LENCO L-78 User manual
Hi-Fi
Record
Player
L78
Operating
instructions
Features
The
Lenco
L
78
Record
player
is
a
precision
instru-
ment
of
true
Hi-Fi
quality
which
will
satisfy
even
the
most
demanding
music
lover.
The
instrument
can
be
used
for
stereo
as
well
as
monophonic
listening.
The
usual
speeds
of
167/s,
331/3,
45
and
78
RPM
can
be
pre-set
in
click-stops
and
the
speed
can
also
be
varied
continuously
from
30—86
RPM.
The
light
tonearm
of
the
L
78
is
a
first-class
example
of
fine
mechanical
precision,
and
guarantees
clear,
undistorted
sound
reproduction,
with
the
greatest
possible
protection
for
your
records.
The
tonearm
is
lowered
onto
the
record
by
a
hydraulically
dam-
ped
lowering
device
—
thereby
eliminating
the
pos-
sibility
of
record
or
needles
being
damaged
whilst
putting
the
tonearm
onto
the
record.
The
unit
is
SEV,
DEMKO,
NEMKO,
SEMKO
and
CSA
tested
and
approved.
Technical
Description
The
very
silent
4-pole
motor
(44)
is
spring
mounted
onto
a
rigid
steel
baseplate.
The
dynamically
ba-
lanced
turntable
is
made
of
die-cast
zinc,
and
weighs
4
kg.
The
power
is
transmitted
from
the
conical
motor
shaft
(43)
to
the
turntable
by
a
rubber
covered
idler
wheel
(41).
The
speed
is
changed
by
moving
the
idler
wheel
on
the
motor
shaft.
The
miniature
ball-bearings
fitted
into
the
tonearm
allow
for
a
free
sideways
movement,
and
the
knife-
edge
bearing
keeps
friction
to
a
minimum.
An
adjustable
sliding
weight
(5)
enables
one
to
set
the
stylus
pressure
exactly
to
suit
the
cartridge
being
used.
An
automatic
brake
(23)
comes
into
operation
when
the
turntable
is
switched
off.
All
tonearms
can
be
supplied
with
the
anti-skating
device
(3,
28,
29).
Every
L78
is
supplied
with
a
centre
piece
for
re-
cords
with
a
large
centre
hole,
a
stroboscope
disc
for
exact
setting
of
speed,
a
stylus-adjusting
gauge
for
accurate
setting
of
stylus
overhang,
a
set
of
shock-absorbing
mounting
supports
and
a
cut
ou!
template
(only
required
for
chassis
model).
Unpacking
the
L
78
When
unpacking
check
for
possible
damage.
The
L78
is
toroughly
checked
and
tested
before
leav
ing
the
factory.
Any
damage
which
may
have
beer
caused
during
transport
should
be
reported
imme-
diately.
In
this
connection
we
would
like
to
point
out
tha!
the
upper
part
of
the
knife-edge
balance
has
been
put
into
the
lower
part,
i.
e.
it
is
held
there
only
by
the
weight
of
the
arm.
The
resulting
movemen'
which
can
be
felt
just
above
pedesta!
spindle
when
lifting
the
arm,
is
a
normal
and
necessary
feature
of
this
type
of
bearing
and
should
not
be
mistaken
for
a
fault
or
damage.
Preparation
for
Use
The
L78
is
available
on
a
wooden
base,
or
as
a
build-in
model.
To
avoid
damage
of
the
turntable
spindle
during
transportation,
the
turntable
is
packed
separately
in
a
cardboard
sieeve.
Models
mounted
on
a
wooden
base
are
delivered
fully
assembled
and
can
therefore
be
operated
without
any
difficulty.
The
build-in
model
must
be
assembled
on
the
spot,
and
the
instructions
on
the
cut out
template
should
be
carefully
followed.
On
all
models
the
spring-mounted
motor
(44)
has
beer
secured
for
transit.
This
has
been
done
by
means
of
two
red
securing
screws
(18)
on
the
baseplate
under
the
turntable
and
these
should
be
losened
until
the
motor
is
freely
sprung.
The
L78
is
de-
signed
for
use
with
220
V
50
Hz.
A
C
mains
but
can
be
supplied
with
a
switchable
motor
for
use
on
115,
145
and
225
V
mains.
To
ensure
perfect
running,
important
bearing
and
driving
points
should
be
cleaned
if
necessary
be-
fore
putting
on
the
turntable.
The
important
points
are:
Turntable
spindle,
underside
of
turntable,
mo-
tor
shaft
and
the
rubber
surface
of
the
idler
whee
(41).
A
clean,
dry,
non-fluffy
cloth
should
be
used
for
cleaning.
