Sony PS-LX230 User manual

PS-LX230C
with PS-LX-230.
VL-45G cartridge is supplied with PS-LX230C, while VL-42G
cartridge is supplied with PS-L X231. Cartridge is not supplied
PS-LX230:
US Model
PS-LX230C:
US Model
Canadian Model
PS-LX231:
AEP Model!
UK Model
E Model!
PS-LX231
SPECIFICATIONS
Tumtable
Platter 30.0 cm (12 in.), aluminum-alloy diecast
Motor DC servo motor
Drive system Belt drive
Controlsystem §DCservocontrol system
Speed 3341/3 rom, 45 rpm
Starting characteristics
Comes to nominal speed within
1/2 rotation (334/3 rpm)
Wow and flutter 0.045% (WRMS), + 0.06% (DIN)
Signal-to-noise ratio
70 dB (DIN-B)
Automatic system
Return, reject
Suspension system
High elasticity gel insulator
Tonearm
Type PS-LX230/230C: Statically balanced
PS-LX231: Dynamically balanced
Pivot-to stylus length |
216.5 mm (83/2 in.)
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
Cartridge
PS-LX230: Not supplied
PS-LX230C: VL-45G
Type Moving magnet type
Frequency response
20Hz to 20 kHz
Channel separation
20 dB at 1 kHz
Output voltage 3.5mVat1kHz,5cm/sec., 45°
Loadimpedance 50 to 100 kilohms
Tracking force 1.259
Stylus Sony ND-145G
(conical 0.6 mil diamond)
Weight 6g
— Continued on page 2 —
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET |
UNE MARQUE /\ SUR LES DIAGRAMMES SCHE- )
MATIQUES ET LA LISTE DES PIECES SONT CRITIQUES :
POUR LA SECURITE DE FONCTIONNEMENT. NE REM-
PLACER CES COMPOSANTS QUE PAR DES PIECES
SONY DONT LES NUMEROS SONT DONNES DANS CE
MANUEL OU DANS LES SUPPLEMENTS PUBLIES PAR
SONY.
STEREO TURNTABLE SYSTEM
SONY.

PS-LX230/LX230€/LX231
PS-LX231: VL-42G
Type Moving magnet type
Frequency response
20 Hz to 20 kHz
Channel separation
16 dB at 1 kHz
Output voltage 2.5mVat1kHz,5cm/isec.
Load impedance 50to 100 kilohms
Tracking force 2g
Stylus Sony ND-142G
(conical 0.6 mil diamond)
Weight 8g
General
Power requirements
US, Canadian model: 120 Vac, 60Hz
AEP model: 220 Vac, 50/60Hz (240V ac adjustable
by authorized Sony personnel)
UK model: 240V ac, 50/60 Hz (220V ac adjustable
by authorized Sony personnel)
E model: 110—120 or 220—240V ac adjustable,
50/60 Hz
Power consumption
5W
Dimensions Approx. 430 x 110 x 360 mm (w/h/d)
(17 x 43/3 x 14 in.)
including projecting parts and controls
Weight Approx. 3.5 kg (7 Ibs 12 02), net
MODEL IDENTIFICATION
— Specification Label —
PS-LX230
PS-LX231
SONY: MODEL NO.L____|
STEREO TURNTABLE SYSTEM
be cnnennaesingancniiienscaed
SERIAL NO.
MADE IN JAPAN
US, Canadian model: AC: 120V60Hz 5W
AEP model: AC: 220V~50/60Hz 5W
UK model: AC: 240V~50/60Hz 5W
E model: AC: 110—120V, 220—240V~
50/60Hz 5W
SAFETY CHECK-OUT (US Model)
After correcting the original service problem,
perform the following safety check before releasing
the set to the customer:
Check the antenna terminals, metal trim, ‘‘metallized”’
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5 mA (S00 microampers). Leakage
current can be measured by any one of three
methods.
1. A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
2. A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
3. Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The ‘“‘limit’’ indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
AC
vo/tmeter
(0.75 V)
= Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
x
2
4
i
a
:
&
&
q
i

