Technics SL-DL1 User manual

ORDER NO. §D81051897C4
Service Manual
Direct Drive Automatic Turntable System
= OL- DLI
* [PA] is available in far East PX.
* [PE] is available in European Military. [PA], [PE], [
* [PC] is available in European Audio Club.
SL-DL1( K)
*The colors of this model included silver and black.
* The black type model is provided with (K) in the [PC]
Service Manual.
For additional information, please refer to the service manual for Model No. SL-DL1/SL-DL1 (K)
(ORDER NO. $D81041862C8).
Notes: * This service manual included only the change of the SL-DL1/SL-DL1 (K) service manual
(ORDER NO. SD81041862C8).
* When servicing model SL-DL1 [PA, PE, PC] /SL-DL1 (K) [PC], this service manual and
SL-DL1/SL-DL1 (K) (ORDER NO. SD81041862C8) service manual should be used together.
@ REPLACEMENT PARTS LIST
Change of Part No. Per Set Remarks
SL-DL1/SL-DL1 (K) ae (kK) | Part Name & Description | (p¢¢ )
)
(ORDER NO. SD81041862C8 (PA, PE, PC]
MAIN CABINET PARTS
SFNND11S01 SFNND11P01
SFNND11G02
SFNND11R01
SFNND11X01
SJA88
@FC1205M AC Cord
QFC1208M
SFUM190—11
SFUM190—12
ACCESSORIES
[PA] , [PE]} Name Plate
SFNND11P02 [PC]| Name Plate
4.
SFUM190—12 Bushing, AC Cord
SFNUD11S01
SFNUD11G01 SFNUD11P01 Instructions Book, Printed Matter
SFNUD11X01
SFDK119118 Deletion 2 Pin Plug
Addtion QJPO603S Adaptor, Gimens
Panasonic Tokyo
' i e2 nni Matsushita Electric Industrial Co., Ltd. Matsushita Electric Trading Co., Ltd.
Cc 1CS 1-2, 1-chome, Shiba-koen, Minato-ku, Tokyo 105 Japan P.O. Box 288, Centra Ogsaka Japan

Change of Part No.
hee SL-DLY/SL-DL1(K) gg SL-DL1/SL-DL1 (k)| Part Name & Description
(ORDER NO. SD81041862C8) [PA, PE, PC]
PACKING PARTS
© |SFHPD11M01
PI © |SFHPD11C01
Flsexpo: 1M21 SFHPD11M21 | Carton Box (Black)
SFHPD11M01 Carton Box (Silver)
P11 SFHSCO7—02 Deletion Spacer (A), Corner
P12 SFHSCO7—03 Deletion Spacer (B), Corner
CAPACITORS
:
ECNC4A473MD Polyester, 0.047uF
C401 At ECQE2A473MZ
ECQE2A473MZ 250VAC, + 20%
Polyester, 0.01uF,
250VAC, + 20%
c501_ =| A | ECQE2A103MZ Deletion
Printedin Japan
810404c9 © TK/Yw

ORDER NO. SD81041862C8
-
Service
Manual
Direct Drive Automatic Turntable System
Areas
oL-DL1
[E], [EK], [XL], [EB], [EF],
[EG], [El], [EH], [XA], [XM]
SL-DL1(k)
[E], [XL], [EG],
[EH], [XA], [XM]
* [E] is available in Switzerland and Scandinavia.
7] Bo)
@ Cartridge section
Type:
Magnet:
Magnetic circuit:
F requency response:
Output voltage:
Deutsch
TECHNISCHE DATEN
@ Allgemeine Daten
Moving magnet stereo cartridge
One point suspension system
Samarium cobalt (Sm-Co)
All laminated core
10 Hz to 35 kHz
20 Hz to 10 kHz + 1dB
2.5 mV at 1 kHz, 5cm/s. zero to
peak lateral velocity
(7 mV at 1 kHz, 10cm/s. zero to
peak 45° velocity [DIN 45 500] )
Channel separation:
Channel balance:
Recommended load
impedance:
Compliance (dynamic):
Stylus pressure range:
Weight:
Replacement stylus:
Anderungen der technischen Daten vorbehalten.
More than 22 dB at 1 kHz
Within 1.8 dB at 1 kHz
47 kQ ~100kQ
12x 10° cm/dyne at 100 Hz
1.25+0.25g (125+ 2.5 mN)
6 g (cartridge only)
EPS-23CS
(Equivalent replacement stylus:
EPS-23ES)
Die angegebenen Gewichts- und Abmessungsdaten sind circa Werte.