Only
if
oil
or
grease
spots
are
present
should
the
cloth
be
sparingly sprinkled
with
methy-
lated
spirits
or
carbon
tetrachloride.
(Benzine
musi
not
be
used.)
The
turntable
should
now
be
placed
on
the
spindle
and
the
rubber
mat
on
the
turntable.
Push
the
large,
counterweight
(1)
on
to
the
rear
end
(30)
of
the
pick-up.
Interchangeable
Plug-in
Heads
The
L
78
is
usually
supplied
with
an
empty
plug-in
head,
so
that
each
user
may
select
his
own
pick-up
cartridge.
The
empty
plug-in
head
(11)
is
complete
with
mounting
screws
for
the
popular,
Internation-
ally
standard
cartridges.
If
various
cartridges
are
selected
(e.
g.
to
play
older
78
rpm
shellac
records),
we
suggest
that
a
separate
plug-in
head
is
pur-
chased
for
each
one
to
facilitate
the
change
from
one
cartridge
to
another.
Assembling
of
the
Cartridge
into
the
Plug-in
Head
The
cartridge
should
be
mounted
onto
the
mounting
plate
with
the
assembly
material
provided.
The
plug-in
head
should
then
be
put
onto
the
tone-
arm
and
secured
by
knurled
ring
(10).
Place
the
semi-circular
cut
out
in
the
template
round
the
pedestal
of
the
pick-up
arm
and
the
hole
A
over
the
centre
spindle
of
the
turntable.
Withdraw
the
tonearm
from
the
securing
clip
(9)
push
it
towards
the
centre
of
the
turntable
and
lay
it
gently
on
the
cardboard.
Loosen
screw
(14)
on
pick-up
the
head
(11).
Slide
the
small
mounting
plate
with
the
cartridge
in
the
plug-in
head,
until
the
point
of
the
needle
is
di-
rectly
on
the
black
line
of
the
setting
gauge,
tighten
the
screw
(14).
Remove
plug-in
head
from
tonearm
and
connect
pick-up
leads
to
cartridge.
Right
channel:
R
=
red
Right
earth
channel:
GR
green
Left
channel:
L
white
Left
earth
channel:
GL
=
blue
Put
the
plug-in
head
onto
the
tonearm
again
and
secure
with
ring
(10).
Mounting
Material
2
screws
0.118
inches
long
2
screws
0.314
inches
long
2
screws
0.374
inches
long
2
screws
0.5
inches
long
2
distances
bushes
0.137
inches
long
2
mounting
screws
Setting
of
Stylus
Pressure
Setting
of
the
stylus
pressure
is
achieved
by
means
of
the
two
weights
(1,
5)
at
the
rear
end
of
the
tone-
arm.
The
large
weight
(1)
is
used
to
balance
out
the
tonearm,
whilst
the
small
weight
(5)
is
used
to
set
the
stylus
pressure.
1.
Place
the
small
weight
right
at
the
back
of
the
outrider.
2.
Balance
out
the
tonearm
by
moving
the
large
weight
(1)
along
the
rear
end
of
the
arm
until
the
arm
floats
parallel
to
the
record.
3.
The
recommended
stylus
pressure
for
the
parti-
cular
cartridge
being
used
is
then
set
with
the
small
weight
(5).
Stylus
pressure
is
increased
by
moving
the
weight
forward
from
its
null
point
at
the
end
of
the
outrider.
Each
notch
on
the
out-
rider
represents
0.5
P.
(P
=
pond
which
is
equi-
valent
to
grams).
in
order
to
minimise
distortion
we
suggest
that
too
low
stylus
pressures
be
avoi-
ded.
We
recommend
that
the
stylus
pressure
be
set
to
about
20
%
below
the
maximum
pressure
advised
by
the
manufacturer
of
the
particular
cartridge
being
used.
Extremely
low
stylus
pres-
sures
should
also
be
avoided
in
order
to
reduce
record
wear,
as
such
low
pressures
tend
to
cause
the
stylus
to
rattle
in
the
record
groove,
thus
causing
unnecessary
record
wear.
Table
1
of
this
instruction
booklet
contains
details
of
the
best
stylus
pressures
and
details
of
the
styl-
us
dimensions
of
a
range
of
pick-up
cartridges.
To
set
the
Arm
Lifting
Device
1.
Place
a
record
onto
the
turntable.
2.
Move
the
tonearm
gently
by
hand
until
the
needle
of
the
cartridge
is
just
above
the
first
groove
of
the
record.
3.
Move
the
arm-lifting
device
(8)
forward.
4.
