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Sony PS-212A Service Manual

Sony PS-212A
17 pages
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GENERAL
Power
Requirements:
Power
Consumption:
Dimensions:
110,
120, 220,
240
V
ac
adjustable,
50/60
Hz
(E
model)
240
V
ac,
50Hz
(UK
mode!)
220V
ac
(or
240V
ac
adjustable
by
authorized
Sony
personnel),
50/60
Hz
{AEP
model)
6W
Approx.
410
(w)
x
125
(h}
x
370
(d)
mm
16
(w)
x
5
(h)
x
14%
(d)
inches
including
projecting
parts
and
controls
SAFETY-RELATED
COMPONENT
WARNING!!
COMPONENTS
IDENTIFIED
BY
SHADING
AND
MARK
‘i
A
ON
THE
SCHEMATIC
DIAGRAMS,
EXPLODED
VIEWS
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.
ATTENTION
AU
COMPOSANT
AYANT
RAPPORT
A
LA
SECURITE!
LES
COMPOSANTS
IDENTIFIES
PAR
UN
TRAME
ET
(
UNE
MARQUE
A
SUR
LES
DIAGRAMMES
SCHE-
MATIQUES,
LES
VUES
EXPLOSEES
ET
LA
LISTE
DES
PIECES
SONT
CRITIQUES
POUR
LA
SECURITE
DE
FONCTIONNEMENT.
NE
REMPLACER'
CES
COMPOSANTS
QUE
PAR
DES
PIECES
SONY
DONT
LES
NUMEROS
-SONT
DONNES
DANS
CE
MANUEL
OU
DES
SUPPLEMENTS
PUBLIES
PAR
SONY.
SPECIFICATIONS
Weight:
TURNTABLE
Platter:
Motor:
Drive
System:
Speeds:
Pitch
Control
Range:
Wow
and
Flutter:
S/N
Ratio:
TONEARM
Type:
Arm
Length:
Overhang:
Tracking
Error:
Approx.
4.8
kg,
10
ib
10
0z
(net)
5.8
kg,
121b
13
0z
(with
shipping
carton)
a
31cm,
12%
inches
dia.,
aluminum-alloy
diecast
DC
servo-controlled
motor
(brushless
and
slotless)
Direct
drive
3314
rpm,
45
rpm
+3%
0.03
%
(WRMS)
+0.004%
(DIN)
70
dB
(DIN-B)
Statically
balanced,
universal
300
mm,
1134
inches,
overall
216.5
mm,
8%
inches,
pivot-to-stylus
16.5
mm,
2142
inches
+3°,
-1°
~
Continued
on
next
page
®
SERVICE
MANUAL
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Sony PS-212A Specifications

General IconGeneral
Speed33 1/3, 45 RPM
Drive MethodBelt drive
Tonearm TypeStatic balance type
Effective Length216.5 mm
Overhang16.5 mm
Cartridge TypeMoving Magnet (MM)
PlatterAluminum Die-Cast
Cartridge Weight Range4 - 10g
Output Level2.5 mV
Frequency Response20 Hz to 20 kHz
TypeManual Turntable

Summary

Specifications

General Specifications

Covers power requirements, consumption, and physical dimensions.

Turntable Specifications

Details platter, motor, drive system, speeds, pitch control, and wow/flutter.

Tonearm Specifications

Outlines tonearm S/N ratio, type, length, overhang, and tracking error.

Safety-Related Component Warning

Highlights critical components for safe operation and replacement guidelines.

Specifications (Continued)

Cartridge Specifications

Details specifications for VL-33G (AEP, UK) and VL-14GS (E) cartridges.

Model Identification

Information on identifying the turntable model via its specification label.

Section 1 Outline

Block Diagram

Provides a block diagram illustrating the PS-212A's internal circuitry.

Section 2 Disassembly

Removal Procedures and Cautions

General guidance, cautions, and specific steps for component removal.

Section 2 Disassembly (continued)

Bottom Board and Cord Installation

Instructions for removing the bottom board and installing cords.

Section 2 Disassembly (continued)

Tonearm and Arm Lifter Removal

Procedures for removing the tonearm and its lifter mechanism.

Section 2 Disassembly (continued)

Motor Removal

Steps involved in removing the turntable motor assembly.

Section 2 Disassembly (continued)

Cartridge Installation and Lead Wire Connection

Guides for installing a cartridge and connecting its lead wires.

Section 3 Adjustments

Mechanical and Speed Detecting Adjustments

Procedures for mechanical adjustments and speed detecting head output level.

Electrical Adjustments

Procedures for electrical adjustments like turntable speed.

Section 3 Adjustments (continued)

Motor Amp Offset and Hall Device Gain Adjustment

Adjustments for motor amplifier offset and Hall device gain.

Section 4 Diagrams

Mounting Diagrams

Shows the physical placement of components on circuit boards for different models.

Section 4 Diagrams (continued)

Schematic Diagram

Detailed electronic schematic of the turntable's circuitry.

Section 5 Exploded Views

Exploded Views of Assemblies

Diagrams showing exploded parts of the turntable, tonearm, and motor.

Section 6 Electrical Parts List

Components and Accessories

Comprehensive list of electrical parts, packing materials, and accessories.

Hardware Nomenclature

Screws, Nuts, Washers, and Retaining Rings

Lists and defines various hardware components used in the turntable.

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