* [EK] is available in United Kingdom.
* [XL] is available in Australia.
* [EB] is available in Belgium.
* [EF] is available in France.
* [EG] is available in F.R. Germany.
~ 110-120/220-240V ,, 50/60 Hz
Wechselstrom
Leistungsaufnahme: 17W
Abmessungen: 43 x 8,8 x 35cm
(Bx Hx T) 43 x 39,7 x 35 cm
(Maximale Hohe bei vollstandig
gedffnetem Gehauseoberteil.)
Gewicht: 7,1 kg
Rumpel-Fremd-
spannungsabstand:
Rumpel-Gerausch-
spannungsabstand:
Stromversorgung:
—56 dB (IEC 98A unbewertet)
—78 dB (IEC 98A bewertet)
* [E11] is available in Italy.
* (EH] is available in Holland
* [XA] is available in East South Asia, Oceania, Africa,
Middle Near East and Central South America.
* [XM] is available in Central South America.
* The colors of this model include silver and black.
*The black type model is provided with (K) in the
Service Manual.
@ Tonarm
Typ: Dynamisch ausbalancierter
Tangential-Tonarm mit Kardan-
English
Specifications
@ General
Power supply:
Power consumption:
Dimensions:
(Wx Hx D)
Weight:
@ Turntable section
Type:
Drive method:
Motor:
Drive method:
Turntable platter:
Specifications are subject to change without notice for further improvement.
Weight and dimensions shown are approximate.
~110-120/220-240V , 50/60 Hz
17W
43 x 8.8 x 35cm
43 x 39.7 x 35cm
(Maximum height when top (dust
cover) is open.)
7.1 kg (15.6 Ib.)
Automatic turntable
Auto start/Auto lead-in
Auto return
Auto stop
Repeat play
Auto speed select
Manual speed selection possible.
Auto size select
2-speed search functions
Record presence detection
Direct drive
Brushless DC motor
F.G. servo control
Aluminum die-cast
Diameter 31.2 cm
Technics
Turntable speeds:
Pitch control:
Wow and flutter:
33-1/3 rom and 45 rpm
Auto speed select
(Manual selection possible)
10% adjustment range
0.012% WRMS*
0.025% WRMS (JIS C5521)
+ 0.035% peak
(IEC 98A Weighted)
* Measured by obtaining signal from built-in frequency
generator of motor assembly.
Rumble:
@ Tonearm section
Type:
Effective length:
Tracking error angle:
Effective mass:
Resonance frequency:
Tonearm drive motor:
Matsushita Electric Trading Co., Ltd.
PO. Box 288, Central Osaka Japan
—56 dB (IEC 98A Unweighted)
—78 db (IEC 98A Weighted)
Dynamic balanced type
Linear tracking tonearm
4-pivot gimbal! suspension
10.5 cm (4-1/8")
Within + 0.1°
9 g (including cartridge)
12 Hz
DC motor
@ Plattenspieler
Typ:
Antrieb:
Motor:
Antriebsregel-Methode:
Plattenteller:
Plattenteller-
Drehzahlen:
Drehzahl-
Feinregulierung:
Gleichlaufschwan-
kungen:
Automatischer Plattenspieler
Auto-Start/Auto—Zufthrung
Ruck filhrautomatik
Stopp-Automatik
Wiederhoi-Betrieb
Automatische Drehzahlwahl
Manuelle Orehzahlwah! mdglich
2-Geschwindigkeiten-
Suchfunktionen
Plattenprasenz-Registrierung
Direktantrieb
Kollektorloser Gleichstrommotor
FG-Servo-Steuerung
Aluminium-Druckgu
Durchmesser 31,2 cm
33-1/3 und 45 U/min
Automatische Drehzahlwahl
(manuelle Wahl mdéglich)
10% Einstellbereich
0,012% WRMS*
0,025% WRMS (JIS C5521)
+ 0,035% Spitze
(IEC 98A bewertet)
* Gemessen anhand von Signalen vom eingebauten
Frequenzgenerator des Motorbauteils.
