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  9. PERPETUUM EBNER PE 2020 Operating instructions

PERPETUUM EBNER PE 2020 Operating instructions

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Technical
Information
Service
Instructions
Manual
turntable
Automatic
turntable
PE
2020
Contents
Page
1
Technical
specifications
2
to
8
Functional
description
8
to
12
Adjusting
instructions
12+13
Pick-ups
14
Motor
wiring
diagram
161-17
Lubricating
instructions
10
aeasl
1
Power
consumption:
Voltages
and
frequency.
Speeds:
Speed
precision
control:
Turntable
platter:
Weight
Material
Diameter
Flutter
and
wow
(to
DIN
45507):
Rumble:
related
to
avelocity
of
10cm/sec
and
1,000cps
(to
DIN
45 500)
Signal
to
noise:
related
to
a
velocity
of
10cm/sec
and
1,000cps
(to
DIN
45500)
Automatic
turntable
Manual
turntable
Continuous
turntable
(repeat)
Automatic
record changer
Four-pole
induction
motor
SPM
4/15
with
minimum
stray
field
and central
suspension
with
vibration
dampers
8W
110/22OVAC,
500r60
Hz
162/3,
331/3
45,
78
rpm
+
3
°/
7i
lbs
(32
kg)
Zinc
die
casting
1129/64”
(291
mm)
±
0.1
%
43db
Pick-up arm
length:
Offset
angle:
Tangential
tracking
error:
with
optimum
adjustment
Tone
arm friction:
Vertical
tracking
angle:
Stylus
pressure:
Antiskating device:
Antiskating
correction:
Suitable
pick-ups
Pick-up
weight:
Chassis
dimensions
Installation
dimensions:
8/16”
(208
mm)
27°
max.
1.8°
0.07
p
horizontal
0.05
p
vertical
Adjustable
for
8
records
Steadily
adjustable
from
0
to
6p
Coupled
with
stylus
force
adjustment
For
differing
stylus
tip
radii
and
for
wet
and
dry
playback
For
all
pick-ups
with
1/2”
standard
mounting
facilities
3
to
15
g
14/32”
by
12”
(358
x
306
mm)
Height
above
mounting
board
with
changer
spindle
55/44”
(129
mm)
Depth
below mounting
board
35
/3z”
(80
mm)
Hi-Fl
manual
turntable
and automatic
turntable
PE2020
Technical
specifications
Mode
of
operation:
Motor:
58db
2
Functional
description
Speed
control
The
speed
is
selected
by
means
of
a
speed
selec
tor knob
(6)
that
is
rigidly
united
with
the
speed
selector
cam
(86).
The
speed
selector
cam
(86)
moves
the
idler
wheel
support
(83)
to
the
correct
height
with
respect
to
the
motor
pulley
(125).
Speed
precision
control
This
adjustment
is
possible
at
any
speed.
A
knurled
knob
(8)
provided below
the
speed
selector
knob
(6)
moves the
idler
wheel
support
(83).
The
four
steps
of
the
step
pulley
(125)
corresponding
to
the
four
turntable
speeds
are
tapered.
When
adjusting
the
precise
speed
±
3
%,
the
idler wheel
(61)
must
engage
in
the
middle
of
the
step
pulley
(125).
The
knurled
knob
(8)
has
a
red mark
that
must be
positioned
exactly
midway
between
+
and
—
when
making
this
adjustment.
Control
lever
Movement
of
the
control
lever
(32)
operates
the
starting
lever
(197)
through
a
brass
switching
roller
(176)
that
is
mounted
on
the
control
lever
bottom
assembly
(175).
The
starting
lever
(197)
frees the
ON/OFF
switch
(179)
so
that the
motor
(126)
is
connected
to
power
and
starts
running.
The
idler
wheel
(61)
is,
at
the
same
time,
pressed
against
the
drive
shaft
(125)
of
the
motor
(126)
and
against
the
inside
rim
of
the
turntable.
The
control
lever
(32)
releases
the
spring-loaded
ratchet
lever
(192)
which
is
thus
allowed
to
advance
the
reject
lever.