Turn
screw
(25)
on arm-lifting
device
until
the
distance
between
it
and
the
rubber
nipple
on
the
tonearm
is
about
2
mm.
5.
Place
the
pick-up
arm
on
to
the
pick-up
rest
(9).
The
needle
of
the
cartridge
must
not
touch
the
On/Off
switch
(12).
If
necessary
adjust
the
height
of
the
pick-up
rest
by
loosening
the
screw
in
the
bush
at
its
base.
Electrical
Connection
The
shielded
pick-up
cable
(37)
is
próvided
with
a
standard
plug
which
can
be
connected
to a
loud-
speaker
or
radio.
This
connection
is
indicated
as
«GRAMMO»,
«TA»,
«PICK-UK»
or
«Q»
on
the
radio.
Later
models
of
amplifiers
or
radios
of
European
origin
have
been
fitted
with
a
standard
socket
which
fits
the
L78.
To
connect
to
other
or
older
models
with
different
sockets
a
shielded
interme-
diate
cable
should
be
used.
When
the
unit
has
been
connected
(38)
to
the
electric
mains
it
is
ready
for
use.
Antl-Skating
Device
Modern
pick-up
design
for
geometrical
reasons
re-
sults
in
a
force
being
imparted
on
to
the
stylus
of
the
pick-up
cartridge
by
the
record,
which
pulls
it
towards
the
centre
of
the
record.
This
force
is
cal-
led
skating
force.
Its
effect,
especially
with
low
sty-
lus
pressures,
is
to
cause
the
stylus
to
jump
seve-
tal
grooves
when
the
arm
is
set
on
to
the
record.
The
different
pressures
on
the
two
sides
of
the
groove
caused
by
the
skating
force
also
introduce
a
certain
amount
of
distortion.
This
distortion,
as
well
as
the
jumping
of
the
stylus,
can
be
avoided
when
the
skating
force
is
compensated
for.
For
this
reason
an
anti-skating
device
is
supplied
with
the
L78
Arm.
Heavy
Type.
Assembly
of
the
anti-skating
device
on
tonearm:
Notches
Fig.
1
Press
bent
steel
rod
(3)
in
hole
«A»
on
top
of
tone-
arm.
Fig.
2
Push
semi-circular
clamp
(29)
on
tonearm
support
«B»
as
per
drawing.
The
pip
on
the
semi-circular
clamp
must
locate
into
the
hole
on
the
tonearm
support.
Setting
of
the
Anti-Skating
Device
Before
setting
the
anti-skating
device,
check
that
the
arm
has
been
correctly
set
as
described
earlier.
Setting
of
the
correct
anti-skating
force
depends
on
two
factors,
namely
a)
the
stylus
pressure,
b)
ihe
tn
radius
of
the
stylus
of
the
cartridge
being
used.
Two
separate
anti-skating
weights
are
supplied
with
the
L
78,
namely
a
1
g
and
a
4
g
weight.
A
list
of
settings
for
all
stylus
pressures
and
tip
radii
is
shown
in
Table
2
on
the
last
page.
Example
To
set
the
anti-skating
force
for
a
cartridge
for
which
the
recommended
stylus
pressure
is
1.5
pond,
and
of
which
the
stylus
has
a
tip
radius
of
18
mu.
(.0007"'),
Table
2
shows
that
for
a
stylus
pressure
of
1.5
pond
and
stylus
tip
radius
of
.0007"
the
1
g
weight
should
be
used
on
Notch
6.
Therefore
hang
the
1
g
weight
(28)
over
Notch
6
passing
the
thread
over
the
adjacent
hollow
in
the
cork-screw
(29)
so
that
it
hangs
freely.
Anti-skating
Cartridge
s
bias
notch
ADC
220
(rot)
ADC
990
XE
Shure
M
75
MB
II
Goldring
800
Lenco
M
94
Playing
of
Records
1.
Set
the
speed
change
lever
to
the
desired
speed
and
check
that
it
is
properly
engaged.
Every
long
playing
record
has
its
speed
33'/⁄3
or
45
clearly
shown.
2.
Move
the
ON/OFF
knob
(12)
from
the
OFF
posi-
tion
to
the
ON
position
and
the
turntable
wil
start
to
revolve.
3.
Piace
the
pick-up
arm
on
to
the
lifting
arm
sc
that
the
stylus
point
is
above
the
run-in
groove
of
the
record.
4.
Move
the
arm
lift
lever
(8)
forwards
and
the
pick-
up
arm
will
automatically
be
lowered
on
to
the
record.
In
order
to
play
records
with
large
cen
tre
hole,
use
the
adaptor
supplied
for
the
pur
pose.
5.