PS-LX230/LX230C/LX231
FUNCTION OF CONTROLS PS-LX230/LX230C
The (T4P}iabel indicates that a cartridge is a standardized
plug-in type.
IWlustration: PS-LX230C
ANTI-SKATING compensator
rc & se $ Normally, set it at the center position. If the stylus is driven
e S$ Ss Co inward when the tonearm is lowered-to the lead-in groove,
o PY 4 oF turn the ANTI-SKATING compensator to ©. If the stylus is
< fe Fo ras outward, turn the ANTI-SKATING compensator to
A ia)
Center position
TRACKING FORCE FINE ADJUSTMENT
(PS-LX230/LX230C)
Tracking force is a vertical force applied to the stylus tip so
that it can accurately trace a record groove.
In this turntabie system, the correct tracking force is obtained
when the sub-weight is at the @ position. The sub-weight |
must be adjusted if the following irregurality is noticed.
If the stylus skips the grooves, set the sub-weight
towards +.
If the tracking force is too heavy, set the sub-weight
towards -.
— 3 —

PS-LX230/LX230€/LX231
SECTION 1
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
Remove dust cover and turntable.
MOTOR (M101) REMOVAL
screw, motor
BOTTOM PLATE REMOVAL
Remove 7 screws (PTPWH 3 x 12)
of bottom.
a
:
é oy
motor
ARM SECTION REMOVAL
When installing, distance between center of micro
— O PTPWH3x6 switch actuator and portion * of switch lever is
7mm.
ee
|
center
of
micro
switch
actuator
@ plate (upper), shield
© PTPWH3x 12
@ plate (lower), shield
Phono board
Otis
sgh ae ae See a ne it a a ee Be Te
six lead wire. =2Z
©
Unsolder
A
>
LA
arm
section
oe SagRS EES ea he i tie

PS-LX230/LX230C€/LX231
ARM PIPE REMOVAL (FOR PS-LX230/LX230C)
@ joint, center
O P2x5
@ ground plate
@ screw, pivot—__
Koay
‘A
@ nut (A), lock, wivor- 7 ;
ON
F Cpe—— @ screw, pivot
@ nut (A), lock, pivot
ARM PIPE REMOVAL (FOR PS-LX231)
PS3x6
Gs)
Q joint, center
ipe, arm
shaft assy, rotary O Pip
@ pin, horizontal

PS-LX230/LX230C/LX231
LEAD WIRE INSTALLATION
1. Pass piano wire with lead wires through pipe as
shown in Fig. A.
2. Pass piano wire with lead wires through center
joint assy as shown in Fig. B.
1
! lead wire
lead wire
Piano wire ————>
piano wire
Joint assy, center
SECTION 2
ADJUSTMENTS
Speed Adjustment
Note: Be sure to perform 45 rpm adjustment before 33 rpm.
— Using a stroboscope board — — Using a test record —
1. Put astroboscope board on the mat. 1. Puta test record (YFSC-16) on the mat.
2. Set the SPEED switch to 45. 2. Move the arm on a-2 (3 kHz) section and trace
Depress the lifter knob to make a lift-up mode it.
and move the arm on most outer-groove of a Adjust RV102 so that the frequency is 4038 —
record: 4062 Hz.
Adjust RV102 so that the stripped pattern of
Set the SPEED switch to 33.
stroboscope board is stationary.
Adjust RV101 so that the frequency is 2991 —
Set the SPEED switch to 33. 3009 Hz.
Adjust RV101 in the same way.
ee as |
eer
photo:
AEP model

Stylus Height Adjustment
1. Put a test record (YFSC-16) or a record on the
mat.
2. Depress the lifter knob to make a lifter-up
mode and move the arm on most outer-groove
of a record. Confirm that the stylus height from
a record is within specification. If not, turn the
adjustment screw.
3. Move the arm on most inner-groove of a record
and confirm that the stylus height from a re-
cord is within specification. If not, turn the ad-
justment screw and repeat steps 2 and 3.
Specification: 4 — 12mm (3/16 — 1/2 inch)
4—12mm
“HG TITTTTIT ITT IT
record
oo __
adjustment screw
PS-LX230/LX230€/LX231
Automatic Return Position Adjustment
1. Puta test record (YFSC-16) on the mat.
2. Set the SPEED switch to 33 and move the
tonearm on a return check groove.
3. Turn the adjustment screw so that the tone-
arm starts to return at count of 4 — 10.
adjustment screw
count increase count decrease