The
cam
of
the
spinning
turntable
(1)
engages
the
ad
vanced
tip
of
the
reject
lever.
The
control
cam
(128)
is
thereby
turned
to
such
an
extent that
the
pinion
of
the
turntable
meshes
with
the
toothing
of
the
control
cam
(128).
Following
one
control
operation,
all
the
control
elements
are
moved
to
the
position
required
for
the
following
function,
Pick-up
arm
movement
The
rising
portion
of
the
cam
track
of
the
control
cam
(128)
causes
the
feed
lever
(150)
to
lift
the
pick-up
arm
(10)
by
means
of
the
lift
rod
(57).
At
the
same
time,
the
pick-up
arm
(10)
is
frictionally
engaged
and
is
then
moved
by
the
succeeding
horizontal
movement
of
the feed
lever
(150).
Down
the
descending
portion
of
the
cam track
the
pick
up
arm
(10)
is
lowered
and
disengaged
from
the
feed
lever
(150).
Item
No,.
6
8
61
82
83
85
86
125
EE
Description
Speed
selector
knob
Knurled
knob
Idler
wheel
Drawspring
for
idler
wheel
Idler
wheel
support
Shift
fork
subassembly
Speed
selector
cam
Motor
pulley
Idler
wheel
height
3
Item
No.
Description
1
Cast
metal
turntable
platter
2
Turntable
matting,
outside
ring
3
Turntable
matting,
center
ring
5
Single-play
spindle
6
Speed
selector
knob
8
Knurled
knob
9
Pick-up
arm
counterweight
10
Pick-up
head
with
pick-up
arm
tube
21
Pick-up arm
tracking
weight
adjustment
knob
29
Pick-up
arm
lock
32
Control
lever
34
Feeler
pin,
long
46
Slide
carrier
assembly
56
Antiskating
precision
control
knob
153
Sensing
pin
D
Stylus
pressure
zero
adjustment
E
Landing
point
F
Vertical
tracking
angle
Record dropping
The
control
cam
(128)
operates
the
drop
lever
(108)
for
the
control
of
the automatic
record spindle
(4).
As
the
push
rod
extension
(96)
is
pulled
down,
the
supporting
levers
are
retracted
to
release
the
record
which
is
thus dropped
on
the
rotating
turn
table.
Record
size
discrimination
The
upper
locating
lever
(42)
as
controlled
by
the
control
cam
(128) is
moved
inside
the
operating
range
of
a
feeler
pin
(34)
rotating
with
the
turntable.
Depending
on
the
size
of
the record, the
feeler
pin
(34)
is
pressed
down
to
a
greater
or
smaller
extent.
The
level
of
that
pin
controls
the
different
distance
by
which
the locating
lever
(42)
is
restored
for
the
inward
movement
of
the
pick-up
arm
(10)
to
its
position
above
a
7”
or
10”
record.
In
the
presence
of
a
12”
record,
the
upward
movement
of
the
sens
ing
lever
(154)
as
released
by
the
control
cam
(128)
is
limited.
The
upper
locating
lever
(42)
is
locked
during
its
return
movement
and thus
reduces
the
inward
movement
of
the
pick-up
arm
(10)
to
the
starting
grooves
of
the
12
record
Tripping
As
the
pick-up arm
(10)
moves
towards
the
center
of
the
record,
the
trip
link
(186)
supported
on
the
pick-up
arm
locator
segment
(184)
impells
the
reject
lever
towards
the
turntable
cam.
After
the
stylus
has
reached
a
record diameter
of
about
423/32”
(120
mm),
the
reject
lever
touches
the
rotat
ing
cam
for
the
first time
and
is
repelled
by
the
latter
until
the
lead-out
groove
with
its
higher
pitch
causes
the
reject
lever
to
be
engaged
by
the
cam
of
the
turntable
(1),
thus
starting
the
control
cam
9
0
21
153
E
10
29
F
46
32
(128),
4
Item
No.