Effektive Lange:
Spurfehlwinkel:
Effektive Masse:
Resonanzfrequenz:
Tonarm-Antriebsmotor:
@ Tonabnehmer
Typ:
Magnet:
Magnetkreis:
Frequenzgang:
Ausgangsspannung:
Kanaltrennung:
Kanalabweichung:
Empfohlene
Endimpedanz:
Nachgiebigkeit
(dynamisch):
Auflagekraft-
Einstellbereich:
Gewicht:
Ersatznadel:
aufhangung mit 4-Punkt-Drehlager
105 mm
Innerhalb + 0,1°
9g (einschlieRlich Tonabnehmer)
12 Hz
Gleichstrommotor
Stereo-Magnet-Tonabnehmer mit
Einpunkt-Aufhangungssystem
Samarium-Kobalt (SM-Co)
Ganzlamellenkern
10 Hz bis 35 kHz
20 Hz bis 10 kHz+ 1dB
2,5 mV bei 1 kHz
5 cm/s. Null-zu-Spitze, lateral
(7 mV bei 1 kHz 10 cm/s. Null-
zu-Spitze, 45° [DIN 45 5001)
Mehr als 22 dB bei 1 KHz
Innerhalb 1,8 dB bei 1 kHz
47 kQ. ~ 100k
12 x 10° cm/dyn bei 100 42
1,25+ 0,259 (12,5 + 2,5rmN)
6 g (nur Tonabnehmer)
EPS-23CS
(Gleichwertige Ersatznadel:
EPS-23ES)

eo]
Francais
CARACTERSTIQUES
Les spécifications sont susceptibles d’étre modifiées sans préavis.
Le poids et les dimensions donnés sont approximatifs,
m@ Généralités
Alimentation: Alternatif 110-120/220-240V , 50/60 Hz
Consommation: 17W
Dimensions: 43 x 8,8 x 35cm
(Lx Hx P) 43 x 39,7 x 35cm
(Hauteur maximum lorsque le dessus
(couvercle protégepoussiére) est ouvert.)
Poids: 7,1 kg
@ Platine de lecture
Type: Platine automatique
Départ automatique/Entrée
automatique
Retour automatique
Arrét automatique
Audition répétée
Sélection de vitesse automatique
Sélection de vitesses manuelle possible
Sélection automatique du diamétre
Fonctions exploratrices 4 2 vitesses
Détection de la présence d’un disque
Systéme d’entraine-
ment: Entrainement direct
Moteur: Moteur C.C, sans balai
Groupe de réglage: Servocommande du générateur
de fréquence
Aluminium moulé sous pression
Diamétre 31,2 cm
33-1/3 et 45 t/p.m
Sélecteur de vitesse automatique
(Sélection manuelle possible)
Plage de réglage de 10%
Plateau de lecture:
Vitesses de rotation:
Réglage d’écart:
Pleurage et scintille-
ment: 0,012% de valeur efficace*
0.025% de valeur efficace
(JIS C5521)
+0,035% de créte
(IEC 98A Pondéré)
* Mesuré par t’obtention d’un signal provenant du générateur ce
fréquences incorporé de I’ensemble du moteur.
m@ CONTENTS
Page
LOCATION OF CONTROLS...........0.000eeee 4,5
FEATURES....... Fie He Faye tae a's ekg ies trues SE Soe Venn ee 6
QUICK REFERENCE CHART FOR
START AND STOP OPERATION .......... haste teed 6
DISASSEMBLY INSTRUCTIONS..............-. 7~10
HOW TO SET THE TONEARM DRIVE ROPE........... 11
REPLACEMENT OF HALL ELEMENT............ oie 14
DESCRIPTION OF.CONNECTOR..........-...0.00-. 12
MEASUREMENTS AND ADJUSTMENTS (English)... . . 12~15
MESSUNGEN UND JUSTIERUNGEN (Deutsch) ...... 15 ~17
Ronflement: —56 dB (IEC 98A Non pondéré)
—78 dB (IEC 98A Pondéré)
@ Bras de lecture
Type: Bras de lecture d’alignement
linéaire de type 4 équilibre
dynamique avec suspension a la
cardan a 4 pivots
Longueur effective: 405 mm
Angle d’erreur de piste: En decd de t 0.1°
Masse réele: 9g (y compris la cellule pick-up)
Fréquence de
résonance: 12 Hz
Moteur d’entrainement
du bras de lecture: Moteur C.C, sans noyau
W@ Cellule pick-up
Type: Cellule pick-up stéréo 4 aimant mobile
Systéme de suspension ponctuelle
Aimant: Samarium-Cobalt (Sm-Co)
Circuit magnétique: Noyau entiérement feuilleté
Réponse en fréquence: 10 Hz a 35 kHz
20 Hz410kHz+1dB
2,5 mV a1 kHz;5cm/s.,zéro a vitesse
latérale de créte
{7 mV a1 kHz; 10 cm/s., zéro a vitesse