PS-LX230/LX230€/LX231
SECTION 3
DIAGRAMS
1
2
3
4
5
6
T
8
3-1.
MOUNTING
DIAGRAM
—
Conductor
Side
—
A
(SWITCH
BOARD]
SiO!
SPEED
f
i
ae
US,
CANADIAN,
:
[SYSTEM
CONTROL
BOARD)
—
AEP
MODEL
———
7T
|
ac
|
IN
|
|
Nov
_220v
G
|
I20V.
240V
|
|
|
|
|
|
D
|
|
|
|
|
|
ee
ee
een
ee
eee
et
_]
7.5V
(33rpm)
6V
(33rpm)
6V
(45rpm)
4.6V
(45rpm)
=
ala
a5
pT
"ta
dy
wHT
Se
=
:
TO
HEAD
SHELL
BLK
een
reo
wat
BLU
$102
~
|
TO
TURNTABLE
>
BLK
[PHONO
BOARD)
=a:
3
WHT
SHAFT
—
Fh
L-ck
(GROUND)
TO
PIPE
JOINT
|
f
R-CH
|
RED
|
;
@
Semiconductor
Lead
Layouts
:
Note:
“PC1470H
1S$S202-1
S1RBA10
;
@
Color
code
of
sleeving
over
the
end
of
the
jacket.

