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Dual 1211 Service Manual

Dual 1211
22 pages
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Fig.
23
Symptom
Cause
Remedy
Symptom
Switch
latches
into
"stop"
po—
sition
when
tonearm
is
at
rest.
Cause
Too
much
clearance
between
tab
on
switch
arm
(221)
and
start
lever
(226).
Remedy
Adjust
tab
on
switch
arm
so
that
it
clears
start
lever
by
1/64"
when
main
cam
is
in
neutral
po-
sition.
During
change,
stop
and
start
operations,
noises
from
the
mechanism
can
be
heard
in
system
spea—
ker
Muting
switch
misadjus—
ted.
Distance
between
contact
springs
and
shorting
contact
is
too
great
Bend
contacts
so
that,
in
the
neutral
position
of
the
main
cam
the
spacing
bet—
ween
contacts
is
about
0.02
inch.
Clean
contacts
No
sound
Spacing
too
small
See
above
Motor
will
not
shut
off
Capacitor
across
power
Replace
capacitor
(0.1
µF,
700
V)
when
tonearm
is
on
arm
switch
is
shorted
rest
Acoustic
feedback
a)
Chassis
parts
(for
example
leads)
arm
touching
base
cut—out
a)
Correct
cut—out
according
to
instruc—
tions
supplied
with
unit.
Move
cables
b)
Connecting
cables
b)
Allow
more
slack
in
cables
are
too
taut
14

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Dual 1211 Specifications

General IconGeneral
Weight6.5 kg
Speeds33, 45 RPM
PlatterAluminum
Wow and Flutter<0.15%
Drive TypeIdler Wheel Drive

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