45° de créte [DIN 45 500) )
Séparation des canaux: Plus de 22 dB a1 kHz
Equilibrage des canaux: En deca de 1,8 dB 4 17 kHz
Impédance de charge
recommandée: 47 kQ ~ 100k
Elasticité (dynamique): 12 x 10°° cm/dyne a 100 Hz
Plage de la force
verticalle: 1,25+0.25g (12,5 +2,5 mN)
Poids: 6 g (cellule seule)
Remplacement de la
pointe de lecture:
Tension de sortie:
EPS-23CS
(Pointe de lecture de remplacement
équivalente: EPS-23ES)
Page
MESURAGES ET MISES AU POINT (Frangais) ....... 18 ~ 20
REPLACEMENT PARTS LIST
Cabinet & Chassis Parts... 2... 0... ee ee ee ees 20, 21
Electrical Parts... 1... ee ee te eee 23, 31
EXPLODED VIEW... . 2... 2... ee eee eee eee 21~24
CIRCUIT BOARD AND WIRING
CONNECTION DIAGRAM ........-.--000006 25, 26
SCHEMATIC DIAGRAM ............20002000 27,28
BLOCK DIAGRAM. ........ 0... eee ee ee et eee 29, 30
PACKING 8. ost 5. ere x oa ened eel ws Mow een de etna ects 32
m@ LOCATION OF CONTROLS
Upper
cabinet
(Dust
cover)
Record
groove
scale
Tonearm position indicator LED
Cartridge
Strobe-illuminator/
Pilot lamp
Power switch Stop switch
3}
Start
switch
Cueing control
Speed selector
Pitch control
Repeat switch
Optical sensor Arm lock
Disc size selector
Reset switch
Stylus-pressure adjustment screw
Light guide slits
Turntable
mat
Center
spindle
Turntable platter
Lower cabinet

Speed selector P.C.B.f@
Neon lamp P.C.B.
Pitch control (VR601)
SL-DL1 7} BS
Operation P.C.B. BJ
Voltage adjuster switch (S402)
Power switch (S401)
Power transistor P.C.B.
Power P.C.B.E)
m FEATURES
Dynamic balanced linear tracking tonearm employs
optical sensor and groove deflection angle detection
for extremely stable and accurate tracking.
The linear tracking tonearm moves across the record surface
in the same way as the cutter head used to make the record
in the first place. Therefore there is virtually no tracking
error or skating force.
Located by the stylus is an optical sensor that detects
tracking conditions by means of groove deflection angle.
Based on this information, tonearm movement is controlled
to maintain optimum tracking at all times.
A precision DC motor is used for tonearm drive to
assure quiet and accurate control.
Simple base operation. Completely automatic play.
Turn on the power, put on a record, close the top and press
the start switch. After that, everything is handled by the
microcomputer and optical sensor which automatically
detect record size, select correct speed and cue the tonearm
to the lead-in groove.
For non-standard records, front panel speed selectors let
you select the correct speed manually (large 45s, or small
33-1/3 records, for example).
The tonearm automatically returns to the start position
after completing play. The tonearm does not move if no
record is on the platter.
Complex operation also possible.
Main P.C.B. EY ae sets : : : :
Baulee
transformer}
A
precision
DC
motor
and
low-friction
slide
bearing
assure
Although
easy
operation
is
a
basic
feature
of
this
unit,
accurate tonearm movement. complex functions are also possible. The “search” function
Reset
switch
(S307)
A
4-point
pivot
bearing
gimbal
suspension
developed
by
allows
start,
stop
switches
controlled
inward
and
outward
Technics reduces friction and raises sensitivity while con movement of the tonearm at slow and fast speed, plus fine
tributing to smooth tracing ability. control in approximately 1 mm steps.