The
turntable
L78
has
an
automatic
stop
com.
bined
with
an
automatic
lift
of
the
pick-up
at
the
end
of
the
record,
as
long
as
the
knob
at
the
rear
adjacent
to
the
pick-up
pedestal
is
set
tc
“automatic”,
6.
If
this
automatic
facility
is
not
required,
such
as
for
playing
language
courses,
set
the
knob
tc
"MAN"
(manual).
At
the
end
of
the
record,
move
the
arm
lift
lever
(8)
backwards
and
the
pick-up
will
lift
off
the
record.
Turn
the
ON/OFF
knot
(12)
from
ON
to
OFF,
and
the
unit
will
be
switch-
ed
off.
Replace
the
pick-up
arm
on
the
pick-up
rest
Should
you
wish
to
interrupt
the
record
during
playing,
proceed
as
described
in
6
above.
Checking
and
Adjusting
the
Turntable
Speed
1.
Place
the
stroboscope
{round
aluminium
disc
with
three
rings
of
dark
and
light
stripes),
that
is
provided
with
each
unit,
on
the
turntable.
2.
Start
the
motor
and
illuminate
the
stroboscope
with
a
light
from
a
lamp
connected
to
the
mains
It
is
suggested
that
the
room
be
darkened
to
facilitate
the
setting.
If
the
speed
setting
of
the
speed
control
lever
is
correct,
then
all
the
dark
lines
on
the
ring
for
the
corresponding
speed
or
the
stroboscope
will
appear
to
stand
still.
if
how
ever
they
move,
then
it
is
a
sign
that
the
speec
setting
has
altered.
The
speed
can
easily
be
cor-
rected
by
lifting
the
speed
control
lever
out
o
its
catch
and
moving
it
slightly
to
either
right
or
left.
When
the
speed
is
correct
the
stripes
on
the
stroboscope
will
appear
to
stand
still.
If
an
inten-
tional
deviation
from
the
pre-set
speed
is
requi-
red
(e.
g.
if
a
musical
instrument
is
being
played
and
the
pitch
of
the
record
is
to
be
adjusted
to
that
oí
the
instrument),
then
the
speed
can
be
altered
in
the
same
way.
If
the
speed
is
to
be
re-
set,
i.
e.
a
re-adjustment
of
the
catch
for
the
cor-
responding
speed
is
required,
then
the
following
procedure
should
be
adopted:
a)
Loosen
slightly
(not
more
than
two
turns)
the
screw
at
the
side
of
the
corresponding
catch
b)
Set
the
speed
change
lever
in
the
catch
and
adjust
the
speed
until
the
correct
speed
is
reached.
c)
Carefully
lift
the
speed
change
lever
out
of
the
catch
without
altering
the
position
of
the
catch,
and
re-tighten
the
screw.
Maintenance
of
Your
Record
Player
The
bearings
built
into
the
unit
are
self-lubricating
and
require
no
further
attention.
22
23
2425
26
27
28 29
30
|
N
1
Gegengewicht
2
Schraube
für
Gegengewicht
3
Bügel
für
Antiskating
4 Flansch
5
Gewicht
für
Auflagedruck
6
Schraube
für
Auflagegewicht
7
Skala
für
Auflagedruck
8
Armlifthebel
9
Tonarmstütze
10
Rändelmutter
11
Ansteckkopf
12
Schalter
Ein—Aus
13
Griff
zu
Ansteckkopf
14
Befestigungsschraube
für
Montageplattchen
15
Tourenzahlgestänge
16
Fúhrungshebel
17
Tourenzahlregulierhebel
18
Motor-Transportsicherungs-
schrauben
19
Zwischenradfeder
20
Blindschraube
(LENCOCLEAN)
21
Sperrhebel
22
Halter
mit
Blattfeder
23
Schieber
mit
Bremsgummi
24
Schalthebel
zu
Abstell-
automatik
25
Rändelschraube
zum
Ein-
stellen
des
Armhebers
26
Arretierknopf
für
Umstellung
manual—automatic
27
Armheber
28
Antiskatinggewicht
29
Halter
für
Antiskating
30
Federnde
Führungsachse
31
Kipphebel
zu
Ein—Aus-
Schalter
32
Support
komplett
33
Armhebekurve
34
Kipphebel
fúr
Armheber
35
Pick-up-Hebel
36
Arretierhebel
37
Tonarmkabel
38
Netzkabel
39
Netzschalter
40
Transportsicherung
41
Zwischenrad
42