Description
6
Speed
selector
knob
8
Knurled
knob
9
Pick-up
arm
counterweight
10
Pick-up
head
with
pick-up
arm
tube
21
Pick-up
arm
tracking weight
adjustment
knob
Pick-up
arm
lock
Upper
control
lever
Upper
locating
lever
Slide
carrier
assembly
Antiskating
precision
control
knob
Idler
wheel
Washer
for
Filtister
head
Fillister
head
Fillister
head
Motor
pulley
Sensing
pin
A
Locating lever
eccentric
B
Sensing
lever
C
Pick-up
arm
pivot
screw
D
Pick-up
arm
tracking
weight
E
Landing
point
F
Vertical
tracking
angle
P
Trip
link
guide
T
Upper
locating
lever
Automatic
shut-off
After
the
last
record
has
been
played,
the
pick-up
arm
(10>
returns
to
the
pick-up arm
rest
(30>
and
is
not moved
inward
again.
Because
of
the
absence
of
records,
the
final
shut-off
is
initiated
inside
the
automatic
record
spindle
(4).
This
has
the effect
that the stop
switch
(129)
on
the
control
cam
(128)
is
no
longer
operated
by
the
shut-off lever
(113).
Due to
the
unchanged
position
of
the
stop
switch
(129),
the
feed
lever
(150)
is
directed
into
the
shut
off
track
of
the
control cam
(128).
In
the
course
of
the
shut-off
procedure,
the
idler
wheel
(61)
is
with
drawn
from
the
motor
pulley
(125)
and
the
inside
rim
of
the
turntable
and
the
record
player
is
dis
connected
from
mains power.
Automatic
single-play
By
inserting
the
single-play
spindle
(5),
the
auto
matic
turntable
becomes
a
fully
automatic
single-
play
turntable.
Depending
on
the
size
of
the
re
cord,
the
pick-up
arm
lands
within
the
standardized
area
of
the
lead-in
groove
as
in
the
case
of
changer
operation.
Moreover,
the
single-play
spindle
(5).
operating
through
a
flexible
pulling
wire.
actuates
the
cueing
lever
(159)
and
thus
reduces
the
height
of
the
pick-up arm.
The
centering
portion
of
the
single-play spindle
rotates
with
the
turntable
(1)
and
thus
avoids
any
friction
at
the
record.
29
32
42
46
56
61
62
64
65
66
125
153
idler
wheel
screw
4
x
8
screw
3
x5
screw
4
x
8
Item
No.
Description
Lower
locating
lever
Adjusting
arm
Idler
wheel
support
Shift
fork
Speed
selector
cam
Push-rod
extension
Drop
lever
Shut-off
teyer
Shade&pole
motor
Control
cam
Stop
switch
Shorting
cam
Muting
switch
Feed
lever
Cueing
sleeve
Control
lever
Switching
roller
ON/OFF
swttch
Pick-up arm
locator
segment
Trip
link
Ratchet
lever
Starting
lever
Actuator
EE
Idler
wheel
height
K
Switch
operating
lever
Manual
single
play
When moving
the
upper
control
lever
(32)
to
“lift”,
the above-mentioned
operations
ensue
and,
in
addition, the
horrzontal
switch
(131),
for
suppress
ing
the
horizontal
pick-up arm
movement,
is
moved
to
its
respective
operating
position,
while
a
gap
is
produced
in
the
tooth
rim
by
withdrawing
the
tooth
segment
(130).
The
movement
of
the
control
cam
(128)
is
interrupted
and
the
pick-up
arm
(10)
re
mains
in
its
lifted
position
in
frictional
engagement
above
the
pick-up arm
rest
(30).
From
this
position,
the
pick-up
arm
(10)
can
be
manually
moved
to
any
position
to
be
lowered
on
the
record.
Stop
If
the
upper
control
lever
(32) is
moved
to
stop”
the
actuator
(203)
brings
the
dropping
mechanism
out
of
engagement
so
that
no
additional
records
are
dropped.
The
shut-off
lever
(113)
is
not
allowed
to
move
to
operating
position;
the
stop
switch
(129)
is
maintained
in
its
position
and
frees
the
cam track
for
the automatic
final
shut-off.