Disc size detector LED P.C.B.
eh Start Switch Stop Switch
%* $309 (end detection switch) will pressed
be
replaced
by
MN1400PE
of
aaa
aaa
Pressed
Pressed
which the end detection unit is Pressed momen- continuously Pressed momen- continuously
built
into
MN1400PA
(1C301)
in
Dust
cover
tarily
(less
than
|
Pressed
tarily
(tess
than
|
Pressed
+
the course of manufacture. Cueing ene'sécond) intermittently Lightly Hard one second) intermittently Lightly Hard
Disc size sensor P.C.B. Rest position switch (S308) Bpidenn as o- Bee ie i ee te
End position switch (S309) Cartridge Cueing up Tonearm moves Tonearm Tonearm moves Tonearm
(¥) inward in moves es ————_ | outward in moves Moves
Tonearm - small steps. inward, aster smal{ steps. outward. faster.
Arm drive wheel
Tonearm rises Tonearm | Tonearm Tonearm | Tonearm
A ds Cueing down and returns to rises rises rises rises
rm
_
drive
motor
Arm
base
start
position
—————_———
and
and
gee
Sa
and
and
(¥) and begins play moves moves moves moves
again. inward. faster, outward. | faster.

eo] |
m@ DISASSEMBLY INSTRUCTIONS ¢ How to remove the cartridge
1. Open the upper cabinet and turn the arm lock in the direction of the
arrow to lock the tonearm.
Sian
ecblaae
lt
tadgiiel
riretoanies
main
P.C.B
©
de.
9)
2.
Loosen
the
cartridge
setscrew
with
the
screwdriver.
(Turn
the
set-
.
; ‘
F
0
i
i
4)
screw
until
it
is
freed
as
shown
in
Fig.
5.)
2.
Turn
era
jas
sae
down,
renin
nek
—
cloth:
or
the
like
8
AS
05]
iz
3.
Pull
out
the
cartridge,
taking
care
not
to
touch
the
stylus.
(Fig.
6)
asac
0
protect
the
upper
cabi nd
dust
cover.
insulator
~Q
|
; ;
:
3.
Remove
the
insulator
and
bottom
board
setscrews
@~
@.
Then
the
3
©
o
FO
sii
eee
Teer
niene:
oe
ee.
Entel
coeector
wi
, Bottom board b d, (See Fig. 1) : Insulator the cartridge pin and completely insert the cartridge and tighten
ottom board can be removed. (See Fig. aris e thesetscrew. (Fig. 6)
4. Remove the rear cover setscrews (@ and @® to remove the rear cover. Le
(Fig. 2)
5. Remove the main P.C.B. setscrews @ ~ @ and connectors @ ~ @. Then
the main P.C.B. can be removed. (See Fig. 3)
*When installing the main P.C.B. onto the main body, make sure that the
connector @ (CN102) is engaged with the stator frame pin. (Fig. 3) Bottom board
% Please note that the front Fig. 1
and rear insulator springs
are different from each
other.
Front. .... | White
Rear ...... Yellow
e How to remove the surface plate and dust cover
1. Remove the cartridge. (Refer to ‘How to remove the cartridge’”.)
2. Open the upper cabinet and push the scale part of the surface plate
from inside. (Fig. 7)
* Carefully remove the surface plate since it is secured with double-
sided tape.
3. Remove the dust cover setscrews @ ~ @ . (Fig. 8)
4. Completely open the dust cover; remove the upper cabinet cover
setscrews @) ~ @ ; and remove the upper cabinet cover while
pulling the tonearm in the direction of the arrow. (Fig. 9)
5. Remove the dust cover setscrews @ and @ .
Then the dust cover can be removed by pulling it in the direction of
the arrow. (Fig. 10)
Main P.C.B.
Fig. 3
e How to remove the stator frame
1. Remove the main P.C.B.
(Refer
to
“How
to
remove
the
bottom
board
and
main
P.C.B.”)
2. Remove the stator frame setscrews @ ~ €). Then the stator frame
can
be
removed.
(Fig.
4)
®—
j
Surface plate
Stator
frame
Fig. 4

Upper cabinet cover
Fig. 9
Dust cover
Fig. 10
How to remove the upper cabinet
. Remove the rear cover. (Refer to “How to remove the bottom
board and main P.C.B.”’)
. Remove the connectors @ ~ @ . (Fig. 11)
. Remove the hinge setscrews @) ~ @ ; open the upper cabinet and
remove it by lifting. (Fig. 11)
Upper cabinet

SL-DL1
How to remove the arm drive plate and disc size sensor P.C.B.
. Remove the upper cabinet cover. (Refer to ‘How to remove the surface plate and dust cover.’”’)