Viskositätsgedämpfte
Federaufhängung
43
Konische
Motorwelle
44
Motor
45
Spannungswähler
46
Tellerachslager
47
Schaltstange
zu
Ein—Aus-
Schalter
1
Contrepoids
2
Vis
pour
contrepoids
3
Support
pour
anti-skating
4
Collier
5
Poids
pour
le
réglage
de
la
force
d'appul
6
Vis
pour
le
poids
pour
réglage
de
la
force
d'apul
7
Bras
gradué
pour
la
force
d'appul
8
Levier
du
löve-bras
9
Support
du
bras
10
Collier
de
fixation
de
la
coquille
11
Coquille
amovible
12
Manette
de
mise
en
marche
13
Manette
de
la
coquille
14
Vis
de
montage
pour
la
plaquette
de
la
coquille
15
Coulisseau
du
changement
de
la
vitesse
16
Barre
de
guidage
17
Levier
de
changement
de
vitesse
18
Vis
de
sécurité
19
Essort
20
Ecrou
borgne
pour
LENCOCLEAN
21
Levier
de
bloquage
22
Support
avec
ressort
á
lames
23
Verrou
avec
suppresseuse
gommés
24
Levier
d'arrêt
automatique
25
Molette
pour
le
réglage
du
lóve-bras
26
Manette
pour
le
changement
manuel-automatique
27
Leve-bras
28
Poids
de
compensation
29
Support
d'anti-skating
30
Axe
guide á
ressort
de
torsion
31
Culbuteur
pour
interrupteur
ON/OFF
32
Support
complet
33
Mécanisme
du
lóve-bras
34
Culbuteur
pour
léve-bras
35
Levier
36
Levier
d'arrét
37
Cáble
du
pick-up
38
Cordon
secteur
39
Interrupteur
réseau
40
Sécurité
de
transport
41
Poulie
Intermediaire
42
Ressorts
de
suspension
á
amortissement
visquex
43
Axe
conique
du
moteur
44
Moteur
45
Changement
de
tension
46
Roulement
d'axe
du
plateau
47
Levier
pour
interrupteur
ON/OFF
1
Counterweight
2
Screw
for
counterweight
3
Steel
for
antiskating
4
Pedestal
base
5
Weight
for
adjustable
stylus
pressure
6
Screw
for
pressure
weight
7
Calibrated
stylus
pressure
bar
8
Arm-lifting
lever
9
Pick-up
rest
10
Knurled
ring
to
secure
plug-in
head
11
Plug-in
head
12
ON/OFF
switch
13
Handle
of
plug-in
head
14
Fixing
screw
for
adjustable
cartridge
mounting
platform
15
Speed
regulating
mecanism
16
Guide-lever
17
Speed
regulating
lever
18
Transit
safety
screws
19
Idler
wheel
spring
20
Hole
for
LENCOCLEAN
spindle
21
Blocking
lever
22
Clamp
with
laminated
spring
23
Slider
with
suppressor
rubbe
24
Switch-lever
for
shut-off
switch
25
Knurled
screw
for
lowering
arm
26
To
stop
knob
to
switch
over
MANUAL
-
AUTOMATIC
27
Pick-up
lowering
arm
28
Antiskating
weight
29
Support
for
antiskating
device
30
Rear
end
of
the
pick-up
31
Toggle
for
ON/OFF
switch
32
Support
complet
33
Hydraulic
mecanism
for
lowering
arm
34
Toggle
for
lowering
arm
35
Pick-up
lowering
38
To
stop
lever
37
Pick-up
cabie
38
Mains
cable
39
Mains
switch
40
Transit
safety
41
Idler
Wheel
42
Viscously
damped
spring
mounting
43
Conical
motor
shaft
44
Motor
45
Voltage
selector
46
Turntable
spindie
bearing
47
Switch
road
for
ON/OFF
switch
Motvikt
Skruv
för
motvikt
Bygel
fór
antiskating
Fláns
Vikt fór
náltryck
Skruv
fór
náltrycksvikt
Skala
för
náltryck
Spak
för
tonarmslyft
Tonarmstöd
Kantmutter
Pickuphus
Strömbrytare
tili-frän
Handtag
för
pickuphus
14
Fästskruv
för
montageplatta
Varvtalsförare
Overféringsarm
Varvtalsreglage
Motor-transportsákrings-
skruvar
19
Mellanhjulsfjäder
20
Blindskruv
(fór
LENCOCLEAN)
21
Spárrarm
22
Hällare
med
bladfjäder
23
Förskjutningsarm
med
bromsgummi
24
Brytararm
till
stoppautomatik
25
Reglerskruv
för
inställning
av
armlyft
26
Omkopplare
för
manuell-
automatstopp
=
Sonnoaunun-
sob
de
ei
Dä
dde
NDT
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