Muting
switch
During
the
changing
cycle,
the
two
channels
are
shorted
against chassis
to
avoid
disturbing
extraneous
noise
in
the loudspeaker.
The
muting
switch
(135)
is
operated
by
the shorting
cam
(132)
provided
at
the
outside
edge
of
the
control cam
(128).
5
71
81
83
85
86
96
10
126
128
129
132
135
150
163
175
176
179
184
186
192
197
203
6
Item
No
9
21
Description
Pick-up
arm
counterweight
Pick-up arm
tracking weight
adjustment
knob
46
Slide
carrier assembly
56
Setting
knob for
antiskating precision
control
assembly
D
Zero-adjustment
HH
Eccentric,
tracking
weight
Pick-up
arm
The pick-up
arm
is
balanced
by
means
of
the
counterweight
by
radial
movement
of
the latter
on
the
tail
end
of
the
pick-up
arm.
The
pick-up
with
the
slide
carrier
must
be
incorporated
for
this
adjust
ment.
For
protecting
the
pick-up
arm
bearing
against
shocks and
for
absorbing
vibrations,
the
counter
weight
is
elastically
mounted
to
the
pick-up
arm
tube.
The
tracking
behaviour
of
the
pick-up arm
and
thus the
most
important
quality
characteristic
of
the
pick-up
arm
is
determined
by its
bearings.
To
assure
the
minimum
possible
friction
for
the
horizontal movement
of
the
pick-up
arm, we
have,
therefore,
used
a
superfine
twin
ball-bearing,
the
brasses
of
which
have
an
extra-fine
finish.
The
bearing
permitting
the
vertical movement
of
the
pick-up
arm
also
consists
of
two
superfine
ball-
bearings
with
a
specially
treated
surface.
The
very
small
frictional
forces
of
the
pick-up
arm
are
of
extreme
importance
for
the
antiskating
device.
Dependability
features
If
the
horizontal
movement
of
the
pick-up arm
(10)
is
interfered
with
or
if
the
unit
is
started
while
the
pick-up arm
(10)
is
still
locked,
this
cannot
affect
the
operation
of
the
unit
because
the
pick-up
arm
(10)
is
connected
to
the
operating
mechanism
for
the
horizontal
movements
by
means
of
a
slipping
clutch
(184).
The
pick-up arm
lifting
elements
are
resilient
to
permit
the
lifted
pick-up
arm
(10)
to
be
pressed
down
without
allowing any
permanent
deformation
to
interfere
with
the
proper
operation
of
the
unit.
When
the
unit
is
started
without
a
record
on
the
turntable,
the
pick-up arm
(10)
remains
on its
rest.
The
feeler
pin
(34)
and
the
sensing
lever
(154)
remain
unaffected
by
a
recording
during
the
sens
ing
operation. Since the
feeler
pin
maintains
its
position,
the
lower
locating
lever
(151)
is
not
repelled
so
that the
pick-up arm
is
prevented
from
moving
in
on
the
record.
Chassis
plate
The
chassis
plate
is
a
laminated board.
A
032”
(08
mm)
thick
aluminium
sheet
is
pressed
upon
the
.06”
(1.5
mm)
steel
plate,
using
a
heat-sensitive
adhesive
at
a
high
temperature.
This
ensures
a
high
degree
of
rigidity
and minimizes
resonance
N
21
HH
0
7
Steel
ball
.04”
(1
mm)
Pivot
screw
Cap
for pivot
screw
Ball
race
for pick-up
arm
bearing
Bearing
bushing
for
pick-up
arm
Lower
tapered
bushing
Hexagon
nut
M
5.8
x
0.35
Repeat
After
unlocking
the
changer
spindle,
the record
changer
will
play
a
record and
then
repeat
it
over
and
over
again.
The
next
record
will
only
be
dropped
after the
changer spindle
has
been
locked.
