring
1
125
209
358
Ball
4
mm
Dia.
2
126
233
005
Wiring
board
complete
with
cover
1
127
233
007
Wiring
board
complete
1
128
233
006
Cover
for
wiring
board
1
129
210
501
Screw
bolt,
M
3
x
35
1
130
200
633
Lock
washer
1
131
218
237
Drive
pulley
1
132
200
100
Slide
washer
1
133
218
700
Swing
lever
1
134
217
596
Switch
lauer,
complete
1
135
218
702
Silicon
tube
1
136
233
734
Installation
plate,
complete
1
137
233
008
Mains
switch
UL
Cpl.
W.
special
capacitor
1
138
233
013
Switch
plate
UL
cpl.
W.
special
capacitor
1
139
223
625
Lock
washer
3.2
1
140
230
151
Slide
1
141
230
148
Switch
angle
1
142
230
355
Capacitor,
68
nF/250
V/20
%
1
143
230
296
Tension
spring
1
144
219
200
Spring
catch
1
145
232
248
Angle
lever
1
146
210
366
Hex
nut
BM
4
1
147
210
161
Toothed
washer,
4.3
2
148
211
614
Solder
lug
1
149
216
901
Shield
1
150
210
475
Machine
screw
AM
3
x
5
7
151
218
242
Muting
switch
complete
1
152
218
322
Rotor
complete
1
153
213
510
Insulating
tubing
2
154
227
010
Cover
with
deviating
prism
1
155
218
323
Stator
complete
1
156
211
553
Machine
screw
AM
4
x
48
2
157
217
530
Stand
1
217
801
Stand
complete
with
phone
jacks
1
158
210
469
Machine
screw
AM
3
x
3
a
159
210
145
"C"
Washer
2.3
14
160
210
145
"C"
Washer
2.3
14
161
210
142
"C"
Washer
1.2
1
162
218
787
Shut—off
lever
1
163
216
765
Friction
plate
1
164
210
145
"C"
Washer
2.3
14
165
218
295
Cam
wheel
complete
1
166
200
522
Snap
spring
1
167
233
011
Cover
UL
cpl.
(for
KS
4
w.
connection
plate)
1
168
210
498
Machine
screw
M
3
x
28
1
20
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