PS-LX230/LX230C€/LX231
PS-LX230/LX230€/LX231
5 6 7
= $ 4 EXPLODED VIEWS AND PARTS LIST
3-2. SCHEMATIC DIAGRAM :
NOTE:
* The mechanical parts with no reference The components identified | Les composants identifiés par %
number
in
the
exploded
views
are
not
by
shading
and
mark
A
are
[
une
trame
et
une
marque
A
sont
=
supplied. critical el safety. he os pour la sécurité. =
" " . Replace only with part e les remplacer que par
US. CANADIAN - Items marked " *. are not stocked since number specified. une pi&ce portant le numéro
"MODEL they are seldom required for routine spécifié.
Some d e 1 ay S h Ou ] d be a n t } Cc i < pens Pateteteterateroteteereronereresetererelelatecereletalerereteteteteleteterstoreratererersraresarsrereceseresoceseserensceresesecscesesaseascecesestasessestaseseness Satetatetaetacetatatatatatatenetetatatesetetetereeetatenee et rices
=
=
service.
Some
delay
should
be
antici-
=§-_—
a
csccssssssaaaanannennnnennenannassssassaasascccscaateaaananannannaanananseesesasae
soeesecessooosnoaaanananmanegy
h
items.
ttiti(i‘(itsCOCS
eee
DI02
1$$202-|
IC1Ol
pPCI470H
pated
when
ordering
these
ite
C103
:
Peer
*
The
construction
parts
of an
assembled
330
part
are
indicated
with
a
collation
number in the remark column.
sot 33] ,
'
Ie
4-1.
44
(including
@A)
48
C104
10 r)
+ 16V ;
DIO! SIRBAIO
RECT
39
SPEED ~o
AOJ
0 45 6V(33 rpm)
4.6V(45rpm)
a eee
pons ioe ‘(SWITCH BOARD) sg
‘Bae
(SYSTEM CONTROL BOARD] |
[PHONO BOARD]
~-
WHT
Pe
(@)
L-CH
NS
51
(®) R-CH
TO TURNTABLE
SHAF T(GROUND)
12
27
Note:
e
All
capacitors
are
in
uF
unless
otherwise
noted.
pF:
wuF
_
_
50WV or less are not indicated except for electrolytics No. Part No. Description Remarks | No. Part No. Description Remarks
and
tantalums.
.
1
*4-908-151-01
BRACKET
(C),
MOTOR
30.
4-875-208-31
REST,
ARM
e
All
resistors
are
in
Q
and
1/,W
or
less
unless
otherwise
2
4-909-061-01
CUSHION,
MOTOR
31
3-703-136-00
SCREW
+PTPWH
3X12
-£:
3
4-909-062-01
SCREW,
MOTOR
32
7-624-133-54
STOP
RING
10,
TYPE-CE
cna
sa
4
4-903-339-01
GEAR,
DRIVE
33
4-881-633-00
(LX231)......-00.
KNOB
(I),
IFC
©
pwr:
fusible
resistor.
5
X-4852-007-2
CLUTCH
(B)
ASSY
4-903-333-01
(LX230/LX230C)...KNOB,
IFC
@
(1%):
tolerance
identification.
6
4-852-013-05
CLUTCH
(A)
34
4-844-041-00
WASHER,
(N)
e
(___]:
adjustment
for
repair.
7:
7-688-003-11
W
3,
MIDDLE
35.
4-903-323-01
CAM,
IFC
| therwi 8 7-624-190-81 STOP RING 2, TYPE-CS 36 4-874-250-00 SPRING
Or
VOUBORS
ANG
Se
WMO
TESPEE
tO:
QrCUO
CHUM
er
en
icnwee
9
4-889-523-01
SHAFT,
CENTER
37
0-056-028-00
WASHER,
PLAIN,
14
DIA.
Ores:
A
10
7-624-133-34
STOP
RING
8,
TYPE-CE
38
X-4903-302-1
PLATE
ASSY,
UP
AND
DOWN
50
e
Readings
are
taken
under
no-signal
conditions
with
a
11
4-908-102-01
BEARING
39
*X-4903-416-1
TURNTABLE
ASSY
VOM
(50
k&Q/V).
12
4-908-101-01
HOLDER,
BEARING
40
4-858-264-21
LABEL,
CAUTION
;
13.
4-908-104-01
NUT,
BEARING
41
4-880-655-01
BELT
©
Voltage
variations
may
be
noted
due
to
normal
produc
14
4-908-141-01
RETAINER
(S),
THRUST
42
4-889-532-01
(AEP,UK,E)......PLATE,
BOTT(M
tion
tolerances.
15
4-875-214-00
LEVER,
SWITCH
4-889-532-11
(US,Canadian)...PLATE,
BOTTOM
i
16
*4-858-234-00
LEVER,
RETURN
43
4-857-653-00
HINGE,
DUST
COVER
Be
si
:
on
ee
=
17.
3-536-780-00
SPRING,
TENSION
(44°
~~
X-4903-415-1
COVER
ASSY,
DUST
45
==
Note:
The
components
identified
by
shading
and
mark
=
18
4-836-836-00
SPRING,
COMPRESSION
45
3-703-705-41
STICKER,
SONY
SYMBOL
(30)
aS itical for safety. Replace only with == 19 3-701-508-00 SET SCREW, DOUBLE POINT 3X6 46 3-701-806-00 ADAPTOR, 45, (E)
falas
ge
ave
Y
P
*
.
20
7-682-553-09
SCREW
+B
3X20
47
4-874-262-00
GUIDE,
RECORD
part
n
Pp
:
21
4-889-525-31
(LX231).......0..
PANEL,
CONTROL
48
4-913-521-01
(Canadian,AEP
,UK,E)...SHEET,
TURNTABLE
saga
aaa
ascents
4-889-525-41
(LX230/LX230C)...PANEL,
CONTROL
4-913-521-11
(US).......e000006eeSHEET,
TWRNTABLE
Se
eee
22
4-861-933-00
SLEEVE
(D)
49
*4-903-462-01
(UK).......c000.
LABEL,
MODEL
NUMBER
Fi
eds
wh
Sy
ipo
aa
cata
eee
—P
Sts
ss
|
a
23.
4-812-554-00
WASHER
*4-903-463-01
(AEP).....
»+++.eLABEL,
MODEL
NUMBER
a
Note:
Les
composants
identifies
par
une
trame
et
une
eS
24
-7-685-152-14
SCREW
+P
3X25
TYPE2
SLIT
*4-903-464-01
(US,Canadian)...LABEL,
MODEL
NUMBER
ae
marque
/\
sont
critiques
pour
la
sécurité.
Ne
les
_
ee
een
Denes:
ee
*4-903-473-01
(E).......+.....+LABEL,
MODEL
NUMBER
iéce portant le numéro = ~301-64/- , 50 7-621-738-08 SET-SCT, HEX. 2.6X4, FLAT POI NT
remplacer
que
paluine
Ricco?
7
27
-3-703-137-00
SCREW
+PTPWH
3X10
51
3-701-690-00
_(UK)....LABEL
(MADE
IN
JAPAN)
spécifie.
28
=4-881-608-21
KNOB,
REJECT
52
3-703-845-01
(US,Canadian,UK)...LABEL,
MAIN
CAUTION
SN
ee
a
ee
eee
29
3-533-014-00
SPRING,
COMPRESSION
53
4-876-344-00
(AEP)...LABEL,
CAUTION,
POWER
CORD
54 *4-881-683-00 (E)..... LABEL, VOLTAGE
9
—10—
M101
8-835-126-01
MOTOR,
DC
(DNR-7600A)
HV
10V 7.5V(33rpm) ity
R104
ik 6V (45rpm) 1)
D102
(2)
H [
J J