Remove the disc size sensor P.C.B. setscrew @ and connectors @ , @ . (Fig. 12)
To
remove
the
disc
size
sensor P.C.B.
completely,
remove
the
upper
cabinet
and
the
lead
wire
clamper
setscrews
@
in
Fig. 12.
(Refer
to
‘How
to
remove
the upper
cabinet.”}
4.
Remove
the
arm
drive
rope
from
the
tonearm,
and
remove
the
arm
drive
plate
setscrews
@
~
@).
Then
the
arm
drive
board
can
be
detached.
(Fig.
12)
WNae
| Dise size sonsor P.C.B.
Lead wire
clamper
Fig. 12
® How to remove the tonearm
1. Remove the upper cabinet. (Refer to “How to
remove the upper cabinet.’’)
2. Remove the arm drive plate.
(Refer to “How to remove the arm drive plate and Ds
disc size sensor P.C.B.’’) ee --@
3. Remove the tonearm guide rail setscrew @ and lead @—% Tonearm
wire clamper setscrews @ , @. Then the tonearm
can be removed. (Fig. 13)
PRS?
Fig. 13

m HOW TO SET THE TONEARM DRIVE ROPE
If the rope is disengaged or when setting a new rope, follow the pro-
cedure below.
1.
2.
Tonearm
cramp
Remove the upper cabinet cover.
(Refer to “Disassembly instructions.’’)
Remove the E-ring @ and washer @ to remove the arm drive wheel.
(Fig. 14)
. Turn over the arm drive wheel, and set the rope according to the
steps 1 ~ 3 in Fig. 15.
. Holding the rope set over the arm drive wheel, set the drive wheel
and rope according to the steps 4 ~ 5 in Fig. 16.
. After setting the rope, rotate the worm gear by hand to adjust the
tonearm and rope connector positions, and secure them.
. Rotate the worm gear by hand to check that the tonearm moves
smoothly.
. Mount the E-ring @ and washer @ .
Arm drive
wheel
The rope (* 2) should be
positioned above the rope (1).
Fig. 15
@ REPLACEMENT OF HALL ELEMENT
When replacing the Hall element of the stator frame, be
sure to place it with the marking side up as shown Fig. 17.
* The leg position is not specified provided that the mark-
ing side is up.
Worm gear
SL-DL1
Arm drive
wheel
Arm drive
rope
Fig. 16
Stator frame
Fig. 17

Bo) |
m@ DESCRIPTION OF CONNECTOR
Two types of connectors are used for this unit: one is directly soldered
to the printed circuit board, and the other is insertion type.
The insertion type is represented by ‘‘CN’’, while the direct soldering
type is by “BT”. (See Fig. 18)
Note:. Soldered connectors {indicated by BT) cannot be pulled out.
BT —eN
Connector
‘Connector
Insertion type
Soldered
Fig. 18
Mm MEASUREMENTS AND ADJUSTMENTS sees English eee
NO —
Adjustment of auto start
(Use a 30cm disc for this adjustment.)
Remove the surface plate. (Refer to “Disassembly instructions.’’)
. Make sure that the tonearm is at the start position (the outermost
periphery of turntable).
Insert the screwdriver into the adjusting hole. (Fig. 19)
* The start position is too much inside:
Turn the screwdriver counterclockwise.
*The start position is too much outside:
Turn the screwdriver clockwise.
. If the start position is still deflected, turn the auto start position
adjusting screw. (Fig. 19)
* The start position is too much inside:
Turn it clockwise.
*The start position is too much outside:
Turn it counterclockwise.
After the adjustment, be sure to lock the adjusting screw with bond.
Adjustment for the stylus pressure
Stylus pressure is normally set to 1.25 g but may be raised or lowered
by +0.25 g. It may be necessary to increase stylus pressure when play-
ing records cut at high levels, or when room temperature is low, or
when the unit easily picks up external vibrations. This will halp prevent
distortion and groove-skipping. In such cases turn the screw clockwise
(+) so the dial scale shows the desired stylus pressure, as indicated in
the illustration. (Fig. 20)
Note: Do not turn the stylus-pressure adjustment screw further than
the set limits (1.5 g ~ 1.0 g).
(12)
Adjusting screw
Adjusting hole
Stylus-pressure =—-™ +
adjustment screw
1.25 g |
10g —eo
Fig. 20