Antiskating
device
Since the
pick-up
arm
is
not
infinitely
long
and
since
the
pick-up
head
is
arranged
to
form
a
certain
angle
with
the
pick-up
arm
tube,
a
small
force
results
at
the
pick-up arm
that
tries
to
impeil
the
pick-up arm
towards
the
center
of
the
record.
This
skating
force,
as
t
is
called,
has
the
effect
that
the
stylus
exerts
more
pressure
on
the inside
edge
than
on
the
outside
edge
of
the
record
groove.
The
skating
force
is
a
function
of
the
stylus
pres
sure,
the
stylus
tip
radius
and
the
frictional
con
ditions
existing
between
the
stylus
and the
record.
The
antiskating
adjustment
is
made
by
adjusting
the
stylus
force,
This
is
done
by
means
of
a
spring
in
axial
alignment
with
the
pick-up
arm.
The
anti-
skating
device
is
controlled
by
means
of
a
control
knob.
Corrections are needed
where
different
stylus
tip
radii,
elliptical
needles
or wet
playback
are
used.
13
23
22
25
26
Item
No.
Description
13
17
18
22
23
25
26
8
Adjusting
instructions
AA
Friction
of
feed
lever
BB
Muting
switch
retaining
screw
CC
Feed
lever
lug
DD
Feed
lever
guide
post
0
Locator
segment
eccentric
pin
R
Shut-offiever
lug
S
Lift
rod
U
Pick-up
arm
bearing
nut
V
Antiskating
device
W
Lift
rod
hexagon
nut
X
Cueing lever
Y
Friction
spring
Z
Antiskating
correction
28
Antiskating
spring
YY
Pick-up
arm
locator
segment
Adjusting
instructions
Landing
position
of
needle
on
record
is
not
con
stant
Cause:
Remedy:
Feed
lever
(150)
is
out
of
adjustment
Adjust
the
guide post
(DD)
at
the
feed
lever.
Adjustthetone
arm
height
by
means
of
the
guide post
(DD)
of
the
feed
lever
(150)
to
about
.04”
(1
mm)
in
the
upper
position
of
the
feed
lever
and
with
inserted
record spindle.
The
amount
of
tone
arm
height
is
visible
in
the
slot
(8)
of
the
guide
bushing
(1
63)
With
the automatic
turntable
spindle inserted,
the
edge
of
the
pin
is
in
about
the
middle
of
the
lower
slot
(5).
After
the
adjustment,
the
guide post
(DD)
must be
locked
by
means
of
the
locknut.
Adjust
the
Tone
arm
height
with
the
pick-up
arm
unlocked.
When
checking
the
parts,
make
sure
to
see
that
the feed
lever
has
a
little
play
in
its
bearing.
The friction
covering
of
the
friction
spring
(Y)
of
the
friction
bearing
must
be
seated
on
the
pick-up
arm
locator
segment
(YY)
in
the
middle
of
its
cusp.
Adjusting
tools:
Screwdriver,
hexagon
wrench
5.5mm
Changing
cycle
occurs
too
early
Cause:
Trip
link
is
adjusted
too
close
to
reject
lever
Remedy:
Adjust
trip
link
as required
by
means
of
the
eccentric
on
the
pick-up
arm
locator
segment
Begin
of
tripping
cycle
The
eccentric
pin
(Q)
on
the
pick-up
arm
locator
segment
makes
it
possible
to
change
the
position
of
the
trip
link
and
thus
to
advance
and
retard the
begin
of
the
tripping
cycle. The tripping cycle,
i.
e.
the
rejection
of
the
trip
link
should
occur
at
a
diameter
of
423/32”
(120 mm)
±
13/64”
(5
mm).
The
position
of
the
trip
link
(186)
relative
to
the
reject
stud can
be
adjusted
by
moving
the
trip
link
guide
(P)
as
required.
Loosen
the
fastening
screw
in
the
first
place
The
trip
link
guide
(P)
can
be
moved
in
the
longitudinal
slot
until
the
trip
link
does
no
longer
change
its
position
when
the
control
cam
continues
to
advance.
Adjusting
tools:
5.5
mm
hexagon
wrench,
screwdriver
Item
No.
Description
pliers