AA
134-8
switch board
al
No.
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
PS-LX230/LX230€/LX231
I
a
ve
b
4
I
CP
117
ze e T101
: 901
(including 4A, B)
136
ss: The components identified | Les composants identifiés par ee
=: by shading and mark A are [ une trame et une marque A sont Be
= critical for safety. critiques pour la sécurité. m
ss Replace only with part Ne les remplacer que par
= number specified. une piéce portant le numéro
spécifié.
Part
No.
Description
Remarks
|
No.
Part
No.
Description
Remarks
A-4637-063-A ROD ASSY (P), PUSH 102,103 124 7-685-152-14 SCREW +P 3X25 TYPE2 SLIT
*4-876-317-00 GUIDE, LIFTER 125 4-875-207-00 SLEEVE
7-621-741-09
SET-SCT,
HEX.
2.6X8
WP
126
4-870-785-00
SPRING,
TENSION
(MAIN
LEVER)
*4-903-321-01
LEVER
(G),
LIFTER
127
3-610-931-11
SPACER,
SHAFT,
DRUM,
HEAD
*4-903-317-01
LEVER
(F),
LIFTER
128
7-685-666-21
SCREW
+BVTP
4X30
TYPE2
SLIT
129. =*4-889-524-01 PLATE (LOWER), SHIELD
4-881-642-00 SPRING, COMPRESSION 130 7-623-422-07 LW 3, TYPE B
*4-881-611-00 SHAFT, LEVER, LIFTER
7-621-775-50 SCREW +B 2.6X10 131 *4-889-526-01 PLATE (UPPER), SHIELD
*X-4877-805-6 LEVER ASSY, MAIN 132 *4-870-752-00 HOLDER, SPRING
7-682-150-01 SCREW +P 3X12 133. *4-889-527-01 BRACKET, SWITCH
134 7-621-775-08 SCREW +B 2.6X3
4-889-531-41
FRAME
135
4-870-730-21
KNOB,
SPEED
4-903-331-01 SPRING (LIFTER), COMPRESSION 136 X-4903-301-1 INSULATOR ASSY
*4-301-647-00 WASHER, SPECIAL
3-703-136-00 SCREW +PTPWH 3X12 901 *1-614-795-11 PC BOARD, SYSTEM CONTROL
4-877-824-00 CAM, LIFTER 902 *1-535-117-00 TERMINAL
*4-903-320-01
3-703-137-00
*4-875-205-00
4-875-204-00
3-491-240-00
*4-858-240-00
4-861-933-00
4-812-554-00
903 1-551-294-00 CORD (WITH PLUG)
RETAINER (D), LIFTER
SCREW +PTPWH 3X10
PLATE, FIXED
SPRING
SPRING, TENSION S101 1-570-166-11 SWITCH, PUSH (1 KEY)
LEVER
(M),
CLUTCH
S102
1-570-489-11
SWITCH,
MICRO
SLEEVE (D)
WASHER
PS-LX230/LX230€/LX231
Pea or een ee, ee goer
4-3.
No.
151
152
153
154
155
156
157
158
159
160
161
162
163
Part No.
4-889-529-11
4-868-016-00
4-889-510-00
7-682-555-09
7-688-003-11
7-623-505-01
4-889-528-11
7-621-771-06
7-623-508-01
7-682-545-09
X-4881-605-1
4-880-619-00
3-701-437-01
Description
JOINT, PIPE
HOOK , SPRING
SPRING, TENSION
SCREW +B 3X30
W 3, MIDDLE
LUG, 2
PIPE, ARM
SCREW +B 2X5
LUG, 3
SCREW +B 3X4
SHAFT ASSY, ROTARY
PIN, HORIZONTAL
WASHER
stylus tip
head shell
Remarks No.
164
165
166
167
168
905
906
907
— 2—
FOR PS-LX231
Part No.
4-880-631-11
7-682-647-09
3-706-613-00
*3-706-612-00
3-706-614-11
1-557-042-11
1-557-042-21
1-557-042-31
1-§57-042-41
1-549-109-21
1-549-112-00
Description
JOINT, CENTER
SCREW +PS 3X6
PROTECTOR
LABEL, CARTRIDGE
SHELL
LEAD (WITH TERMINAL) RED
LEAD (WITH TERMINAL) GREEN
LEAD (WITH TERMINAL) BLUE
LEAD (WITH TERMINAL) WHITE
CARTRIDGE(WITH SHELL) (VL-42G)B 166-168,907
STYLUS (ND-142G)
Remarks